Could someone please post this TSB with all the graphics included. I'm thinking of doing this to my 2500HD Duramax to help the AC cool better when OAT is above 95F. I'm really curious about the size of the fan they mention.

OR #01-01-39-004a which supercedes it and adds pickups to the list of affected trucks.


Thanks,

That tsb is for 6.0 gas motors in SUV's

That tsb is for 6.0 gas motors in SUV's

I understand, but I have the same problem with AC performance on my truck and GM has put over 2K in new AC parts and fan clutch in my truck and told me its as good as it's going to get. 62-65 out of the center duct when its 100F outside and the truck never cools down inside.

So I figured I would try this fan setup on my own nickle. I just need an idea of the size of the fan, where it mounts and how to hook it into the system. All of that should be in the TSB that I need.

Thanks,

with the trans cooler and all that, it wont work out right. Sounds to me like someone dosnt know what they are doing. On recirculate and on med fan speed, should see like 42-48 at an idle.

You dont have a lot sand built up in the intercooler/condensor/radiator do you?

On recirculate and on med fan speed, should see like 42-48 at an idle.

I wish I could see that at an idle on a day with +95 OAT. :(

My 99 6.0 gas truck would.

Anyone have this done?

Poor A/C Performance - A/C Will Not Blow Cold Enough (Perform A/C System Checks, Replace Accumulator, If Necessary) #02-01-38-007C - (Jul 27, 2004)

Poor A/C Performance -- A/C Will Not Blow Cold Enough (Perform A/C System Checks, Replace Accumulator if Necessary) 2002-2004 Chevrolet Silverado
2002-2004 GMC Sierra
with 6.6L Diesel Engine (VINs 1, 2 -- RPOs LB7, LLY)
and Denso A/C Compressor
This bulletin is being revised to add part numbers for the hose, bracket and insulator to the Parts Information. Please discard Corporate Bulletin Number 02-01-38-007B (Section 01 -- HVAC).
(#ss1-1539443) Condition (#ss1-1539443)

Some customers may comment on less than desirable A/C performance, especially when the ambient temperature is above 32°C (90°F).
(#ss2-1539443) Correction (#ss2-1539443)

Perform the following A/C system checks and replace the accumulator with P/N 89018601, if necessary. This new accumulator requires the accumulator bracket, the accumulator insulator and the A/C suction hose to be replaced also.
<table border="0"> <tbody> <tr> <td valign="top"> • </td> <td valign="top">Check for A/C system leaks. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> • </td> <td valign="top">Check the A/C system for proper refrigerant charge. This requires recovering the refrigerant to determine charge in system. Refer to Refrigerant Recovery and Recharging in the HVAC sub-section of the Service Manual. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> • </td> <td valign="top">If no leaks were found and the A/C system is charged to specification, replace the accumulator using the procedure listed below. </td></tr></tbody></table>
If normal diagnostics do not lead to a correction, then perform the following A/C system checks.

Re-calibrate the actuators. Refer to Recalibrating Actuators in the HVAC System - Manual/Automatic sub-section of the Service Manual (SI Document ID #904666).
Inspect the lower A/C condenser deflector for proper installation. The deflector should be positioned at the lower part of the condenser and extend forward into the top of the front bumper and below the two fresh air intake holes.
Check the engine cooling fan clutch for proper operation. Refer to Fan Clutch Diagnosis in the Engine Cooling sub-section of the Service Manual (SI Document ID #774320).
If the vehicle is equipped with a front license plate, inspect for proper installation. If the license plate bracket is installed upside down, it will block part of the two fresh air intake holes in the bumper. When the license plate bracket is installed correctly, the writing on the back of the bracket will be upside down. Inspect for material between the radiator and condenser. Remove the top plate to confirm that there is no restriction. A radiator front filled with material will decrease condenser performance.
Some improvements have been found by lowering the A/C charge from 0.82 kg (1.8 lbs) to 0.73 kg (1.6 lbs).
Check the low pressure cycling switch for proper operation. The low pressure switch opens at 172-234 kPa (25-34 psi) , which stops compressor operation and closes when the low side pressure reaches 276-310 kPa (40-45 psi). This enables the compressor to turn back on. Important: Compressor clutch engagement cannot be used to determine the status of the low pressure switch. The low pressure switch is one of several inputs to the HVAC control module for A/C request authorization. A/C request is one of several inputs to the powertrain control module (PCM) that control A/C compressor clutch engagement.
Using a scan tool to monitor low pressure switch status while monitoring the low side pressure with the ACR 2000 at the service port and watch the pressure at which the switch opens/closes is imperative to successfully diagnosing the switch.

