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Prev Professional Automotive Repair Technical Discussions for January 13, 2012
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Open Help Requests for GM
Help Request Answers
1994 Chevrolet K1500 Cheyenne 5.7L Transmission shiftin VIN: 1GCEK14K1R
Hey guys, thanks in advance for any help. Have this 1994 chevy k1500 4x4. Owner bought truck with no motor or trans. Installed motor and trans himself. After he installed it he brought it to us for a multitude of problems. The last of which is that the transmi...
2003 Chevrolet Trailblazer North Face 4.2L valves VIN: 1GNDT13S83
Truck brought into shop running ok but with noise complaint. Loud, rythmic tapping noise similar to rod knock but comming from top end. Removal of camshaft cover revealed clyinder #4 intake valve rocker had slid off the top of the valve and was pushing down on...
2005 Chevrolet Trailblazer LS 4.2L oil light VIN: 1GNDT13S15
Thanks for all your help in advance. This suv came in for an oil change and filter. Along with the thermostat needed to be changed because the car would not warm up enough. We cleared the change oil soon light. However the picture of the oil can with the light...
2006 Chevrolet Impala LS 3.5L No Start, Poor Idle Quality, MIL Lamp on VIN: 2G1WB55K76
Vehicle was towed in a couple of weeks back for no start. Codes were checked with multiple codes for misfire, MAP, and for other areas. Not sure of all because another mechanic erased them. After replacing parts car started and ran good. we delivered car to cu... Trouble codes: P0106 (Map sensor performance), P0107 (Map sensor voltage)
2007 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AK15F97
Hi ,hope somone may have this code poo16 runs great.code comes right back after clearing just by starting the car.trying to get it to pass nys inspection.scoped cam & crank sensors both look good.i used snap on verus readngs with ones on scanner.this engine do... Trouble codes: P0016
2004 GMC Sierra 3500 SLE 6.6L Excessive Emissions VIN: 1GTJK33164
Hello, everyone. This is the first time this vehicle has been at my shop. Excessive white smoke...smells like over fueling. No coolant loss, oil level is OK. The problem lessens after warmup, but still excessive smoke. No codes. The balance rate of injector #2...
2003 Pontiac Grand Prix SE 3.1L No Start VIN: 1G2WK52J93
Hello everyone. This vehicle came in with a no start condition. First off i have no communication to my scanner at the dlc. I am getting 12.5v at the power wire and i am getting .35v-.25v at the signal data wire. My modis will power up but not communicate. Eve...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Seville SLS 4.6L complete cluster VIN: 1G6KS54Y3X
Sorry Guy's & gal's Customer has chosen to hold off on repairs for now. My plan was to get a TECH 2 to complete testing. We will get the vehicle back in the spring. When we complete repairs I"ll post the correction here. Thank you!!
1998 Chevrolet Malibu LS 3.1L Starter VIN: 1G1NE52M0W
I thought I had eliminated this as a possibility by using a set of jumper cables to go from the battery negative to the engine, adding a ground circuit, but apparently that wasn't good enough. The problem did end up being the negative battery cable! You guys...
2000 Chevrolet Express 2500 5.7L fuel pressure VIN: 1GCGG25R3Y
i would like to thank everyone who replied to my post. I was leary of it being the fuel pump because i had put one in it a while back but after a few test to rule out the regulator and everything else i went with the fuel pump. and that fixed it. so once again...
2002 Chevrolet S10 4.3L No Start, Poor Idle Quality VIN: 1GCCS14W92
Thank you for all the replies. Have you ever asked a question that the second it comes out your mouth (or posted) you already know the answer. Dropped tank and the strainer is coated in milk chuncks. Never knew milk would leave such a residue. power washer ...
2004 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC12F14
after confirming that vehicle would fire on second key cycle elected to replaced electrical portion of ignition switch and that fixed problem and vehicle started immediately on first key cycle.
2004 Chevrolet Suburban 1500 LS 5.3L tcase-ftdf VIN: 3GNFK16Z54
thanks guys for your reponse. we found a ruff bearing in the out-put of the transfer case. front shaft side. thanks again ron
2006 Chevrolet Malibu Maxx LTZ 3.5L No crank No Comm VIN: 1G1ZU638X6
Ok...It runs. Thank you for all the suggestions. It was the pcm that was no good for that particular vehicle. I was told by Marty that because the PCM in this vehicle only uses GMLAN and no serial data line that the pcm from a car with serial data would not wo...
2007 Chevrolet Impala LS 3.9L Horn VIN: 2G1WS55R97
thanx everyone ya hit it right on the head, replaced fuse box with used one worked perfect. again thanks!
2005 Hummer H2 6.0L heated seats VIN: 5GRGN22UX5
Needed heater element in lower seat cussion. Thanks for the insight. We ended up sending the car to our chevy dealer to have them look at it since they had just given it to us. Got the call a few days later, tech didn't give me too much information about hi...
2000 Oldsmobile Intrigue GX 3.5L low beams VIN: 1G3WH52H5Y
Well after hours of looking for the relay I gave up and began anew looking at the wiring. (Both GM and MOD do not have the headlight relay in their locaters) I had begun earlier looking at suspect wiring around headlights but to no avail. That is when I spent ...
2001 Oldsmobile Aurora 3.5L Windows VIN: 1G3GR64H01
Well this car is fixed it was a broken ground wire in the pass though grommet on drivers door after repairing all window and lock work normal. I burned myself when I only pull grommet back a little ways to inspect wiring harness first time. tryed wiggle test b...
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