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Automotive Technical Exchange for the Automotive Repair Professional
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Open Help Requests for GM
Help Request Answers
1999 Chevrolet Corvette 5.7L Wipers
Wipers operate when switch in the off position. Cowl well was full of water. opened plugged drain and removed water. wipers now work except they oscilate between the Park and Rest position again with the switch in the off position. Switch tests OK, think i've ...
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2007 Chevrolet Suburban 1500 5.3L No Start, long cranking
We checked for fuel pressure it appears to delay engaging the fuel pump when key turned on. Haven't seen this on this new a vehicle. When it starts it runs perfect, no rough idle.
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1989 Pontiac Firebird 5.0L vats
Group- I've hit a wall with this Firebird/Trans-am, and I could use some input. It's a crank no start.The VATS system seems to be the problem, but I can't seem to come to an end. Found that the wires that go up the steering column were broken, no brainer righ...
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2001 Pontiac Firebird 5.7L Poor Idle Quality, Misfire, MIL Lamp on
Cyl 6 misfire, and lean on both banks, codes p0171, p0174, and p0306. cust had taken back to the place he bought it from many times and all they did was turn off the light and in the end told him he needed injectors. for cost sake he turned to the internet and... Trouble codes: p0171 (lean bank 1), p0174 (lean bank 2), p0306 (cyl 6 misfire).
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2000 Saturn LS2 3.0L No Start
This car won't start after sitting on a drive way over night on a hill. Roll it down to the street and will start right up. I put a fuel pressure tester on it and pressure was normal all day come back in in the morning no fuel pressure with front end of car li...
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Chevrolet Astro 4.3L No Start
Thanks for those who took the time to respond. This vehicle indeed had a PCM programing issue. Funny thing, after all the trouble I already had, heres how I figured it out. After testing powers, grounds and communication wires I took van to local Chevy dealer ... Trouble codes: u1000 (class 2 com. fault in air bag module and t. case module.), u1016 (cannot comunicate with PCM code also in air bag and t. case module).
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2003 Oldsmobile Alero 2.2L Poor Idle Quality, Stall
This one has been on the road for a week now with on problems. So I am going to call it fixed. Richard [...] hit it on the head when he said there was a TSB on this problem. Took car to dealer and they performed the reprograming and this improved idle.
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2004 Pontiac Grand Prix 3.8L engine
I did as some of you said and slid the converter away from the flywheel noise is still the same and checked the front cranshaft pulley it looked ok. We are going to put in a different engine thanks for all the help.
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2002 Saturn L200 2.2L starts then dies
This is to let everyone know what the problem was. Icouldn't communicate to the BCM with the Modis ,so i borrowed a Tech 2 no response either. I felt like the BCM was bad had no way to flash it . Sent the car to saturn and yes the BCM was bad. Trouble codes: U1000 (Class 2 serial communication problem), P1599CC (CC power Management mode or engine).
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2002 Saturn SL2 1.9L anti theft
Thankyou for the replies especially Mark from Florida, I appreciated the details in your response. I did not have excessive voltage drop from the battery cable but there was some corrosion, I cleaned it and that did not seem to do anything for us. After more p...
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