× 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 November 20, 2013
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
2008 Buick Lucerne CXS 4.6L Abs VIN: 1G4HE57Y38
The car was in back in Sept, for same code. I haven't got it act up for me. The freeze frame shows the LF 42MPH and the other wheels showed 62mph. The customer stated the he was driving on the highway when the car just jerked to the right very hard. The Tracti...
2001 Chevrolet Express 3500 5.7L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy
my message is in related repair history Trouble codes: 1345 (correlation)
2006 Chevrolet Express 2500 4.8L Engine VIN: 1GCGG29V36
I was hoping to get some input on removing the engine from this van. GM says to do it out the front, But I have heard of techs pulling the body off the frame to make it easier. Has any one tried it that way? Any recommendations. They give 18.7 hours. Any issue...
2009 Chevrolet Silverado 1500 WT 5.3L piston VIN: 3GCEK13399
I tried to replace this truck's engine pistons. I want to save time for this job. Please let me know if I could replace the pistons without removing the engine from the engine room. If I have to remove the engine from the engine room, please let me know the sh...
2013 Chevrolet Impala LT 3.6L front impact sensors VIN: 2G1WG5E35D
I am working on this vehicle for a used car lot. It was bought from an auction with front end damage from a wreck and they replaced the items mentioned in the related repair history in addition to both of the front impact sensors, both front air bags, and SDM ...
2006 GMC Envoy XL SLT 4.2L Poor Idle Quality VIN: 1GKET16S66
We replaced purge solenoid and vent solenoid about a two weeks ago. Customer stated that check engine light came on the next day and would idle erratically and die at lights. She went to put gas in it and it started hard (she said it took five attempts to star... Trouble codes: P0171 (Fuel system lean), P0442 (EVAP system small leak detected), P0496 (EVAP system flow during non-purge)
1997 Oldsmobile Achieva SL 2.4L No Start
Hi, my name is Josh [...] I have a little bit of a problem child here that has me scratching my head on where to go next. This vehicle was towed to me about 2 months ago for a cranking no start. Found the security light flashing and codes for incorrect passl... Trouble codes: B1028 (Crank Low security signal fault), C1275 (Loss of communication between EBCM and IPC/PCM)
2002 Oldsmobile Bravada 4.2L REmoval
Does anyone have way to removed front diff without pulling all the things that all data wants? Have it loose just need away to get it out. Thanks
2003 Oldsmobile Alero GL 2.2L abs VIN: 1G3NL12F93
I have an Alero that came into the shop with the park lamps intermittently staying on after the key was shut off.Lights would stay on until relay disconnected.Found a wire behind the cluster that someone scotch locked in.Disconnected and let the car go.Girl ca...
2000 Pontiac Bonneville SE 3.8L Poor Idle Quality, Misfire VIN: 1G2HX54K1Y
Hello, This car came in for a overheat and died. Found the coolant leak and it failed a block test with running very rough. Customer opted to pull heads and they pressure checked OK, gasket was damaged. Put it all back together and now I have a misfire on cyli... Trouble codes: P0300

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Century Limited 3.1L Misfire VIN: 2G4WY52M5V
Here's the facts: Previously had checked the injectors, and they all tested fine. However, pulled up the plenum and switched #4 injector with an adjacent cylinder, no change, still missing on #4. Still, my gut told me it was ignition related. Swapped each coil...
2003 Cadillac CTS 3.2L Cuts out VIN: 1G6DM57N63
Wow what a weird one. Ended up being a bad cell in the battery. Would just dump voltage while driving and shut vehicle off. Alternator is working fine. Replaced the battery and all is well. Thank you all for your time and help.
1999 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEK19T8X
Received new fuel module but still no luck. I have disconnected all 5v sensors & still receive same codes. But all sensors work & vehicle runs (just light on). Going to replace ECU. As these vehicles are foreign to us, does someone have a good contact in the U...
2005 Chevrolet Astro 4.3L Mechanical VIN: 1GCDM19X95
i first want to thank all who offered help i got a trans budy of mine to look at it pulse width for for converter stayed normal but converter clutch would jump in and out replaced converter all is well so far engine does have slight quiver at idle but with th...
2008 Chevrolet Equinox LTZ 3.4L Headlights VIN: 2CNDL33F88
As always, thanks to all who took time to reply. Timothy and Dustin special thanks, you guys nailed it. Originally they got me a BCM out of an '06. Car started right up without programming BCM, but radio was locked. Programmed radio, then found out ignition ...
2009 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT57K49
the fix was the accelerator pedal,thanks to everyone that offerd help,its been a few weeks and code has not reset,once again thanks to every one that helped Trouble codes: P2127.
1995 GMC Safari 4.3L No Start VIN: 1GTDM19W9S
Well after plenty of frustration, I finally got it. A few times while I was messing with this thing, I would have the key on and the CEL would flicker a bit whenever it felt like it. If I tried to start the van then it would kick but then I'd loose the light ...
2001 GMC Sierra 3500 SL 8.1L MIL Lamp on VIN: 3GDKC34G11
have tried 5 different sensors and get no square wave at all. Old sensor works until it gets hot, then wave breaks up. City in talks with GM, but continue to use the vehicle. Trouble codes: P0341 (Cam position sensor signal out of range), P0342 (Cam position sensor signal low), P0343 (Cam position sensor signal high).
2003 GMC Yukon SLE 4.8L Poor Idle Quality, Stall VIN: 1GKEK13V43
Sorry everyone. The customer has picked up the vehicle because we couldn't get to it fast enough. Thank you for all the responses.
2001 Pontiac Grand Am SE 2.4L monitors VIN: 1G2NF52TX1
thanks to all that replied after driving this car home for three days and doing eight drive cycles for the cat the monitors still inc I started looking at the evap system found a small crack at the filler neck wasn't sure that was the problem so I just pluged ...
2006 Pontiac Grand Prix 3.8L emissions VIN: 2G2WP55286
I replaced the purge solenoid and had issues. I wish to thank all who suggested to replace the vent valve. Also I checked the fill tube found surface and flaking rust area's something to be replaced. Performed a service bay test with Tech 2. It passed test dri...
1999 Saturn SL1 1.9L Mechanical VIN: 1G8ZH5287X
Thanks For All Off Your Help I end Up Getting Car With A Bad Motor But Had A Good Trans So We Replace The Trans In The Other Car
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next