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6.5L Diesel Engine Discuss the 6.5 GM diesel engine & associated components. Automatic transmission questions & problems belong in the 4L80/85 - 4L60E - 6L90 Transmission Forum is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
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Old 09-18-2012, 02:01 AM   #11 (permalink)
Grit dog
Diesel Head
Join Date: Feb 2006
Location: Black Diamond, WA
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Haha yeah I've read a bunch of your posts. Very helpful.
So I'm gettin no vac to the WG actuator w engine running. Think I have f d up solenoids for the WG and egr. As there's strong vac off the pump.
I'll try the wd40 trick on all the solenoids and hook the vac pump up direct to the wg actuator to make sure it's not popped then is a few new solenoids maybe.

Oh well, after running fine for 2 dAys except the egr codes and low boost I got fuel codes again. I need to repl the rubber fuel lines and hopefully clear up the stalling first.
Then I'll tackle the egr stuff.
Good thing I only gave a grand for this truck cause I forgot about all the pos ancillary things with these engines.

Sold now: '02 2500HD, CC/SB, 4x4, LS, DMax/Alli, Edge Juice/Attiude
Sold: '94 Chevy 1500 Z71, "S" VIN, 6.5, bone stock, Relocated PMD, some miles
'07 Dodge Mega, 4x4, SLT, 5.9/G56,3.73's, Southbend OFE, Bullydog
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Old 09-18-2012, 11:31 AM   #12 (permalink)
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Join Date: Feb 2010
Location: Northesat Nevada
Posts: 2,972
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PS I know the gent that wrote yr quote above LOL!
You mean my "Earth First We will mine the rest of the planets later" quote ?
The guy must be old as the hills like me LOL I first rember seeing it on bumper stickers around my parts about 20 years ago. I would like to meet the guy. I work in the largest open pit gold mine in North America.

ICBW, but I think what you're describing is the procedure for the OBDII trucks, 96? and up. Or clear them with a scan tool.
I described the only procudures to clear codes for OBD1 That I have ever used. I have heard of the pedal method but I dont think it clears all the hard cods set. Only the soft codes. But i may be wrong on that. Cutting power to the PCM is the best way I know to clear codes.
With OBD2 the only way to clear codes is with a scanner. Cutting power to the PCM will not clear codes.

The beauty of the Second Amendment is that it will not be needed until they try to take it

If Americans ever allow banks to control their currency. First by deflation then inflation. The banks will deprive the people of all property. Until their children wake up homeless.
1998 GMC K1500 WT, 6.5 TD. 80,000 miles. Auto, 3.73 gears. Remote PMD mounted on the radiator support. KOJO tune WOW! Carter HD lift pump. Feed the beast, GM8 turbo with Hurricane impeller. K&N filter. Ported, gasket matched upper intake. Leroy's braded stainless steel oil lines.
New Bosch injectors. Flow matched 2200 lbs pop
3 1/2" custom Aero turbine exhaust. Nutered Cat
2" Lift RS5000 Shocks. 285 X 17 Bridgestone AT summer tires. 12.50 x 33 x 15 Procomp MTs winter. Powertrax No slip locker in rear.

Last edited by Tommygunner; 09-18-2012 at 11:33 AM.
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Old 09-18-2012, 07:36 PM   #13 (permalink)
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Join Date: Oct 2009
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Dog here's an easy cheap interim fix I have used in a pinch before buy a wooden screen door spring at Ace hardware and attach it to the bottom of the waste gate arm stretch it tight towards the front of the turbo and attach it to hold pressure on the gate. I had to use this spring from my bros cabin up north to get home. This setup on my truck netted me about 8lbs boost at WOT and cruise was running at about 3 lbs. I keep the spring with me now in the truck along with my spare PMD and few extra fuses. Kinda like a 6.5 emergency travel kit.
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1995 1500 Silverado 6.5TD 2WD Ext Cab 246K, FSD cooler bumper mount, Buddy 3 pos chip, DE 4" exhaust, K47 with F intake

1995 Tahoe 6.5TD 217K Buddy chipped cat & muff delete

1994 1500 Silverado 6.5TD 2WD RCLB 208K Buddy chip F intake, daily work commuter 21mpg avg

2005 FLHTC 107 Twin Cam Tman 625 cams, 10.1 CR, Mik 45, DTT map, 3.37 final, E1 clutch & VPC with SE 6 sp, SnS roller rockers Bub 7 2 into 1 exhaust, 120Tq & 120Hp

1995 FXD 80 EVO V Thunder 2015 cam, Mikuni 42, SE slip ons, 80Tq & 70Hp

Last edited by crankme69; 09-18-2012 at 07:43 PM.
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