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Prev Professional Automotive Repair Technical Discussions for June 15, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2000 Cadillac Seville SLS 4.6L security VIN: 1G6KS54Y0Y
We replaced the vtd module because of security light & when we tested after the repair the light stayed off. Customer took car & called back in a couple of days saying the light was back on. The codes are b1009 2734 3055. We cleared the codes and after several...
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2005 Cadillac DeVille DHS 4.6L Charging VIN: 1G6KE57Y05
i guys i removed this engine and repalced timing and guide replaced all motor mounts after market vehicle left shop and customer call vehicle wont start i went to the location vehicle wont crank jump starter vehicle crank tow vehicle to shop scan test no commu...
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1990 Chevrolet S10 4.3L Poor Idle Quality, Surge, Cuts out VIN: 1GCDT14Z9L
Hey folks, Been stumped on this one. Long ft is 128, fuel pressure is 14 psi. Truck first came in with a cold and hot surge with no codes. Used brake clean on intake and vaccum lines, found a bunch of lines brittle with cracks and one section of the intake tha...
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1996 Chevrolet Express 3500 5.7L Unknown VIN: 1GCHG35R7T
i would like to know what holds the fuel meter body in the upper intake .i can pull it up and soon as i crank the engine it sucks it back down.
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2002 Chevrolet Silverado 2500 HD 6.6L Poor Idle Quality VIN: 1GCHC231X2
truck came on the hook. Fuel pressure was way low, about 2mpa when computer asked for 40. So we replaced the primary fuel pump, it was sucking air. Better primary fuel pressure but still no start. Same numbers at the scanner. Went ahed and replaced injection p... Trouble codes: P0087
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2003 Chevrolet Venture LS 3.4L No Start VIN: 1GNDX03E73
hi guys ineed some help we raplace the transmission on this van after the trans the van wont crank i check fusses y change the neutral safety switch y che the wires from the ignition they are ok i check the startes relay i have to 12v wires 1 good wires to the...
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2005 Chevrolet Silverado 1500 5.3L Battery Light On VIN: 2GCEC19TX5
Hi I have a 05 silverado 5.3L that was giving some trouble to pass D.E.Q. had some codes and found water in the computer conector and corrored the pins so I had to replace the pcm and the seals. afther that everyting else is ok. but now the battery light is on...
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2006 Chevrolet Impala LS 3.9L throttle body VIN: 2G1WS58186
Got this car in a couple of days ago had a message on the dash "starter disabled service throttle" it had a code in the ecm for tp sensor 1. I completed the pinout test for the tp1 and tp2 sensors and determined the throttle was not able to pull itself complet...
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2006 Chevrolet Equinox LS 3.4L Stalling VIN: 2CNDL13F96
Im a bit new at iatn but ill give you guys the info i got. This vehicle intermitenly will stall when i do a first start it will crank then die crank each time i put it in start position, the system is set to where i can continuasly keep it cranking,. Found n...
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2008 Pontiac Grand Prix GXP 5.3L abs trac
ABS Light Trac Light and No brake Lights after vehicle driven in the rain or car wash. Once dries out everything works. Codes C0161 for brake pedal position sensor. Found no voltage to sensor, Checked body control module for water intrusion.
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Fixes & Summaries for GM
Fix/Summary Answers
1988 Chevrolet C1500 Cheyenne 5.7L Fuel Injectors VIN: 2GCDC14KXJ
Thanks everyone for the help. FIX: It turned out to be the ECM. We swapped the original for a known good one and that solved our issue. CONCLUSION: I would have to guess that the ECM must have been internally shorted at random times or it was thinking it had...
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1994 Chevrolet Corvette 5.7L Poor Braking VIN: 1G1YY32P7R
Customer did not want to replace ABS unit. We felt that it was causing the pedal problems. Everything else was replaced except the ABS unit.
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1996 Chevrolet Express 3500 5.7L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1GCHG35R7T
thanks t6o all that replied it was the o ring that had sliped
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2004 Chevrolet Cavalier 2.2L Hesitation, Surge, Cuts out, Poor Fuel Economy, MIL Lamp on VIN: 1G1JC52F64
It turns out that someone had put a fuel pump in this vehicle and when they did they managed to pinch the wires for the fuel level sensor. It was back feeding the voltage back to the pcm. Repaired the wires and all is fine. Thanks for the help. Trouble codes: P0122.
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2005 Chevrolet Tahoe LS 5.3L Shifting VIN: 1GNEK13Z85
I ended up performing the servo test with a pry bar and sure enough the servo was recieving shift command and band is broken, thank you for all the helpful pointers!!!
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2008 Chevrolet Silverado 3500 HD WT 6.6L no crank VIN: 1GJBK34638
thanks for all the replies, followed all data steps, led to replacement of ecm, called dealer it fell under recall for reseting computer even though we never recieved recall notice,everything fine now, recall says computer could lose memory,thanks everyone,da...
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2008 Saturn Aura XE 2.4L Alternator VIN: 1G8ZS57B08
THANKS GUYS FOR ALL THE RESPONSES, ESPECIALY TIMOTHY.IT ENDED UP THAT SOMEONE PREVIOUSLY ADAPTED A MALIBU ALTERNATOR WITH A DIFFERENT PIG TAIL. BOTH ALTERNATORS LOOKED A LIKE BUT HAVE DIFFERENT CONNECTORS. WE SIMPLY INSTALLED THE PROPER ALTERNATOR WITH CONNECT...
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