× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 25, 2010
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
2004 Cadillac CTS 3.6L Power Locks & Windows VIN: 1G6DM57714
Hello All. This Cadi came in w/door locks & windows inoperative. The 2 rear windows make a slight grunt noise w/switches in down position. This car is wet in the rear floorboard & trunk. All locks and windows work when commanded by Tech 2. The DDCM has a B3832...
1993 Chevrolet Corvette 40th Anniversary Edition 5.7L engine VIN: 1G1YY23P0P
This car was brought in with a shake at 3000 rpm and above. The customer had ignition & balancer replace at a Chevy dealer and the problem is still present. I was able to determine the shake is a vibration, the engine is not misfiring. I thought it was possibl...
2006 Chevrolet Optra LS 2.0L cylinder head VIN: Z16K287877
hi doing a head gasket on this 06 optra 2.0 dohc and my shop key has no info. i would like torque specs hope someone can help. thanks mike
2006 Chevrolet Silverado 3500 LS 6.6L starter VIN: 1GCHK23D96
noise from starter during starter overrun there is a distinct pinging metalitic noise . we replaced the flex plate and starter but the noise has not gone away the starter fits in a machined fixed opening so there is very little adjustment .
2002 GMC Yukon XL 1500 SLT 5.3L 2-1 Down Shift VIN: 1GKEC16Z42
This 4l60E on a 2-1 down shift hesitates briefly before going into 1st and bangs into gear. This condition only happens at very low speeds. No codes are stored in PCM. I shifted it with my scanner several times back and forth and the outcome was the same. If t...
2004 GMC C5500 Topkick C5C042 6.6L connecting rod VIN: 1GDE5C1184
i need torque specs on the connecting rod bolts and the cylinder head bolts for this engine any help will be great! thanks, marc
1995 Oldsmobile Cutlass Supreme 3.1L No Start VIN: 1G3WH52M7S
I need your help on this car,the problem is engine wont start so I started checking fuses,the fuse for fuel injection is blown but it blows right away as soon as i make an attemp to install one,tried to disconnect sensor wires one by one but the fuse still blo...
1996 Pontiac Bonneville SE 3.8L Blend door VIN: 1G2HX52K8T
Just wondering if any GM guys have seen this. Before repair mode doors would not change, replaced programmer and blend door accuator with good used one? Now mode doors change like they are supposed to but blend door works backwards, cold is hot and hot is cold...
2001 Pontiac Firebird Trans Am 5.7L turn signals VIN: 2G2FV22G91
This car uses the front turn signal filament part of the bulbs for turns signals and daytime running lights. After two day's of driving the bulbs burn out and are blackened. bulb# 3457 power and ground circuits check good for body and engine. power and groung ...
2001 Saturn L300 3.0L Passlock System VIN: 1G8JW52R41
Hey guys and girls, this one is killing me. The car came into the shop as a crank/no-start with the customer requesting we replace the CKP with information found on the internet. Replaced CKP per request, vehicle still crank/no-start. Customer asked for diagno...
2004 Saturn Ion-1 2.2L ext lights,radio VIN: 1G8AJ54F64
i have a 04 vue with electrical problem.when taking car out of park,engine running or w/key on eng off and lights off the radio lights,taillights and front park lights flash rapidly.if i turn lights on problem goes away.also inst panel lights will flash if tur...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Regal Gran Sport 3.8L Misfire VIN: 2G4WF55L4R
Hey family, i'm back with good news!!! I got this puppy purring again like a champ, I want to thank everybody who answered to my help request, you have overwhelmed me with a lot of good information, i did all the check ups that you guys told me, and this car w...
2002 Buick Rendezvous CX 3.4L oil pump VIN: 3G5DB03E32
Hey guys just wanted to say thanks for all the help. I replaced the oil pump shaft and disassembled the pump, the pump was fine so I went into the transmission and found that the reaction gear and planetary gear assemblies were stripped. I overhauled the trans...
2004 Buick Rendezvous CXL 3.6L No Start VIN: 3G5DB03704
There has been no other issues with our Buick. Had good replies after the update. Very informative and helpful, thank you. Ross found two TSB'S relating to my condition and reprograming was the fix on both issues. I think this may be the first request for thi... Trouble codes: P1631.
1996 Chevrolet Lumina 3.1L high idle VIN: 2G1WL52M4T
Thanks Guys for all the help. It ended up being the driver in the ecm. Ray
2001 Chevrolet Silverado 1500 LS 5.3L Misfire, MIL Lamp on VIN: 2GCEK19T31
hey guys sorry im so late sending this, the problem turned out to be a bad injetor driver in the ecm. I replaced the ecm and it runs great, I don't think the kid has shut it off since. once again thanks forall your help. Trouble codes: P0200 (injector circuit malfunction), P0300 (misfire detected).
1992 GMC MOTORHOME 454CID v-belts VIN: 1GBKP37N8N
Well, I got the M/H back to Colorado. Thanks for all the help and ideas. The P/S belt goes on first, still having issues with the A/C belt so it's not installed at this time. The last belt to go on is the serp. belt and it lines up very nicely. So, is this the...
2004 GMC Yukon XL 1500 SLT 5.3L Hesitation, Cuts out VIN: 3GKFK16Z14
We loosend and retightened all grounds...no change, we disconnected both frnt o2 sensor and drove ...no change, we disconnected all 4 o2 sensors test drove ...no change, we exersized every electrical connector in engine comparment , transmission , gas peddle, ...
2004 GMC Sierra 2500 6.0L glow plug module VIN: 1GTHK24284
Found wiring rubbed thru to bracket over driver's side valve cover. There are two harnesses, one over the top of the other. It was the lower harness, one single wire just before the connector had rubbed thru to the support bracket.
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next