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Prev Professional Automotive Repair Technical Discussions for April 26, 2011
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1959 Cadillac DeVille 6.4L drums
i have a brake pull when applying firm preasure it pulls to the left pretty hard. we have adjusted all four corners several times and even backed left side way off still happens. there is only one line coming from master cyl and goes into brass block that send...
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1999 Cadillac DeVille 4.6L Radiator Hose Clamps VIN: IG6KD54Y8X
Does anyone know the name of the supplier of o.e.style hose clamps(constant tension type)to general motors or ford,or even chrysler???,as they are all using the same style. We've had many vehicles that our gear clamp style hose clamps are causing return visit...
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2004 Cadillac CTS V 5.7L Front wheels, front end VIN: 1G6DN57S84
Hello all. I have an issue that is driving me nuts. This is my car, which makes it even worse. I have a 2004 Cadillac CTS-V, that has a persistant front end shimmy, like a tire balance type issue. The steering wheel will shake at speed. When I balance the tire...
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2006 Cadillac CTS 2.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1G6DM57T56
Hey guys. This customer requested a used engine b/c the dealer said the chain jumped and bent all the valves. I installed the engine and it ran great. The customer put [...] on it and the CEL came on with the codes listed below. When I clear the codes the o... Trouble codes: P2096 (Post Catalyst Fuel Trim System Low Limit Bank 1), P2098 (Post Catalyst Fuel Trim System Low Limit Bank 2), P2177 (Fuel Trim System Lean At Cruise Or Acceleration Bank 1), P2270 (Heated Oxygen Sensor Bank 1 Sensor 2 Signal Stuck Lean), P0300 (Mult missfire)
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2003 Chevrolet Silverado 1500 5.3L stop lights VIN: 1GCEK19T73
have not put my hands on the truck yet but i figured i would try to see if there are any known issues with this problem. while driving at night the left rear brake light is staying on its to dark out to look at this tonight so im gonna play with it tomorrow. ...
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2005 GMC Envoy SLT 4.2L 1-2 Shift VIN: 1GKDT13S05
Customer brought vehicle to the shop with a hard 1-2 shift. First go around we did a transmission flush and told him to drive it awhile. He returned saying no change. On my test drive, with moderate acceleration, it would squeal the tires going into second gea...
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2005 GMC Envoy XL SLT 4.2L Unknown VIN: 1GKET16S05
I found no freon, vacumed the system down and it held 29 lbs. pressure for 15 minutes, charged system up 2.65 lbs. check for leaks, has front and rear unit, A/C blows cold and low pressure is 35 lbs. high pressure kepts going up 175 lbs., to 350 lbs till we sh...
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1992 Pontiac Firebird 3.1L No Start VIN: 1G2FS23T6N
after finding bad injector and replacing, and after replacing ecm we still have no injector pulse, have fire and fuel. looking for info on what direction to go now
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2000 Pontiac Grand Prix GT 3.8L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1G2WP52K8Y
Car came in from another shop, stalling out, surging when the vehicle is hot at idle. Vehicle starts again with holding the Rpm up higher, but if you let of it stalls. Seems to be worse after throttle has been reved a few times.
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2006 Saturn Vue 2.2L Mechanical VIN: 5GZCZ33DX6
This car came in with lower engine knock due to lack of oil change. Tried new set connecting rod bearing that work for a day. Cust decided to go with used motor. Replace motor only to find out oil pouring from rear main seal. pull motor, replace seal only to f...
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Fixes & Summaries for GM
Fix/Summary Answers
2002 Chevrolet Impala 3.8L Electronic VIN: 2G1WH55KX2
thanks for all the great responses. I removed the wires from both front looms removed the hard plastic sheath and cleaned and adjust all electrical pins. nothing was found to be dirty,bent, worn or out of place. Also checked the wire for chafing near the A/C b...
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2003 Chevrolet Express 2500 6.0L ignition VIN: 1GCHG39U43
I want to thank all you guys for your prompt responce,i have to mention that IATN rocks. The problem was the red wire for ignition into fuse box damaged,with your help we fixed the problem.
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2006 Chevrolet Silverado 1500 LT 5.3L Misfire, MIL Lamp on VIN: 1GCEK19B66
THANKS FOR THE REPLIES. WE PUT VEHICLE BACK TOGETHER AND SHIPPED IT OUT ON FRIDAY, CUSTOMER CAME IN MONDAY AND DID NOT HAVE ANY PROBLEMS. HE WAS VERY UNDERSTANDING AND PAID THE BILL. IT IS REALLY NICE TO HAVE THIS RESOURCE. THANKS FOR TAKING THE TIME TO RESPON... Trouble codes: P0300.
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2000 GMC Sierra 1500 SL 5.3L Differential VIN: 2GTEK19TXY
Well I think I got this on figured out. We got it back in here and up in the air. I found that the left paring brake shoe had come loose due the rusted out backing plate. It was just laying inside the rotor drum. Couldn't understand how I didnt hear it when I ...
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