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Prev Professional Automotive Repair Technical Discussions for October 16, 2013
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Open Help Requests for GM
Help Request Answers
1997 Buick LeSabre Limited 3.8L battery VIN: 1G4HR52K4V
hello and thanks in advance! This lesabre is giving us all a headache at the shop, it has a .08 draw, and should be around .025 to .03. the slightly high draw does kill the battery after a few days. now i have narrowed it down to be into the RFA module on the ...
2004 Buick Rainier CXL 4.2L Fuel Gauge VIN: 5GADT13S14
Okay here goes this is my personal vehicle. Bought it 3 weeks ago knowing the fuel gauge is stuck on empty. I know about the horrible dash issues these gm vehicles have. The low fuel light will come on when the tank is almost empty and the miles to empty works...
2005 Cadillac CTS 3.6L harsh down shift VIN: 1G6DP56745
Have done transmission adaptive relearn, and can feel better on up shift, but on down shift at lower rpms coming to a stop can feel hard bucking or a bang for a down shift. Dealership that done pcm says throttle body cleaning. I watch transdata and can see not...
1988 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality VIN: 2GCEK19K5J
This is a 1988 K-1500 truck with 5.7 and has an idle problem. The scanner shows a reading of 130-140 idle air counts, but iac is extended which blocks the air flow an didles too slow.Checked grounds, charging system for A-C voltage, replaced IAC, TPS,coolant s...
1989 Chevrolet K1500 Cheyenne 4.3L mode door VIN: 1GCDK14Z5K
This pickup came in with customer saying when he switches from vent to defrost it takes along time to switch. it has a electric system with mode door actuator. Inspected and found control head sending what appeared to be good signal. He previously had the cont...
1995 Chevrolet C2500 Cheyenne 5.7L rear brake lock VIN: 1GCGC29K5S
hi profesionales This truck has been parked for almost a decade- engine had a major repair done. brake lining pad at rear was severely damaged whole brake assembly was replaced except for emergency cable. the only Wheel draging is the passenger side which the ...
1999 Chevrolet Silverado 1500 5.3L Poor Idle Quality VIN: 2GCEC19T2X
We have a 99 silverado with an intermittent miss (stumble) at idle. No vacuum leaks. Cleaned MAF, and idle air controller. It shows no missfires. No codes, no strange data. It is worse in gear with ac on. Runs perfect other than this issue. Hoping someone has ...
2002 Chevrolet Venture LS 3.4L wont start VIN: 1GNDX03E82
I got this chev venture that wont start I have a few scan tool reading that don't make sense to me maf reading with key on is 2.53 and don't move when cranking I have a 24 x crank sensor that reads 293 with the key on and when you crank don't make any differen...
2006 Chevrolet HHR LT 2.2L Unknown VIN: 3GNDA23DX6
This little haunt intermittently (but more persistant recently) loses power steering and unable to communicate with any computer except theft module. Shut off vehicle and restart, problem may/may not be completely gone. One code B1325 showed up once (low volta...
2004 GMC Envoy SLE 4.2L Stall VIN: 1GKES12S84
Hi techs, I have a odd one hear maybe someone has ran across this before. I have this car that came from another shop that did a throttle body clean because of stalling. After a few checks I find that I have high fuel pressure at 55psi idling so I pull of the ...
2009 Saturn Outlook XE 3.6L airbag code VIN: 5GZEV13D29
Have a code B0015 OD stored hard in air bag memory. Clear it comes right back. Reading trouble tree, I'm not certain what I'm supposed to be looking at. Is it the Air Bag (sdm) module or the driver side seatbelt pretensioner. Vehicle doesn't look like it's bee...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Chevrolet Avalanche LTZ 5.3L Instrument cluster VIN: 3GNFK12327
Hello Everyone, thanks so much for your time and effort to help. As all of you said the instrument cluster was the problem. The lower white part was kind overheated. I took a chance to clean it up, and solder it back as best possible. It worked, the customer i...
2010 Chevrolet Cobalt LT 2.2L MIL Lamp on VIN: 1G1AF5F56A
I can't duplicate the issue. Clear the code, and tell customer to bring it back if it still have issue. This is regular customer. So far... haven't see the car back yet. Trouble codes: U0073 (Control Module Communication BUS off), P0700 (Transmission Control System Malfunction Indicator Lamp Request).
2007 GMC Acadia SLT 3.6L Camshaft VIN: 1GKER33797
Thanks for all the help. Smoked it this morning and found a nipple on the back side of the motor leaking. Cant believe I Could not hear it but oh well it seems to be fixed. Cleared all codes reset fuel trim ran in shop again for 30 mins and have taken on 2 tes...
2004 Pontiac Vibe 1.8L Mechanical VIN: 5Y2SL62864
Pretty much determined by the sludge and finding some of the bearing caps scored that there was low pressure in the upper end. Replaced with a used engine
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