If the A/C performance has not improved after performing the above steps, replace the accumulator with P/N 89018601, using the procedure listed below. This new accumulator also requires the accumulator bracket, accumulator insulator and A/C suction hose to be replaced. (#ss3-1539443) Accumulator Replacement (#ss3-1539443)


Remove the suction hose mounting bolt from the A/C compressor.
Remove the suction hose from the compressor.
Remove the suction hose nut from the accumulator.
Remove the suction hose from the accumulator.
Remove the evaporator tube nut from the evaporator.
Remove the evaporator tube from the evaporator.
Disconnect the electrical connector from the A/C low pressure switch.
Remove the nut from the evaporator fitting.
Remove the accumulator bracket nut from the retaining stud.
Remove the accumulator.
Remove the retaining bracket bolt. This bolt must be reused for the new bracket.
Remove the insulator. One half of the insulator must be reused.
Install the new insulator and one half of the old insulator onto the new accumulator.
Install the new retaining bracket and bolt to the accumulator. Do not tighten at this time.
Add the PAG oil directly into the new accumulator that was removed during the recovery process plus an additional 90 ml (3 oz).
Install the new accumulator.
Install the accumulator bracket nut.
Tighten
Tighten the nut to 9 N·m (80 lb in).
Tighten the retaining bracket bolt.
Tighten
Tighten the nut to 10 N·m (89 lb in).
Install the nut to the evaporator fitting.
Tighten
Tighten the nut to 16 N·m (12 lb ft).
Install the evaporator tube to the evaporator.
Install the evaporator tube nut to the evaporator.
Tighten
Tighten the nut to 16 N·m (12 lb ft).
Install the new suction hose to the accumulator.
Install the suction hose nut to the accumulator.
Tighten
Tighten the nut to 16 N·m (12 lb ft).
Connect the electrical connector to the A/C low pressure switch.
Install the new suction hose to the compressor.
Install the suction hose mounting bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
(#ss4-1539443) Parts Information (#ss4-1539443)

<table border="1" width="100%"> <tbody> <tr> <th align="middle" valign="bottom"> Part Number
</th> <th align="middle" valign="bottom"> Description
</th></tr> <tr> <td align="middle" valign="center"> 89018601
</td> <td align="middle" valign="center"> Accumulator
</td></tr> <tr> <td align="middle" valign="center"> 15136596
</td> <td align="middle" valign="center"> Hose Assembly
</td></tr> <tr> <td align="middle" valign="center"> 15136597
</td> <td align="middle" valign="center"> Bracket
</td></tr> <tr> <td align="middle" valign="center"> 10372792
</td> <td align="middle" valign="center"> Insulator
</td></tr></tbody> </table> Parts are currently available from GMSPO.
(#ss5-1539443) Warranty Information (#ss5-1539443)

For vehicles repaired under warranty, use:
<table border="1" width="100%"> <tbody> <tr> <th align="middle" valign="bottom"> Labor Operation
</th> <th align="middle" valign="bottom"> Description
</th> <th align="middle" valign="bottom"> Labor Time
</th></tr> <tr> <td align="middle" valign="center"> D4702*
</td> <td align="middle" valign="center"> HVAC System Check
</td> <td align="middle" valign="center"> 0.6 hr
</td></tr> <tr> <td align="middle" valign="center"> Add:
</td> <td align="middle" valign="center"> To Replace Accumulator
</td> <td align="middle" valign="center"> 0.4 hr
</td></tr> <tr> <td align="middle" valign="center"> Add:
</td> <td align="middle" valign="center"> To Recover/Recharge A/C System
</td> <td align="middle" valign="center"> 0.5 hr
</td></tr></tbody> </table> *This a unique Labor Operation Number for use only with this bulletin. This number will not be published in the Labor Time Guide.

