600 miles on my 2005 D/A. I have a bad belt squeak at cold
start-up that goes away above idle speeds and goes away completely
after warm-up.



Anyone else with an '05 having a similar issue???



I know the 2004.5's had an issue with a bad run of power steering pump
brackets causing a squeak. I can't imagine this being same
problem though with an '05???



Rob

Mine's got it as well, Rob. It's pretty darned annoying and embarrasing!



I haven't done any research on it yet. Prolly try to hold out for Goodyear Gatorback belt availability.

Mine's got it as well, Rob. It's pretty darned annoying and embarrasing!



I haven't done any research on it yet. Prolly try to hold out for Goodyear Gatorback belt availability.








Have you taken it to the stealer? I'm gonna see what he has to
say. Eventually there will be a Gatorback in my future but there
is no way in H*** that we should have to do that on a brand new
truck. Hard to duplicate for the dealer unless it's left there
overnighthttp://www.dieselplace.com/forum/smileys/smiley19.gif



I've done some research - unable to find any info. That's why I'm trying to see who all is having problems.



Thanks for the response!



Rob

Mine's got it as well, Rob. It's pretty darned annoying and embarrasing!



I haven't done any research on it yet. Prolly try to hold out for Goodyear Gatorback belt availability.








Have you taken it to the stealer? I'm gonna see what he has to
say. Eventually there will be a Gatorback in my future but there
is no way in H*** that we should have to do that on a brand new
truck. Hard to duplicate for the dealer unless it's left there
overnighthttp://www.dieselplace.com/forum/smileys/smiley19.gif



I've done some research - unable to find any info. That's why I'm trying to see who all is having problems.



Thanks for the response!



Rob





Rob:



My vehicles just flat DON'T go back to a dealer for anything, unless
it's REALLY expensive. Don't trust their service departments or
technicians. I have an advantage over most people because I own an
independent auto repair shop. I buy most parts at WD or below, and pay
my techs to do the repairs out of my own pocket. As an example - my
wife's '03 24K mile Yukon XL Denali lunched the A/C compressor on July
4th. I purchased the updated (per a GM TSB) compressor, accumulator,
orifice tube, belt tensioner and belt at cost and paid one of my techs
to repair it. Cost me about $600.00, but saved me a week of being
without her car and God knows what would have been stolen, scratched,
greasy or just fouled up if I had taken it to the stealer for repair.



I have purchased fourteen NEW GM vehicles in the past 22 years, and not
one has EVER been back to the dealer for anything. Hope that doesn't
change!



Edited by: Lloyd-TX

Might simply be the belt. Had a 8.1 that squeeked bad. Started at about 15K. Dealer replaced and no problems afterward. Got rid of vehicles in Jul '04 when it had 47K on it. Picked up a '04.4 D/A and it's OK so far.

Lloyd-TX,



Unfortunately we are not all as lucky as you. My vehicles go back
to the dealer under warranty only. From then on it's all up to
Mr. DIY'erhttp://www.dieselplace.com/forum/smileys/smiley1.gif



Gonna slide by the dealer - I'll let you all know of the conclusion.

I've had my 04 LLY to the dealer twice complaining about the squeaking belt. Dealer first told me(2 days after purchase) "those darn detailers must have gotten some armor all on the belt". Like you said, it's hard to repeat at the dealer since it is already warmed up. VERY annoying!!!

Mine did the same thing, Squeaked first thing in the morning and the
rest of the day it was quiet, Took it to the dealer who replaced the
belt on the spot under warranty, So Far so good !!

My 05 is doing the same thing... one dealer claimed it was "turbo whine" but it sure sounds like a belt squeal to me. Another dealer said "it doesn't sound any different from any other Duramax. My squeal is faint and starts just above 1K RPM. I read in another forum that there was a similar problem with the 8.1L gasser (GM called it "belt whine") caused by the pulley on the power steering pump being pushed on too far on the shaft causing it to be out of alignment with the other pulleys.

Mine's got it as well, Rob. It's pretty darned annoying and embarrasing!

I haven't done any research on it yet. Prolly try to hold out for Goodyear Gatorback belt availability.



Have you taken it to the stealer? I'm gonna see what he has to say. Eventually there will be a Gatorback in my future but there is no way in H*** that we should have to do that on a brand new truck. Hard to duplicate for the dealer unless it's left there overnighthttp://www.dieselplace.com/forum/smileys/smiley19.gif

I've done some research - unable to find any info. That's why I'm trying to see who all is having problems.

Thanks for the response!

