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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 29, 2011
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
2000 Cadillac Catera 3.0L All Lights VIN: W06VR54R0Y
We installed a new crank sensor and battery on this Cadi last week after it had been sitting for a year. The car runs great but the lights inside and out flicker fast and flash when you unlock the car, when using the key or the remote and they stop after a sho...
2003 Cadillac CTS 3.2L transmission VIN: 1G6DM57N13
im trying to find documentation on the last 3 codes found on my snap on verus updated to 11.2 according to our repair program (mitchell) we need to diagnose the other codes first before starting on the 1719, which starts to condemn the trans control module. ha...
1974 Chevrolet K10 Suburban 5.7L forword clutch VIN: 4564854854
got this thm 350 transmission that was bought from summit had less then 500 and the forword clutch burned up everything else had little or no wear. woundering if anything special shuld look for when overhaul? thanks in advance.
2000 Chevrolet K3500 5.7L lacks power VIN: IGBJK34R7Y
vehicle intermittently boggs down looses power, when this happens ignition timing goes to 250 when it runs good again goes back down to normal. unplugging vehicle input speed sensor at transmission solves problem, tried new sensor to no avail. please help
2003 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J33
Hello techs and thanks in advance; I have this customers car that intermittently will not start, have seen it fail once on my lot but did not look at the theft light on the dash, i do know that I had no spark when cranking and did not hear the fuel pump come o...
2005 Chevrolet Express 2500 4.8L Temperature gage VIN: 1GCGG25V75
when I start the van the temp gage works then in a matter of seconds it will drop down to like it dont work the ect says 196 but the icp says monitored temp 99 and so displayed is 99 so the gage seems to be working it will sweep and during the sweep it reads c...
2006 Chevrolet Silverado 1500 LT 5.3L Cooling fans VIN: 2GCEK13T06
Truck came back with cooling fans stuck on low. Rescanned P0480 reset (low speed cooling fans circuit), Can command low, med, and high speed fans both on and off. Both left and right fans run on low speed with key off only. If key is cycled to on fans turn off...
2007 Chevrolet Silverado 2500 HD LT 6.0L MIL Lamp on, Goes into limp mode VIN: IGCHC24K67
My fellow IATN members, I am hoping you guys can help me with this problem truck in my shop. This truck has been in 2 times for this problem. The first time it was in the truck was not showing and symptoms of a problem except the MIL illuminated. After testing... Trouble codes: P2134 (App 12 correlation)
2002 GMC C-Series Topkick C6H042 8.1L Service Brakes VIN: 1GDJ7H1E92
Hello all, this one is for the HD guys out there...and I'm stuck! After all that was replaced (please see above) there is still no activation of the service parking brake, this is the type with the drum on the driveshaft, and the PCBM shows no codes (00). I ca...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick LeSabre Custom 3.8L Mechanical VIN: 1G4HR52KOV
Well concenus among most of you is something inside of transmission case linkage or rod weld is broke.Car now has progressed to never staying in park position.Car was sent to transmission shop for repair.Mike
2006 Cadillac CTS 2.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1G6DM57T56
Thanks for all the info guys. Thank you John from NJ for reminding me to check what the rear o2s were doing while I was enriching and leaning the mixture, it verified that the rear o2s weren't biased towards the rich side. After I cleared the codes again, the... Trouble codes: P2096 (Post Catalyst Fuel Trim System Low Limit Bank 1), P2098 (Post Catalyst Fuel Trim System Low Limit Bank 2), P2177 (Fuel Trim System Lean At Cruise Or Acceleration Bank 1), P2270 (Heated Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Lean), P0300 (Mult missfire).
1998 Chevrolet C1500 Suburban 5.7L Starting VIN: 1GKFK16RSX
well thank you all we did finish this project turns out the machanic broke an ear on the distributor so we replaced the distrib set the timing she runs like a champ thank you again Brian
2001 Chevrolet Tahoe 5.3L Readiness codes VIN: 1GNEK13T81
Thank's to all, Well after doing everything suggested,and driving the thing about 150 miles,the sec .air code set so I was able to smog it with just the e-vap code pending. It passed smog with fly'n colors! thank's G.T.
1997 GMC K2500 Sierra SL 5.7L Entire System VIN: 1GTGK29R6V
Hello everyone. This vehicle is not yet fixed. At least not to my knowledge. I had to go in for emergency back surgery a week ago and had to pass the vehicle on. Last I heard it was a little better, but they still couldn't get the issue fixed. Thanks to every...
1995 Oldsmobile Achieva S 2.3L Mechanical VIN: 1G3WS52K4W
thanks for all the replies, i just found a 1994 2.3 sohc engine and did a head swap to the dohc head and it works perfect
1983 Other GM DMC 2.8L Clutch Master Cylinder VIN: SCEDT26T9D
Thanks for all the replies, (humorous, or helpful as the case may be... wink), We ordered and installed new clutch hydraulics from Delo... I also gave him a long list of preventative maintenance items... Cheers, Andrew
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