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Prev Professional Automotive Repair Technical Discussions for September 12, 2009
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Open Help Requests for GM
Help Request Answers
1995 Cadillac catera 3.0L No Start VIN: NO VIN
customer says car will drive ok for at least one hour around town and dies at stop or coming to stop,let it sit for an hour at most and starts and runs great again.idrove it when she came in and ran good when it ran.when it dies it does it instantly.won`t star...
1993 Chevrolet C2500 Cheyenne 5.7L Hesitation, Surge, Cuts out, Stall VIN: 1GCFK24Z2P
hey guys thanks for the help in advance this truck is really getting me the truck will run great for three to five seconds an then the surge an rolling idle starts you can move the throttle an the engine responds an sometimes cleans up for a few seconds then t... Trouble codes: 55 (testing and results)
1999 Chevrolet Express 3500 LS 5.7L Cuts out, MIL Lamp on VIN: 1GAHG39R1X
scoped crank sensor, normal good pattern. the driver says it has no pattern of accurances. Veh. while driving bucks, or stalls. If it stalls it will restart with no problem. Trouble codes: P0339 (Crank signal)
2000 Chevrolet Astro LT 4.3L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GNDM19W3Y
Well I have this Astro van and once you give it gas and the rpm's rise's above 1800 rpms the motor breaks up really bad with NO mis fires... We keep getting codes p0339 & p0341... It wont let us relearn the cranksensor because the computer is reading a fault i... Trouble codes: P0339, P0341
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...
1989 Oldsmobile Cutlass Supreme 2.8L No Start VIN: 1G3WS14W2K
Hello fellow techs wondering if anyone has seen this problem before I go on a wild goose chase. Vehicle came in as a no start. I noticed fuel leaking out of the air cleaner box. I removed the box and the hose to the throttle assembly and fuel is pouring out of...

Fixes & Summaries for GM
Fix/Summary Answers
1992 Buick Park Avenue 3.8L turn signals VIN: 1G4CW53L6N
FIX 92 BUICK PARK AVE TURN SIGNALS. I want to thank Gerry [...] for their help, the flasher was tucked up in the left corner of the dash below the A pillar. apparently it is'nt even near the steering column. thanks everybody for the h...
1997 Buick Park Avenue 3.8L in car temp VIN: 1G4CW52K0V
Well it is fixed. I didn't recieve very many replies , 3 to be exact.Two of the three replies said to make sure the refrigerant charge is correct. I did evacuate the a/c to see how much was in it. The system calls for 2 lbs. of r-134a it was aprox 6 oz. underc...
1997 Buick Park Avenue 3.8L oil level sensor VIN: 1G4CW52K8V
customer will have an oem oil level sensor put in at next oil change. the aftermarket sensor is not calibrated right for car.the wiring and insterment cluster checks good. Thank you to all who replied.
1999 Chevrolet Malibu 3.1L Misfire, MIL Lamp on VIN: 1G1ND52J1X
Hello All, You guys (and gals) are great. 32 replies in all. I will start with names,Mark, Terry, Austin, Skip, Sam, Steven, Rick, Paul, Scott, Loc, Allen, Steve, Pedro, Maurice, Joseph, Ken, Jay, Joe, Jimmy, Ross, Francis, Richard x2, Mike, Matthew, Bruce, Jo... Trouble codes: P0304 (Misfire 4 cylinder), P0171 (Lean fuel Bank 31), P0507 (Idle of base).
2006 Chevrolet Impala LT 3.5L Excessive Emissions, VIN: 2GIWT58K76
this customer was using the wrong type of fuel in this car after draining the feul and filling the tank with 93 octane no more spark knock. thanks for all the replies.
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