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Prev Professional Automotive Repair Technical Discussions for September 10, 2009
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1992 Buick Park Avenue 3.8L turn signals VIN: 1G4CW53L6N
I have this 1992 Buick Park Ave, and I can't find the turn signal flasher. All the info I find shows it to the left of the steering column. but it's not there. anyone have any ideas. I found the hazard flasher on the right side.
1993 Chevrolet K1500 Silverado 5.7L lifters
truck has lifter noise now did not hear any before what could cause this.
1999 Chevrolet Malibu 3.1L Misfire, MIL Lamp on VIN: 1G1ND52J1X
Hi Everyone, This Malibu needed the lower intake manifold gasket replaced due to coolant leak (can you imagine). I gave him estimate and he went elsewhere to have repair done. Now the fun starts. Misfiring since the job was completed. They (the other shop)inst... Trouble codes: P0304 (Misfire 4 cylinder), P0171 (Lean fuel Bank 31), P0507 (Idle of base)
2004 Chevrolet Silverado 3500 6.0L MIL Lamp on VIN: 1GBJC34U54
The reason we got this truck was it would hardly run and give multible codes after all the modules were replaced. We verified the programming of the ECM, then we pin tested and foung loose ground behind engine at a transmission bolt. All was well with the worl... Trouble codes: P0101 (MAF senser circuit)
2006 Chevrolet Suburban 1500 5.3L service stability VIN: 1GNFK16Z66
vehicle came in for routine service and power steering fluid leak. we replaced the power steering gear box for seal leakage aligned vehicle and everything seemed ok. two days later vehicle came back with service stability system light on we pulled code c0455 f...
1999 GMC K1500 Sierra SL 5.0L Electronic VIN: 1GTEK19T8X
we have a 1999 gmc k1500 here that has an abs problem.. the problem is the abs system is deactivated and the lights on the dash flash but there are NO CODES in the system.. no current codes and no history codes.. when you turn the key to the run position the a...
2001 GMC Sierra 2500 HD SL 6.6L No Start VIN: 1GTHK291X1
Hello everyone, This Duramax is intermittntly not starting,mostly cold inital startup. Once it starts it runs good. Fuel rail pressure on data stream 6-8 Mpa cranking & no-start. Sometimes you can watch it creep on up to 10 Mpa at which point it starts. Usuall...
2004 GMC Sierra 1500 4.8L No Start VIN: 1GTEK14V74
Hi all. This one has no start, no spark, no injector pulse, no rpms on scan tool. I did not have crank signal at the pcm. I checked at the crank sensor and had signal at the sensor. I ran a new wire from the crank sensor to the pcm and I now have signal at the...
1994 Pontiac Bonneville SE 3.8L Mechanical VIN: 162HX52K25
iv got a 1994 pontiac bonneville se 3.8 6 cly somebody els took the motor apart so we pute it back together started the car water was going through the exaust tore the motor back down did a valve job,magnaflexed heads no cracks,got brand new upper intake manif...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Buick Century Limited 2.5L fuel pump VIN: 1G4AH81R8J
thanks guys,the pump we are going to install is a delphi #fe0115, i called delphi on their tech line and was told this number supercedes the two delco numbers,this is the same info i recieved from bruce in kentucky,thanks bruce and everyone else for your input...
1999 Cadillac DeVille 4.6L lock cylender VIN: 1G6KD54Y7Y
thank you for the help i did take a hammer and hit it and turned at same time then i could get the tumblers out to re key
1977 Chevrolet C20 Silverado 7.4L Unknown VIN: GM12387GOO
it was the cam bearings went bad was causing the water to run in the engin
1981 Chevrolet C10 Deluxe 5.0L Hesitation, Choking out VIN: 2GCDC14G5B
I knew it, over fueled. When 19/24 guys agree with the gut, you go with it. I didn't want to void the Summit warranty so, I got lucky with a carberator that I found for a C-note 10 miles away. The labor to rebuild and install it made a lot of sence to me. ...
1991 Chevrolet Corvette 5.7L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy VIN: 1G1YY3387M
Hello all Thanks for all the replies on this one. As most of you wrote, the injectors were the problem. After taking an ohm reading on all injectors I found one bad on each bank. Should read about 16.5 ohms and had two of them reading only 2 ohms. Replaced inj... Trouble codes: 32 (EGR-replaced and code has not returned).
1993 Chevrolet Lumina Euro 3.1L Drivability VIN: 2G1WN14T1P
Thanks again for all the replies; many of you gave me additional insight into what else to check but Ryan from New Mexico, Robert from Washington and Rick from Virginia all "hit the nail on the head" Tear down revealed contact with the valves on cyls 1 and 2 a...
1996 Chevrolet Blazer 4.3L No Start VIN: 1GNCS18W4T
Thanks for all the replies,ignition switch fixed vehicle,to clarify,I sprayed under hood,with hood closed & from underneath,vehicle would start every time,don't really know what rain had to do with it unless damp weather affected switch,i tried starting for ab...
2000 Chevrolet Camaro 3.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 2G1FP22K1Y
We have yet to fix the problem and the boss man doesn't want to tie up any more time with it. We did learn how to check timing without pulling covers off, and what a running compression test was useful for. Thanks for all the advice and helpful tips. We can... Trouble codes: P0300.
2002 Chevrolet S10 4.3L 4 wd VIN: IGCDT19W02
Thanks for the help , as many suggested the vac switch on the transfer case was a problem. the switch was sticking ,replaced and all is good now. as truck lost its vacum suply on long hills the front axle would try to engage.
2004 Chevrolet Monte Carlo LS 3.4L Misfire VIN: 2G1WW12E94
Thanks for all the quick response. It end up being a bad spark plug. always stick to the basics never think new parts can be bad. Trouble codes: 0300 (multiple missfire).
2004 Chevrolet Optra 2.0L AC System VIN: KL1JD52Z44
Thanks to those of you that replied. The customer has not returned, I am hoping that the AC still works and that the leak was at the valve. Thanks for the tips on checking leaks in the evaporator. I shall do so if the car returns. John
2005 Chevrolet Express 3500 6.0L airbag system VIN: 1GBJG31U25
Well this one is finally fixed. After getting some decent suggestions I went back to the original harness to check the ohm readings of the wires going to the clockspring and air bag.. I got those readings which were 0 and went to the new harness that I instal...
1998 Oldsmobile Intrigue 3.8L blower motor VIN: 1G3WS52K8W
Sent Dealer of which a friend of mine is service manager. Gave to him with complaint only, no history. He replaced control head (5th from same supplier) after 3 days it is still working. Thanks for everyones help.
2007 Pontiac Grand Prix 3.8L low beam inop VIN: 2G2WP55287
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