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Prev Professional Automotive Repair Technical Discussions for December 9, 2013
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Open Help Requests for GM
Help Request Answers
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1JC524XV
Good Morning Techs, Have this 98 Cavalier that came in with a Miss on Idle on Number 4 Cylinder. After diagnosing could not pinpoint reason for miss at idle (only at idle). Felt as though it was a vacuum leak. Sprayed propane around intake and injector ports,... Trouble codes: P0304
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2006 Chevrolet Express 3500 6.6L Hesitation, Cuts out, MIL Lamp on, goes into limp mode VIN: 1GCHG35266
intermitent problem, power loss when goin down the highway after check engine light comes on. it wil either set code p0108 or p0234. weare not real familiar with duramax diesels and have never ran into this before. any help would be greatly appreciated Trouble codes: P0234, P0108
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2007 Chevrolet Tahoe LTZ 5.3L Fast idle VIN: 1GNFK13077
Customer said vehicle suddenly lost power and set CEL. It also start and idles ok at first then will slowly increase RPM. I shut vehicle off and restarted and immediatly began fast idle (1500) and will increase to 3000 RPM. I've never ran into this before. Sca... Trouble codes: P0121 (Tps 1 performance), P2119 (Throttle closed position performance), P2135 (Not sure of definition)
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2003 GMC Safari 4.3L battery VIN: 1GDDM19X43
The car came in on a tow... car died down the road. Found the battery to be dead and replaced. After replacing the battery ran some basics on the charging system and the vehicle was overcharging, but not excessive to consider alternator as yet. Ran tests with ...
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2003 GMC Safari 4.3L battery VIN: 1GDDM19X43
The car came in on a tow... car died down the road. Found the battery to be dead and replaced. After replacing the battery ran some basics on the charging system and the vehicle was overcharging, but not excessive to consider alternator as yet. Ran tests with ...
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2007 GMC Acadia SLT 3.6L MIL Lamp on VIN: 1GKER33727
Vehicle came in for Traction control light, stabiltrak and check engine light on. Ran codes on the PCM and found lean bank one and two. Checked Data and LT FT bank 1 was at +35% same for bank 2. ST FT was at +25% fuel injector pulse width is at 2.9ms. Way too ... Trouble codes: P0171, P0174
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2008 GMC Sierra 2500 HD WT 6.0L Limited power VIN: 1GTHC29K08
This truck belongs to one of our fleet customers. The driver said it sputtered then lost power and the limited power indicator lit up. He cycled the key and no change, when I got to it, I could not make it malfunction. I got the code: p2138 symptom 00. I went ... Trouble codes: P2138
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Silverado 1500 5.3L Hesitation, Misfire, MIL Lamp on VIN: 2GCEK19T4X
Still not fixed at chevy dealer for 2 weeks they have not been able to find problem yet. I dropped exhaust not restricted i blocked egr flow no difference does not have a distributor.I use factory scan tools every day tech 2 and ford ids place i'm at now we ca... Trouble codes: P0336.
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2008 GMC Acadia SLT 3.6L power steering VIN: 1GKEV33748
Thanks for the replies from all!! We were able to sneak this pump out by lowering the cradle as suggested by a few of you. Took about 2 hours for R&R and bleed system. We did use a new Delco pump (also suggested in replies) and used Dex VI fluid. Customer ...
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