Rob


Rob:

My vehicles just flat DON'T go back to a dealer for anything, unless it's REALLY expensive. Don't trust their service departments or technicians. I have an advantage over most people because I own an independent auto repair shop. I buy most parts at WD or below, and pay my techs to do the repairs out of my own pocket. As an example - my wife's '03 24K mile Yukon XL Denali lunched the A/C compressor on July 4th. I purchased the updated (per a GM TSB) compressor, accumulator, orifice tube, belt tensioner and belt at cost and paid one of my techs to repair it. Cost me about $600.00, but saved me a week of being without her car and God knows what would have been stolen, scratched, greasy or just fouled up if I had taken it to the stealer for repair.

I have purchased fourteen NEW GM vehicles in the past 22 years, and not one has EVER been back to the dealer for anything. Hope that doesn't change!




God knows what would have been stolen, scratched, greasy or just fouled up if I had taken it to the stealer for repair.



What the hell kind of comment is that!?! You don't think those things happen at independent shops?!? If you are saying that a vehicle has never left your shop greasy, scratched or fouled up, I don't beleive it for a second. I hope you don't need any updated calibrations for any of the modules on your truck because I would like to know how you'll get them without going to the "stealer". I take pride in what I do, and I am offended by what you have said about the "stealers", especially coming from someone with an automotive background, I think that is an ignorant thing to say. Working on GM's everyday, along with the other technicians in my shop, I know that there is no way your shop can properly diagnose and repair the things that we can at the dealer. You just simply don't have the equipment or training that is available to us. I know you don't have the latest data recorder, or the latest version of Tech2 software. Thats just a couple of examples. I'm not saying that there are no crappy dealers, because I know there are, but I wouldn't go on here and say that all independent shops suck, but thats just me. I'm going to check on the prices for the parts you named in the above repair, because I DO get parts at cost, and I'll be very surprised if they are under $600.

http://www.dieselplace.com/forum/uploads/LloydTX/2004-10-06_045855_Denali_AC_repair_small.jpg

Mine's got it as well, Rob. It's pretty darned annoying and embarrasing!

I haven't done any research on it yet. Prolly try to hold out for Goodyear Gatorback belt availability.



Have
you taken it to the stealer? I'm gonna see what he has to
say. Eventually there will be a Gatorback in my future but there
is no way in H*** that we should have to do that on a brand new
truck. Hard to duplicate for the dealer unless it's left there
overnighthttp://www.dieselplace.com/forum/smileys/smiley19.gif

I've done some research - unable to find any info. That's why I'm trying to see who all is having problems.

Thanks for the response!

Rob


Rob:

My
vehicles just flat DON'T go back to a dealer for anything, unless it's
REALLY expensive. Don't trust their service departments or technicians.
I have an advantage over most people because I own an independent auto
repair shop. I buy most parts at WD or below, and pay my techs to do
the repairs out of my own pocket. As an example - my wife's '03 24K
mile Yukon XL Denali lunched the A/C compressor on July 4th. I
purchased the updated (per a GM TSB) compressor, accumulator, orifice
tube, belt tensioner and belt at cost and paid one of my techs to
repair it. Cost me about $600.00, but saved me a week of being without
her car and God knows what would have been stolen, scratched, greasy or
just fouled up if I had taken it to the stealer for repair.

I
have purchased fourteen NEW GM vehicles in the past 22 years, and not
one has EVER been back to the dealer for anything. Hope that doesn't
change!




God knows what would have been stolen, scratched, greasy or just fouled up if I had taken it to the stealer for repair.



What the hell kind of comment is that!?! You don't think those
things happen at independent shops?!? If you are saying that a vehicle
has never left your shop greasy, scratched or fouled up, I don't
beleive it for a second. I hope you don't need any updated calibrations
for any of the modules on your truck because I would like to know how
you'll get them without going to the "stealer". I take pride in what I
do, and I am offended by what you have said about the "stealers",
especially coming from someone with an automotive background, I think
that is an ignorant thing to say. Working on GM's everyday, along with
the other technicians in my shop, I know that there is no way your shop
can properly diagnose and repair the things that we can at the dealer.
You just simply don't have the equipment or training that is available
to us. I know you don't have the latest data recorder, or the latest
version of Tech2 software. Thats just a couple of examples. I'm not
saying that there are no crappy dealers, because I know there are, but
I wouldn't go on here and say that all independent shops suck, but
thats just me. I'm going to check on the prices for the parts you named
in the above repair, because I DO get parts at cost, and I'll be very
surprised if they are under $600.



Socaldieseltech:



First - my most humble apologies for my dealership and dealer
technician comments. That comment WAS ignorant! As you said, being in
the repair business what I SHOULD have said is that there are good AND
bad dealership service departments and techs, just as there are good
AND bad independent automotive repair shops. I must however state
that - in my opinion, and the opinion of the great majority of
our customers - the quality of repair work and overall customer
satisfaction at MOST independent repair shops far exceeds that at MOST
dealership service departments. Also, if a vehicle is ever soiled or
damaged while in our care, which is EXTREMELY rare, we own up to it and
take care of the problem - without question.