<table width="100%"> <tbody> <tr> <td align="left" width="778">GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
</td> <td align="middle" width="42">/engif/000/999/999/999999994.gif </td> <td align="middle" width="167">WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
</td></tr></tbody> </table> © Copyright General Motors Corporation. All Rights Reserved.
<form name="bottomNavForm"> <hr> <table align="center" width="100%"> <tbody> <tr> <td slign="LEFT" width="25%"><input onclick="JavaScript: history.back();" value="<- Back" name="back" type="button"> <input onclick="JavaScript: history.forward();" value="Forward ->" name="forward" type="button"> </td> <td align="middle" width="50%">Document ID# 1539443
2004 Chevrolet Chevy K Silverado - 4WD </td> <td align="right" width="25%"><input onclick='JavaScript: window.location.href = "/servlets/Feedback?ShtmlFile=1539443&btIdList=1"' value="Feedback" name="FeedBack" type="button"> <input onclick="JavaScript: window.print();" value="Print" name="print" type="button"> </td></tr></tbody></table></form>

I personally usually add about .2 of a pound to the label amount of R134

On mine they changed the orifice and lowered the charge by .2 from label. It did improve it, but not to where my 99 was. This was only after I called the 800 customer service number because the dealership gave me some bull**** chart that said if the OAT was 95 and the RH was XX then the cab should be at 80 degrees or something like that. Excuse # 2 was that it was a Diesel and had more heat in the stack. My response was that they should post the chart in the sales department because my brothers Ford and my neighbors Dodge both Diesels could make ice in there cabs.

You dont have a lot sand built up in the intercooler/condensor/radiator do you?

No, I cleaned and debugged the thing myself before it went back in the shop the second time for the fan clutch replacement after the new compressor, accumulator, orifice tube, and flush didn't fix it. I have the delphi compressor so the TSB you posted does not work.

I know a pusher fan won't push much air over the stack, but it's not like it needs alot more flow in my mind. I can drive it home with it blowing 62-65 out the center vent and put a light mist from the garden hose over the front of the truck and in 3 minutes it will be blowing 40F. If you see my post in the stack sealing thread you can see why the 2500HD sucks when compared to a 1/2 ton yukon XL (wifes truck) when it comes to air flow over the stack.

If you have access to the TSB please post the pictures of the fan as it sits on the condenser. Let me decide if I want to spend the money on it or not.

I'm sick of taking the truck back only to be told that crapy AC cooling is normal. If it only lowered the vent temp 5 degrees I would be happy.

The thing will freeze your nuts off (38-42) when OAT is 90F or below. So that tells me it's just a matter of getting a little more air flow over the condenser when the temps are hotter.

I was just mearly making some other suggestions...Really dont need the oversized bold print.

HERE IS A LINK TO THE TSB SECTION OF THE BOARD http://dieselplace.com/forum/forumdisplay.php?f=27

Here is the TSB anyway...Next time chill out. However once again, none of this is going to work for you. Will have to just figure out a fan that you can get to fit and wire it up, because all the wiring listed is also different, like I said, this TSB wont work for you.

A/C Not Cold Enough, A/C Blows Warm Air with Vehicle at Extended Idle (Install Auxiliary Electric Coolant Fan) #01-01-39-004A - (Dec 20, 2002)

A/C Not Cold Enough, A/C Blows Warm Air with Vehicle at Extended Idle (Install Auxiliary Electric Coolant Fan) 2002-2003 Cadillac Escalade
2000-2003 Chevrolet Suburban, Tahoe
2000-2003 GMC Yukon, Yukon XL
with 6.0L Engine (VINs U, N -- RPOs LQ4, LQ9)
This bulletin is being revised to add 2003 model year information and 2003 model year installation instructions. Please discard Corporate Bulletin Number 01-01-39-004 (Section 01 -- HVAC).
(#ss1-1215932) Condition (#ss1-1215932)

