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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 9, 2013
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Open Help Requests for GM
Help Request Answers
1998 Buick Century Custom 3.1L air bag VIN: 2G4WS52M5W
Iam putting a clock spring in this car and was wondering if anyone has a trick for pulling the steering wheel. it is on so tight Have broken the puller for removing the steering wheel. is there a trick to this?
2011 Buick Enclave CXL 3.6L Misfire, MIL Lamp on VIN: 5GAKRBED3B
i hope everyone has had a good season so far... i have a 3.6L Buick Enclave with random cylinder misfire and have found misfire history on cylinders 1, 3, and 5. I am not familiar with the direct injection or possible EGR system on this vehicle. With the low m... Trouble codes: P0300, P0305
2003 Cadillac Seville SLS 4.6L suspension VIN: 1G6KS54YX3
This vehicle came in for service. During initial test drive a clicking/clunk type noise is heard from left front axle area while coming to a complete stop. raised vehicle on hoist inspected ball joints,tie rods,brakes. all ok. inspected sub frame bushings all ...
1990 Chevrolet C1500 Cheyenne 4.3L No Start VIN: 1GCDC14Z8L
Looking for some quick replies on this one, it's driving me up a wall! This old chevy will not make any spark. So far I have tested the pick-up coil(ohms good and produces 750mV signature on scope), module(seems okay, fed voltage into terminal from pick-up and...
1990 Chevrolet Corvette 5.7L Poor Idle Quality, Surge VIN: 1G1YY3384L
Thanks in advance for the help. As you can see I have done a lot and am not sure where to go next. The engine sounds good mechanically, no ticking or knocking sounds, it does however smell extremely rich as one might expect with block learn maxxed in the rich ...
1992 Chevrolet Corvette 5.7L Misfire VIN: 1G1YY23P1N
This 'Vette has no spark on cyls. 1 & 2. I checked the high and low resolution signals from the opti-spark at the ECM with a scope, and the signals are strong and clean with no dropouts. The signal to the coil driver(module) from the ECM is good also. So I hav...
1995 Chevrolet Impala SS 5.7L Mechanical VIN: 1G1BL52P5S
Hey guys! Got my co-worker the oil change guy with low budget that Im trying to help with his impala that wont go into any gear I check the shifter linkage and drop the oil pan it all looks in place.I hook a pressure gage to the lines theres no pressure .Im no...
1999 Chevrolet W3500 Tiltmaster W3S042 5.7L Misfire, MIL Lamp on VIN: 5CGCP41R2X
This is a comeback: originally came in for MIL on and failed emissions test. Had code P0303. checked spark plugs, wires, dist cap and rotor. Cap and rotor burned, plugs eroded electrodes,I changed them all. Checked Cam offset-- it was at -43 degrees yet it ran... Trouble codes: P0300 (Multiple misfire)
2002 Chevrolet Impala 3.4L Starting VIN: 2G1WF52E42
Hey guys im working on this 2002 impala, this car was brought to me with a no crank and headlight intermidiate problem i end replacing bcm for headlight problem and got fix but the car still no crank,i check all the starting circuit form pcm to starter ok if g...
2005 Chevrolet Colorado Z85 LS 3.5L Misfire VIN: 1GCCS136X5
i got this 05 chevy colorado with 3.5 engine that came in missing on number 2 cyl did plugs as per customer request while i was there swaped coils still had a miss on number 2 customer read about all the head problems theses things have and requested we do a h... Trouble codes: P0302
2008 Chevrolet Silverado 3500 HD LT 6.0L no shift stuck in 3rd VIN: 1GBHK39K98
this is my first 6l90 6 speed trans. it is a railroad truck so is very heavy and very abused. when it came in the customer stated he had put truck on the rail about 4 mile from me. went only about a mile and it quit moving. after several times of letting it si...
2007 GMC Savana 3500 4.8L Cat VIN: 1GDGG31V37
Hi Guys, This truck had come in with a P0430 tripped in the ECM. Last year we looked at scan data and did not find anything alarming that would kill these cats. Now its back and the Bank 2 Cat efficiency is a problem. Looking at the rear O2s, they are both swi...
2006 Saturn Ion-3 2.2L Starter VIN: 1G8AL55F26
This Ion came in with a customer described intermittent no start condition. Customer replaced battery, verified battery is good with load test. We had the car several hours and could not verify concern until we went to park it. Starter solenoid rapidly clicks ...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Silverado 1500 5.3L Abs Module VIN: 1GCEC19T1X
Replaced/rebuilt EBCM module and cured the problem---thanks for help. Scanned for codes and none appeared, both ABS and Emergency brake like have not come back on. Thanks
2006 Chevrolet C5500 Kodiak C5C042 6.6L Over revving VIN: 1GBE5C1206
All the information senst was great. Started vehicle and found injection pressure on the scanner was dropping off. After running for a short time we did notice some fluid around exhaust at turbo. Removed the tube and found diesel in the exhaust. Found #4 injec... Trouble codes: P003A, P2563 (boost control position sensor performance), P0565 (Cruise control switch circuit).
2009 Pontiac G8 GT 6.0L Airbag VIN: 6G2EC57Y49
Thanks for all the input. The problem was with and in the pass. presence module. replaced and reprogrammed module and all is working fine. Thanks again.
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