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Prev Professional Automotive Repair Technical Discussions for July 18, 2014
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Open Help Requests for GM
Help Request Answers
2008 Cadillac STS 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G6DW67VX8
I have tested all of the resistances of the actuators. Found them to all be with in9.2 to 10 ohms. Thin used my snap on scanner the actuate the cams. Found the exhaust actuators to both operate ok. when I operate the intake cam angel control b1 nothing happens... Trouble codes: P0021 (Intake cam position system performance bank 2), P0087 (Fuel rail pressure too low), P0089 (Fuel pressure regulator performance)
1994 Chevrolet Blazer 5.7L No Start VIN: 1GNEK18K4R
Hi iant members this is my case truck wont start unles i rotate distributor to advance posición once it starts i have to retard timing back again if i disconect spout connector engine shuts off se we replaced a good known ecm and distributor from another truck...
2008 GMC Acadia SLE 3.6L Ac Check Valve VIN: 1GKER13768
This acadia came in with ac problems we evacated then recharged it. Thing is as soon as u turn it on it pops the check valve and shoots freon out. I no there has to be a blockage somewhere just wondering where u guys think should start ive check condensor alre...
2002 Pontiac Grand Am GT 3.4L Guages VIN: 1G2NW52E52
Hi everyone I have this vehicle kicking my behind. Customer had vehicle towed in not starting. Checked vehicle found battery dead do to automatic headlights will not turn off but when vehicle was jumped it started. While running the instrument gauges were not ...
2007 Pontiac G5 2.2L cooling fan VIN: 1G2AL15F77
the car came in the cooling fan wont work, i try to turn it on with scanner still didnt work, unplugged the connecter to the fan and all 3 wires on it have 12 volts, even the ground, any body have any other tests for me or know what could cause such a dillimma...

Fixes & Summaries for GM
Fix/Summary Answers
2006 Chevrolet Silverado 2500 HD LS 6.0L Steering VIN: 1GCEK19B66
Thank you all for the replies, very helpful. For those of you that mentioned gear box ... ding, ding, ding - we have a winner! I did narrow down by disconnecting tie rods to swing knuckle back and forth, in which it did, and same with the int. steering shaft. ...
2008 Chevrolet Tahoe Hybrid 6.0L Ecm Tdm VIN: 1GNFC13598
Did NOT figure this one out waiting on GM dealer to reply to me with anything helpful.Before I buy more parts.Anther request steel open same truck If you have any ideal pls let me know.Thanks
2008 Chevrolet Uplander LT 3.9L Electronic VIN: 1GNDV33138
found rear mode actuator stuck, that's the only thing I changed that stopped the codes from setting. as far as the a/c light blinking it just stopped blinking on its own. I guess it calibrated on its own.
2006 Pontiac Montana SV6 3.5L Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1GMDX33L76
Short fix answer was the computer. P0171 was fixed by cleaning the MAF. Fuel trims stayed +or - 5 the whole time testing. We could hear no engine noises at idle or power braking. We tested the knock sensors and wiring every which way we could. It came down to ... Trouble codes: P0327, P0332.
1999 Saturn SW2 1.9L MIL Lamp on VIN: 1G8ZJ8275X
Hi and thanks for all the help. Still waiting for this customer to come back in. will use the help we got if they come back? Thanks
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