Some customers may comment that the A/C stops cooling and blows warm air when the vehicle is idling for an extended period of time such as sitting in traffic.
(#ss2-1215932) Cause (#ss2-1215932)

Inadequate airflow over the condenser may cause this condition.
(#ss3-1215932) Correction (#ss3-1215932)

The addition of an auxiliary fan in front of the condenser radiator assembly may help to alleviate this condition. The coolant fan will come on each time the A/C compressor is commanded on by the PCM. This fan will create a roaring sound when operating.
Follow the attached procedure to install an auxiliary electric cooling fan to the front of the condenser and radiator assemblies.
With the jumper harness, P/N 88880045, and connector kit, P/N 12126452, on the bench, perform the following modifications:

Using the electrical tool kit yellow handled tool, # 12014012-1 7J04848, remove the terminals and WHT wires from the connector of the connector kit, P/N 12126452.
Using your fingernail or a small screwdriver, spread the terminal wings that are over the weather pack seal.
Slide the blue weather pack seal onto the WHT wire in order to allow the removal of the metal terminal from both of the WHT wires. Save the blue weather pack seals.
Remove the green connector to relay locking tab of the jumper harness, P/N 88880045.
Disconnect the relay from the connector.
Remove the green TPA from the relay connector.
Remove the RED wire from cavity 87 of the relay connector.
Remove the electrical tape from each end of the conduit and the wires.
Identify the RED wire, with the small eyelet on the end, and pull this wire from the conduit. This is the wire that was in cavity 87 of the relay connector. By pulling on the end, the wire can be removed from the conduit quite easily.
Carefully strip the black insulator from the eyelet area of the RED wire you just removed from the conduit.
Cut the wire as close to the metal eyelet to wire crimp as possible.
Place one of the saved blue weather pack seals onto the RED wire (big end first).
Strip 5 mm (3/16 in) of the insulation from the end of the RED wire.
Using the proper crimping tool, install a terminal, P/N 12010182, to the RED wire.
To a piece of 14 or 16 gauge black wire about 178 mm (7 in) long, install the other saved blue weather pack seal from the other WHT wire (big end first).
Strip 5 mm (3/16 in) of the insulation from both ends of the BLK wire.
Using the proper crimping tool, install a terminal, P/N 12010182, to the end of the BLK wire with the blue weather pack seal.
On the other end of the BLK wire, install a ring terminal, P/N 02984172.
Slide a section of conduit, P/N 08919354, over the full length of the RED wire and secure with a wrap of electrical tape at both ends.
Insert the terminal of the RED wire into cavity B of the connector, P/N 12126452 (the one you removed the WHT wires from).
Insert the terminal of the BLK wire into cavity A of the connector, P/N 12126452 (the one you removed the WHT wires from).
Insert the terminal of the RED wire back into cavity 87 of the relay connector.
Inspect the wires going into the relay connector. On the bottom of the relay connector are corresponding numbers. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Number 30 and 87 should have RED wires in their cavities. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Number 86 should have a PPL wire. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Number 85 should be a BLK wire. </td></tr></tbody></table>
Measure 51 mm (2 in) from the base of the relay connector and place a wrap of electrical tape around the PPL and the RED wires, and then a couple wraps around the conduit (make it look like it did when you started).
Remove the relay-mounting bracket from the relay.
Place the relay-mounting bracket in a vise and straighten out the two 90 degree bends so that the bracket is straight.
Reinstall the bracket into the relay with the protruding bumps against the relay.
Remove the key from the lock cylinder.
Open the hood and install fender covers.
Remove the upper radiator baffle.
Remove the grille.
Remove the left fender to radiator core support brace.
Remove the left fender to cowl support.
Remove the battery and battery tray.
Remove the underhood electrical center covers.
Loosely install the bolt, which held the fender to radiator support, through the relay bracket and into the radiator support from which the bolt was removed.
Route the RED and PPL wires from the relay down to and under the PCM to frame bracket, along side the main harness and up to the right side of the underhood electrical center.
Lift the underhood electrical center and disconnect the Black C2 connector from the bottom of the underhood electrical center.
Locate the GRN wire in the underhood electrical center connector C2. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2000-2002 models, Cavity B3. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2003 models, Cavity A3. </td></tr></tbody></table>
Cut and remove the tie strap from around the wires of which the GRN wire is bundled. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2000-2002 models, Cavity B3. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2003 models, Cavity A3. </td></tr></tbody></table>