Sec

socaldieseltech & Lloyd-TX,



You should both be proud of yourselve's. Sounds like you both take pride in your work http://www.dieselplace.com/forum/smileys/smiley32.gif



Albeit it makes for interesting reading - how about getting back to my belt / squeak problem.http://www.dieselplace.com/forum/smileys/smiley36.gif



Truck is at the dealer right now. Will be interested in what they
have to say. Oh yea - one other problem. The glue that
holds the headliner up tight to the top of the cab is not
holding. Headliner sags slightly.

I'm with skoryaro2 in saying that you both seem very honest and concientious in your work. I wish I had the choices of both your shops here locally, however I DON'T. One question for Lloyd-TX, can you perform WARRANTY work for a GMC truck? Those of us who are totally oblivious to the high-tech world of modern diesels have almost been forced to obtain the factory extended warranty since we must "trust" someone else to treat us fairly. I'm not saying that my dealer has been unjust, but to tell you the truth, it is not even the SAME dealer anymore so what do I know! 2 weeks after my purchase, the dealership was gobbled up by one of the "Big Name" conglomerates that we are all so familiar with. Both times (one time at the old, and one time at the new)I took my truck in to "inquire" about the belt squeak, I was summarily brushed off as a "whiner"... Apparently after reading some of the posts here, I find out that there was a KNOWN problem with these belts. Maybe these guys didn't know, maybe they did not care, either way it still SQUEAKS... BTW, my headliner sags as well, I guess the same guy was on belts and glue that day.

Hey guys, I checked on your belt squeek today and there is a PI on this and it involves changing the A/C compressor-P/S pump mounting bracket. There is a part number in the PI. Sorry I didn't get the #'s for you maybe tomorrow.


Lloyd-TX, this is what I am talking about, how would you know today if someone came in with a truck and had a belt squeek that it needs a mounting bracket? You wouldn't. You would throw a "gatorback" on it and ship it. I'll admit that my knowledge of other vehicles and their systems is limited, for instance I don't know much about the new powerstroke or the cummins. But how can someone at an independent shop be as proficient and knowledgeable as a dealership technician who works on the same types of vehicles daily? You can't be an expert on every vehicle that rolls in the drive. Its like going to a general practitioner for brain surgery. So I'll get of my soapbox, but I can appreciate the fact that you did say that what you said was wrong. I did check on the prices for the A/C parts, but I didn't realize before posting that those were aftermarket parts you used. If I had known they were aftermarket I wouldn't doubt it for a minute. Dealer cost was about $372, and I didn't include a belt. Wholesale was about $526. Anyway, I think that your shop sounds great and it sounds like your community thinks so too! Congrats on that, and like I said about your belt squeek, theres a PI for a bracket.

So, do I simply take the truck to the dealership and say there is a "PI" on the powersteering and A/C pump bracket? I pretty much can be sure they will tell me "oh don't worry, it'll go away when you get 10k or 20k miles on it.... I guess I will just have to live with a $40k truck that sounds like a 82 Ford Galaxy when idling... Thanks though for checking.





BTW, the extra I paid for the 6yr/100k mile warranty is not sounding like such a "bargain" after all.....

Hey guys, I checked on your belt squeek today and there is a PI on
this and it involves changing the A/C compressor-P/S pump mounting
bracket. There is a part number in the PI. Sorry I didn't get the #'s
for you maybe tomorrow.



Refresh my memory please as to what a "PI" is. Also I thought
that the bad run of power steering brackets were for the "04's or does
it include some of the '05's also.



I would appreciate any info. Dealer's solution was to put a new belt on
but I still think there is another underlying cause. How do 150K
belts go bad in 500 miles? Time will tell.



Rob

I'll put up more info today.

Thank-you!

This is for a 2004, but check your build date.
<H1>04 6.6 LLY Accessory Drive Belt Chirp Noise at Cold Idle - kw diesel squeak squeal pulley wear ac compressor bracket alignment power steering pump #PIP3138 - (Sep 15, 2004)</H1>


04 6.6 LLY Accessory Drive Belt Chirp Noise at Cold Idle


.


The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI.<A name=ss1-1549886><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549886#ss1-1549886" target="_blank">
<H5>Condition/Concern:</A></H5>


Customer concern may be a accessory drive belt chirp, squeal, or squeak noise at idle. The noise may be reduced or gone after the engine warms up. Important: It should be noted that a chirp noise on engine shutdown is normal for a diesel engine. No repairs should be attempted for this condition.


