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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 22, 2008
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Open Help Requests for GM
Help Request Answers
2001 Chevrolet Camaro 3.8L Cuts out, Stall VIN: 2GIFP22K7Y
Car came in with stalling complain. Checked codes had a faulty MAP sensor.Replaced Map sensor everything was fine. Customer came back with same problem. Starts and runs fine and wfter about 10-30 minutes it cuts off. No codes present at this time. No misfires....
2002 Chevrolet Cavalier LS Sport 2.4L engine VIN: 1G1JH12T72
hi all hope you can help we are bald from pulling our hair out. this car came in with a leaking head gasket it was running fine. we removed the head and sent it out for repairs it was presser checked and the valve were reground. the head was resurfaced. we too...
2004 Chevrolet Impala SS 3.8L engine VIN: 2G1WP52174
Hello fellow techs. I have the Impala SS 3.8l vin #1 w/ a supercharger. It has an engine noise (ticking)in the lifter galley. You can hear it at the bottom of intake and also in the block along (close to knock sensor) the oil pan rails. Pulled valve covers and...
1995 GMC K1500 Sierra SL 5.7L Poor Fuel Economy VIN: 2GTEK19K0S
This truck is driving me crazy. Customer reports that once the engine is up to normal operating temp, the engine pings on acceleration or light throttle increase at cruising speeds. Changed to different fuel, then different octane. Checked Knock Sensor - ok. D...
2006 GMC Canyon SLT 3.5L XM radio VIN: 1GTDT19646
Hope you GM techs can help me hear. This is my personal vehicle. Doing a oil life reset with the tech 2 when I pluged in all of the gauges droped and the radio turned off. Tured scan tool off everything came back to life. I reset the oil life and checed for co...
1991 Pontiac Sunbird LE 2.0L No Start VIN: 1G2JB14K1M
hello everyone-happy easter. it seems to me that my brain has blocked the joy of remembering auto repair. this car is in the shop for a no start problem when damp. we drove it in in the rain friday, let it idle in the bay and then it stalled! great- now we sho...
1998 Pontiac Grand Prix SE 3.8L rear struts
car came in with noise in rear while going over bumps, a clunking sound. so i replaced rear struts and mounts with monroe sensatracs and same noise is still there. everything seems tight in the rear suspension. Ive heard of a tsb for this problem ,but im not s...
2005 Pontiac Sunfire 2.2L Misfire, MIL Lamp on VIN: 3G2JB52F35
car comes in with intermit. miss, mostly under a load miss 1 and 4, sometimes cleans itself up and runs good, suddenly 1 and 4 go nuts like a coil gone bad. tested injectors, control mod, plugs, also put a coil assembly from wrecker and got same symtoms, start... Trouble codes: P0300 (random miss)
2005 Saturn Vue 2.2L MIL Lamp on VIN: 5GZCZ33D76
I have a 2005 saturn vue , the concern is the check engine light stays on. I have checked for codes with a solus scanner none in pcm or bcm. I tried disconnecting the battery but the light is still on. The customer stated the dash lights were dim once. Any ide...

Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet Impala 3.4L Hesitation, Poor Fuel Economy VIN: 2GIWF52E21
Hello I was checking alldata specific values for the pre-cat back press (2psi)the max and I have between 0-.09 at idle and at 2,500rev the press goes up more than (3psi). The downstream specific values the max(2psi)and my readings are at 0 if i increase the re... Trouble codes: P0404 (egr open position performance).
2005 Chevrolet Colorado Z85 2.8L Mechanical VIN: 1GCCS14815
Thanks to all who replied. Most of you were on the right track. It ended up being the adjusters. But it was not from wrong instalation, it seems that there is a defect in some of the adjusters where the teeth were actually worn down to the point where it would...
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