Remove the CPA for this section of the C2 connector.
Remove the terminal for the GRN wire from connector C2. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2000-2002 models, Cavity B3. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2003 models, Cavity A3. </td></tr></tbody></table>
Cut the terminal from the GRN wire removed from Connector C2. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2000-2002 models, Cavity B3. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2003 models, Cavity A3. </td></tr></tbody></table>
Strip 5 mm (3/16 in) of the wire insulation from the GRN wire removed from Connector C2. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2000-2002 models, Cavity B3. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">2003 models, Cavity A3. </td></tr></tbody></table>
Strip 5 mm (3/16 in) of the insulation from the PPL wire of the jumper harness.
Place the stripped portion of the GRN wire, removed from Connector C2, and the stripped portion of the PPL wire into a new terminal, P/N 12110842. <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">The wires must not protrude past the area of the crimp wings, or the CPA cannot be reinstalled. </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Using the proper tool, crimp the terminal around the wires. </td></tr></tbody></table>
Install the new terminal in the original cavity of the C2 connector.
Reinstall the CPA for this section of the C2 connector.
Install a new tie strap in the original location around the wires.
Re-position the electrical connector #2 to the underhood electrical center.
Tighten
Tighten the screw to 6 N·m(53 lb in).
Re-position the underhood electrical center into its proper location.
Remove the retainer (nut) securing the RED wire to the right side of the underhood electrical center. Place the eyelet from the fusible link/RED wire over the terminal and re-secure the retainer.
Tighten
Tighten the retainer to 9 N·m(80 lb in).
Re-install the battery tray.
Tighten
Tighten the battery tray bolts to 9 N·m(80 lb in).
Reinstall the battery, but do not hook up the battery cables.
Place the fender to radiator support bolt through the fender to radiator support, the relay ground (BLK wire), and then into the relay bracket in a way which positions the relay under the top radiator support.
The RED wire you installed the new convoluted tubing to will be routed to the front of the condenser assembly in the following locations: <table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Under the radiator support upper bar </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Between the radiator and the rubber seal </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Between the condenser and the power steering oil cooler </td></tr></tbody></table>
<table border="0"> <tbody> <tr> <td valign="top"> - </td> <td valign="top">Behind the transmission oil cooler </td></tr></tbody></table>
Position the fan assembly to the front of the vehicle, to the right of the hood latch assembly. The bottom leg of the fan assembly will go to the front side of the hood latch support cross beam (the angle brace to which the transmission oil cooler is attached). Mark the location of the hole that needs to be drilled in the hood latch support cross beam.
Place a scrap piece of material between the cross beam and the condenser in order to protect the condenser from the drill bit.
Drill a 6.4 mm (1/4 in) hole at the marked location.
Mount the fan assembly to the cross beam with a rivet, P/N 9436175.
Connect the wiring harness to the fan motor connector.
Remove the bolt from the right end of the cross beam of the hood latch, install the eyelet of the black wire, and reinstall the bolt.
Place a tie strap around the cross beam and wiring harness on each side of the transmission cooler and one on the A brace left leg where the wiring harness passes over it.
Reinstall the grille.
Remove the upper fan support bracket. Place the bracket in a vise to straighten the bends in the two legs of the bracket.
Reinstall the bracket to the fan assembly.
Carefully bend the two legs of the fan assembly bracket. Starting with the left leg, bend it so the leg comes into contact with the radiator support top bar.
Then fit the right leg to the radiator support top bar.
When you feel the legs have been properly formed, try to re-install the upper radiator baffle, do not install the retainers, when satisfied everything will fit properly. Drill two 6.4 mm (1/4 in) holes into the upper radiator support and install a rivet in each hole in order to retain the upper bracket of the fan assembly to the radiator upper bar.
Make sure the fan spins freely. If not, adjust the mounting to allow the fan to spin freely.
Reinstall the upper radiator baffle.
Reinstall the underhood electrical center covers.
Remove the bolt supporting the new relay and place the bolt through the support brace, the ground wire for the relay, and then the relay bracket. Reinstall the bolt into the radiator support, then reinstall the bolt in the fender end.
Tighten
Tighten the brace bolts to 25 N·m(18 lb ft).
Connect the battery cables.
Tighten
Tighten the battery terminal bolts to 17 N·m(13 lb ft).
(#ss4-1215932) Parts Information (#ss4-1215932)