Early model 2004 C/K trucks, with a 6.6L LLY engine produced before June, 2004 may have an a/c compressor/power steering pump mounting bracket that is machined slightly out of specification. This bracket could cause a misaligned power steering pump. If the power steering pump is misaligned, it will force the accessory drive belt to run farther inboard on the fan pulley. <A name=ss2-1549886><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549886#ss2-1549886" target="_blank">
<H5>Recommendation/Instructions:</A></H5>

<LI =1>Follow the published SI diagnostics for drive belt chirping.
<LI =1>Verify power steering pulley is properly pressed on power steering pump shaft.(Use SI information for power steering pulley replacement.)
<LI =1>If no other concerns are found replace the a/c compressor/power steering pump mounting bracket with GM part number #97362175. The service brackets have been produced to the correct specifications. </LI>


Important: Please follow SI instructions for Air Conditioning (A/C) Compressor and Power Steering Pump Mounting Bracket Replacement. Installation procedures and torque specifications are critical during this repair.


.


Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.<A name=ss3-1549886><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1549886#ss3-1549886" target="_blank">
<H5>Models:</A></H5>


(2004 Chevrolet Silverado, GMC Sierra 2500 HD and 3500 trucks with the 6.6 LLY diesel)


.

300 Miles on the new belt - no squeak yet (knock on wood)

300 Miles on the new belt - no squeak yet (knock on wood)




Good news, but as I recall my belt didn't start squeaking until the truck had about 300-400 miles on it.



Keep us informed!



BTW, socaldieseltech - ALL of the A/C parts we used on my wife's Denali
ARE genuine GM parts, but we bill them out under the AC-Delco "15-"
part numbers. The belt and tensioner were Gates maufactured. Just a FYI.

300 Miles on the new belt - no squeak yet (knock on wood)




Good news, but as I recall my belt didn't start squeaking until the truck had about 300-400 miles on it.



Keep us informed!






Mine oringinally started at 400-500 miles so that's about were I'm at now - I keep crossing my fingers at every cold start.

Update: 500 miles on new belt - no squeak yet (fingers are still crossed)

1700 miles on my 05' and it just started. I used some belt dressing hoping it would go away, (only temperary) no bueno ! Same symtoms as everybody else, squeels in the morning, and after it warms up nice and quiet. http://www.dieselplace.com/forum/smileys/smiley11.gif Does the bracket issue apply for the 05 ?

1700 miles on my 05' and it just started. I used some
belt dressing hoping it would go away, (only temperary) no
bueno ! Same symtoms as everybody else, squeels in the morning, and
after it warms up nice and quiet. http://www.dieselplace.com/forum/smileys/smiley11.gif Does the bracket issue apply for the 05 ?



I don't believe it applies to the '05's (mine was built after the TSB).



I have about 800 miles on the new belt - no noise yet.

What an annoyance.


Skoryaro2,


Does your serpentine belt ride up (towards engine) against your Fan Pulley. Mines not centered very well.


http://www.dieselplace.com/forum/uploads/HayBay/2004-10-29_124403_RESIZEDbelt.jpg

HAYBAY,



I will check tomorrow and post a reply. BTW when my squeal first
started I tried belt dressing and it made it worse. FWIW the
dealer said not to use anything on the belts.

HayBay,



Checked on my belt. It is positioned exactly the same as yours is
as per your posted pic. I know have 1200 miles on the new belt -
no squeal yet.



Hope this helps!



Rob

Yes that helps skoryaro2



Thanks for checking. I think I will just buy a new belt and try that. I dont want to waste my time with the Service Manager, My first impression of him was not good.


Next purchase , I am going to ask the dealership to introduce me to their Service Manager and Head Diesel Mechanic before I buy.

I started getting the belt chirp about 2 weeks ago. I have about 6500 miles. Took to dealer, even gave them the printout that talked about the out of spec bracket, in the end they replaced my water pump and the noise is gone. Hopefully that was the real problem.

My chirp is starting to come back again with 1900 miles on the new belt
- only does it on below freezing temp.'s and stops when the engine
warms.



I started getting the belt chirp about 2 weeks
ago. I have about 6500 miles. Took to dealer, even gave
them the printout that talked about the out of spec bracket, in
the end they replaced my water pump and the noise is gone.
Hopefully that was the real problem.



I'd have to say it is not water pump related because the new belt cured it for 1900 miles.

Had no squeeking when in NV. Humidity about non-existent. Got back into FL and the air was "wet". Get a bit of a squeek for about 3 or 4 minutes after the truck has set for a day or two. Humidity is probably the problem if the squeek stops when things get warmed up. This humid air is only good for bacteria, mildew and little things that bite in the night.

Mine has a slight chirp at shutdown at 1300 miles...quiet at start-up at 55-60 degree weather.

The slight chirp at shutdown is considered normal (I think someone posted the TSB on it here somewhere). The engine stops spinning alot faster than the belt driven accessories do when you shut it down so the belt acts as a brake for the accessories causing it to chirp.Edited by: EricM

Its no problem at all... I would take that over 3 minutes of squeeking...