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Prev Professional Automotive Repair Technical Discussions for September 29, 2007
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Open Help Requests for GM
Help Request Answers
1996 Cadillac DeVille 4.6L ip panel VIN: 1G6KD52Y4T
this vehicle was repossed and a lock smith came out and cut a new key for this and vehicle started fine for a few days and than parked vehilce and it would not start,checked for trouble codes only codes found were p1604 loss of instrument panel cluster serial ...
1994 Chevrolet Caprice Classic 5.7L ecm VIN: 1G1BL52POR
Good Afternoon We have this 1994 Chevrolet Caprice with the opitical distributor mounted in front engine behind the water pump. This car was towed to our shop from another shop that had performed some exhaust work. The customer said they drove to the shop and...
1996 Chevrolet S10 4.3L No Start VIN: IGCCSI4XOT
Hello everyone I have this s10 that will not start after sitting for awhile,if you spray starting fluid in it ,it will start right up.But when you turn the key on the fuel pump does not run,Im thinking the fuel pump relay is not priming before starting.My prob... Trouble codes: 151 (171 -), 171 (174 -), 174 (440 -), 440 (testing and results)
1996 Chevrolet C1500 Cheyenne 5.7L Surge VIN: 1GCEC19R3T
my problem now over 40 mph to 70 mph surges, like the tc swich is bad but scan out put shows no sign of on off activity with tc when the surging is at work. am i on the right track? whats my next step? thanks andy.
1998 Chevrolet C2500 Cheyenne 5.7L No Start VIN: 1GCGC29R7W
I recently had this truck come in with a cyl 5 misfire wich turned out to be a burnt wire. We changed plugs, wires, cap, rotor and did a fuel sysem clean. The vehicle ran fine. On the test drive it died. It has spark. fuel pressure is a low at 55psi and leaks ... Trouble codes: P0161
1998 Chevrolet Express 3500 5.7L Stall, Hard Start VIN: 1GBHG31R1W
I have a 1998 G3500 with a 5.7 liter, the problem is the first time you try to start it, it will start immediately and stall within 2 seconds, the second time you start it takes about 5-10 seconds of cranking and then fires up and runs perfectly. Does this eve...
2005 Chevrolet Express 1500 LS 4.3L Hesitation, Surge, MIL Lamp on VIN: 1GCFG15X85
van came in with po102 - maf sensor/ circuit problem. replace the maf sensor and air hose, still did the same thing. check for vacuum leak with smoke machine and none were found. replace the maf sensor again and program pcm, acted the same thing. replace pigta... Trouble codes: P0102
1992 GMC Sonoma SLE 4.3L No Start, Cuts out VIN: 1GTCS14W4N
Hello all! Thanks in advance for taking the time to look into this. This GMC came in on the hook with a blown ECM 1 fuse. Replaced fuse and truck came to life. Checked circuit, found it powered ECM in two locations, intake manifold tuning relay, EGR, and fuel ...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Cadillac DeVille Concours 4.6L Suspension VIN: 1G6KF549XW
Well, so far so good. When we initially replaced abs control unit the front sub frame had to be lowered down and we did not notice that this broke the links to front height sensors. After repairing this, all has been good. We are thinking that when a problem i...
1998 Chevrolet Express 3500 6.5L shift solenoid VIN: 1GBJG31F5W
thanks to all that helped me .i never got the vehicle to act up while i had it at my shop. I CLEARED THE CODES AND THE CODES NEVER RETURNED AND THE VEHICLE HAS BEEN FINE EVER SINCE.
1998 Chevrolet Venture 3.4L Engine VIN: 1GNDX03E6W
Thanks to all of you. I am swimming in a ton of replies. I tried to thank each of you individually, but if I missed you thanks for the time. Everyone said you must drop the engine/transaxle as a unit on the cradle thru the bottom onto 4 jack stands and/o...
2001 Chevrolet Corvette 5.7L Traction Control VIN: 1G1YYZZG21
This no too common problem brought 4 good replys from knowledgable techs, thanks! I have access to GM Service Information and had run the trouble tree for the codes. It has to be a wiring/connector/ground issue in my mind. I removed all related grounds having ...
2002 Chevrolet Monte Carlo SS 3.8L suspention VIN: 2G1WX15K12
Car was not able to be returned for sugested repairs. If I get it back in the shop some day I will try to post the fix
2002 Chevrolet Trailblazer LS 4.2L Poor Fuel Economy VIN: 1GNDT13S72
well we learned the throttle wont open when in park. it only opens when in gear. so when we tested cat convertor we didnt have in gear. come to find out the cat was plugged. this engine only has 1 cat. sent to dealer for warranty. thanks for the help guys.
1991 Oldsmobile Delta 88 Royale Brougham 3.8L all Shifts VIN: 1G3HY54C7M
I want to thank you all for the replies on this car. After checking, it has no pressure and takes a little bit for pressure to build up. From responses sent to me, it sounds like the seals in the input clutch. I have yet to decide on how to fix problem(replace...
2002 Pontiac Grand Prix GT 3.8L passenger side window VIN: 1G2WP52KX2
Unfortunately the lady has not returned for the repair. I guess she's happy as long as it works from the drivers door. Most of the replies that I got were for a broken wire in the door. I had checked that out before I posted on here, and didn't find a broke...
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