<table border="1" width="100%"> <tbody> <tr> <th align="middle" valign="bottom"> Part Number
</th> <th align="middle" valign="bottom"> Description
</th> <th align="middle" valign="bottom"> Qty
</th> <th align="middle"> Sold as package of
</th></tr> <tr> <td align="middle" valign="center"> 02984172*
</td> <td align="middle" valign="center"> Terminal, Ring
</td> <td align="middle" valign="center"> 1
</td> <td align="middle" valign="center"> 10
</td></tr> <tr> <td align="middle" valign="center"> 08919354
</td> <td align="middle" valign="center"> Conduit
</td> <td align="middle" valign="center"> 2 feet
</td> <td align="middle" valign="center"> 20 feet
</td></tr> <tr> <td align="middle" valign="center"> 9436175
</td> <td align="middle" valign="center"> Rivets
</td> <td align="middle" valign="center"> 3
</td> <td align="middle" valign="center"> 20
</td></tr> <tr> <td align="middle" valign="center"> 12110842 *
</td> <td align="middle" valign="center"> Terminal, Wiring
</td> <td align="middle" valign="center"> 1
</td> <td align="middle" valign="center"> 1
</td></tr> <tr> <td align="middle" valign="center"> 12126452
</td> <td align="middle" valign="center"> Kit, Connector
</td> <td align="middle" valign="center"> 1
</td> <td align="middle" valign="center"> 1
</td></tr> <tr> <td align="middle" valign="center"> 12337820
</td> <td align="middle" valign="center"> Strap, Black Tie
</td> <td align="middle" valign="center"> 3
</td> <td align="middle" valign="center"> 10
</td></tr> <tr> <td align="middle" valign="center"> 12010182* or 12058989* or 12354970*
</td> <td align="middle" valign="center"> Terminal, Wiring
</td> <td align="middle" valign="center"> 2
</td> <td align="middle" valign="center"> 10
</td></tr> <tr> <td align="middle" valign="center"> 15717423
</td> <td align="middle" valign="center"> Fan Asm - Aux Eng. Cool
</td> <td align="middle" valign="center"> 1
</td> <td align="middle" valign="center"> 1
</td></tr> <tr> <td align="middle" valign="center"> 88880045
</td> <td align="middle" valign="center"> Kit, Harness
</td> <td align="middle" valign="center"> 1
</td> <td align="middle" valign="center"> 1
</td></tr></tbody> </table>

Cobra,
Thanks very much for all the info. :Handshake

I love the excuses some of these places come up with when they cant fix something.

Instead of just being straight and telling you they know there is a problem and GM is working on a solution for it, they have to come up with some story.

My AC line resently developed a leak and had to be replaced............it wa sthe Hi/Low line that comes from the back of the AC Compressor..........

Anyway the AC worked good before the hose incident...........but now after the hose was replaced and the system charged it will cause condensation on the outside windows on a 95-100 OAT day when idling...........when moving down the road it will get so cold that the fan has to be on 2 or 3 or you freeze..........

I looked at my receipt and it said 1.5 lbs of 134 freon..........

just thought I would let you guys know they do work good...........maybe your AC/Heater damper is remaining partially open or you are getting heat from the heater core into the ductwork...........

That was one of the main reasons I DO NOT WANT Auto Climate controls.........do any of you that have a problem have auto climate control ?????
.
.
.

Here is the TSB anyway...Next time chill out. However once again, none of this is going to work for you. Will have to just figure out a fan that you can get to fit and wire it up, because all the wiring listed is also different, like I said, this TSB wont work for you.


Parts Information (http://#ss4-1215932)

<TABLE width="100%" border=1><TBODY><TR><TH vAlign=bottom align=middle>Part Number

</TH><TH vAlign=bottom align=middle>Description

</TH><TH vAlign=bottom align=middle>Qty

</TH><TH align=middle>Sold as package of

</TH></TR><TR><TD vAlign=center align=middle>02984172*

</TD><TD vAlign=center align=middle>Terminal, Ring

</TD><TD vAlign=center align=middle>1

</TD><TD vAlign=center align=middle>10

</TD></TR><TR><TD vAlign=center align=middle>08919354

</TD><TD vAlign=center align=middle>Conduit

</TD><TD vAlign=center align=middle>2 feet

</TD><TD vAlign=center align=middle>20 feet

</TD></TR><TR><TD vAlign=center align=middle>9436175

</TD><TD vAlign=center align=middle>Rivets

</TD><TD vAlign=center align=middle>3

</TD><TD vAlign=center align=middle>20

</TD></TR><TR><TD vAlign=center align=middle>12110842 *

</TD><TD vAlign=center align=middle>Terminal, Wiring

</TD><TD vAlign=center align=middle>1

</TD><TD vAlign=center align=middle>1

</TD></TR><TR><TD vAlign=center align=middle>12126452

</TD><TD vAlign=center align=middle>Kit, Connector

</TD><TD vAlign=center align=middle>1

</TD><TD vAlign=center align=middle>1

</TD></TR><TR><TD vAlign=center align=middle>12337820

</TD><TD vAlign=center align=middle>Strap, Black Tie

</TD><TD vAlign=center align=middle>3

</TD><TD vAlign=center align=middle>10

</TD></TR><TR><TD vAlign=center align=middle>12010182* or 12058989* or 12354970*

</TD><TD vAlign=center align=middle>Terminal, Wiring

</TD><TD vAlign=center align=middle>2

</TD><TD vAlign=center align=middle>10

</TD></TR><TR><TD vAlign=center align=middle>15717423

</TD><TD vAlign=center align=middle>Fan Asm - Aux Eng. Cool

</TD><TD vAlign=center align=middle>1

</TD><TD vAlign=center align=middle>1

</TD></TR><TR><TD vAlign=center align=middle>88880045

</TD><TD vAlign=center align=middle>Kit, Harness

</TD><TD vAlign=center align=middle>1

</TD><TD vAlign=center align=middle>1

</TD></TR></TBODY></TABLE>

Thanks Cobra, I was looking for two things from the TSB 1) the part # of the fan used in the kit which you have provided (and I can get for about $60 thru "a friend of a friend"), and 2) I would really like a diagram (if there is one) from the TSB showing the location of the fan on the front of the truck so I can tell the relative size of the fan. No one around here has one in stock so I can't see what size it is before buying one. If it's a little 5" fan then no I don't want to fool with it. I tried the hyperlinks in the TSB but I get some message "page cannot be displayed"?

Thanks again.

My AC line resently developed a leak and had to be replaced............it wa sthe Hi/Low line that comes from the back of the AC Compressor..........

Anyway the AC worked good before the hose incident...........but now after the hose was replaced and the system charged it will cause condensation on the outside windows on a 95-100 OAT day when idling...........when moving down the road it will get so cold that the fan has to be on 2 or 3 or you freeze..........

I looked at my receipt and it said 1.5 lbs of 134 freon..........

I know of the TSB about having too much freon on the 2003 trucks, but does this trick work on the 2002's as well? I have a Dephi compressor.
When the system was evacutated it was .2 lbs low (had only 1.6lbs, not 1.8 called for) They put back in 1.8lbs.

just thought I would let you guys know they do work good...........maybe your AC/Heater damper is remaining partially open or you are getting heat from the heater core into the ductwork...........

I thought that might be an issue also so I bought two "hose Pincher" tools and pinched off the two heater hose lines going into the fire wall. Had absolutely no effect at all....... drove it like that for an entire day.

That was one of the main reasons I DO NOT WANT Auto Climate controls.........do any of you that have a problem have auto climate control ?????
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see above response in blue text

There are no diagrams at all. That is all we get. The kit didnt fit real well in the one that I remember seeing one other guy do before.