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Prev Professional Automotive Repair Technical Discussions for October 27, 2005
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Open Help Requests for GM
Help Request Answers
1997 Cadillac Eldorado 4.6L Accessories VIN: 1G6EL12Y4V
I have a strange one here, 1st problem was his dog stood on the r power window switch and broke the window switch. no problem, then the car sat for 2-3 months and battery went dead, customer replaced, now when turn the key to on will not crank dash does not li...
1990 Chevrolet G30 Sportvan 7.4L Poor Idle Quality, Hesitation, Rough Cold Start VIN: 2GBGG39N6L
Customer bought vehicle used (Got a GREAT DEAL on it). Went on road trip to S. California on the way back just above the empty mark pulled into a gas station and filled the tank. 10-15 miles later vehicle started acting differant. Misfiring, CS drove vehicle a...
1995 Chevrolet C3500 Cheyenne 6.5L No Start VIN: 1GBKC34F8S
We cracked the bleeder at the top of the motor and had fuel there. We then pulled the fuel filter and have fuel in the bowl. We have no fuel getting to the injectors.The fuel pump on the fuel rail has between 5-10 psi. when cranking. There is no communication ...
1996 Chevrolet G30 Hi-Cube 5.7L Hesitation, Cuts out VIN: 1GBHG31K6T
hey guys thank you for taking the time to read this request customer brought this van in for not wanting to go, and lack of power. we drove it and they were right no power. the truck will only get up to 35 to 40 mph. and hold even when i put on the gas pedal. ... Trouble codes: 22 (tps low voltage)
1998 Chevrolet Express 2500 LS 5.7L Surge, Cuts out VIN: 1GCGG25R6W
Today the van came in for a no start at home. I went there and the van ran and made it to the garage with a couple of skips. On the test drive I found no skips in the first 1/2 hour. Then I booted it and at around 4000 rpm with the scanner hooked up, the rpm o...
2000 Chevrolet S10 4.3L Sound/noise VIN: 1GCDT13W22
Thanks for whatever you might suggest. Fuel Pump installed. 3 days passed since I released the vehicle back to the owner with no noise/sound or complaint of any kind. He brings it back ... so saying that there is a noise and that ... main bearings & loss of ...
2001 Chevrolet Impala LS 3.8L No Start, security light on VIN: 2G1WH55K31
hi. my customer is adamant about not brining his car to the dealer. This has a bad bcm. I'm sure. My question is can I install a new bcm then have the dealer flash it? my local jobber that flashes my ecms can't do the bcm. My question is can I install a new bc...
2000 GMC Sierra 1500 SL 5.3L Cuts out, Stall VIN: 1GTEK19TXY
first post ever.. this vehicle came to me with an erratic fuel guage and would stall and restart right away with a full fuel codes no check engine light.fuel pressure holds steady, the plug at the sending unit was replaced by local gm dealer,now the we...
2000 Pontiac Sunfire GT 2.4L Stall VIN: 1G2JD12T6Y
This vehicle dies when under acceleration making a right turn, we have checked fuel pressure it was in specs,we scoped the crank sensor, we checked the ignition module and coil pack,we checked the connector and pins at the engine control module all checks good...
1999 Saturn SC2 1.9L MIL Lamp on VIN: 1G8ZY1278X
Hello This Saturn has an Oxygen sensor heater code P0141. The rear sensor is indicated. A new O2 has been installed. The fuse is good and there is power going to the heater. The diagnostic chart says to read the current used by the heater while the heater is ... Trouble codes: P0141 (HO2S Heater Control circuit sensor 2)
2002 Saturn L200 2.2L DLR flashing + VIN: 1G8JU54F42
Saturn techs please help Wifes car. While running in day time the DLR lights flash, there is no DLR lamp light on while driving in day time light switch in Auto. Fuses Good, switched relay with wiper relay (same part number). Also while driving the brake ligh...

Fixes & Summaries for GM
Fix/Summary Answers
1983 Chevrolet K10 Custom 6.2L Surge VIN: 2GCEK14C7C
thanks to both replies i am installing a reman injector pump and belive that will correct the problem
1995 Chevrolet Lumina 3.1L No Start VIN: 2G1WL52M9T
Thanks to all that replied. Finally got it going. The problem was the key cylinder was not reading the key. I decided at one last shot to unplug the security wire that goes to the cylinder. Measured ohms going to the computer. Showed reading very close to new ...
1998 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDX06E1W
thanks for all your help electrical stuff is not my strong point but with your guys help i fixed it. i found a broken wire from the evap valve to the pcm repaied and code didnt come back and cust. happy so thanks again not know how i got by before this web sit... Trouble codes: P1665.
2003 Chevrolet Suburban 1500 LS 5.3L speedometer VIN: 3GNFK16Z43
replacing the instrument cluster repaired the speedo. We have not reprongamed yet, but everyone said must use the techII to reprogram.
1991 GMC C3500 Sierra 5.7L Right outer Tie Rod End VIN: 1GDKC34N2M
Part was located at Thanks for the help.
1997 GMC Yukon SLE 5.7L fuel guage VIN: 1GKEK13R8V
Thanks to all that replied, especially john from texas, He sent a TSB about this problem that fit perfectly, it's a damper kit you buy from GM that should fix this problem. The customer didn't want to proceed at this time, but I am 99% sure this wound have fix...
2002 GMC Sonoma SL 2.2L MIL Lamp on VIN: 1GTCS14582
Hi everyone, sorry for the delay, but this truck is fixed. My neighbor wanted his customer to drive for a week or so to confirm no engine light return. Thanks to many who replied. John, Kevin, [...] and Scott all mentioned the hidden fuse behind the battery... Trouble codes: P0410 (Secondary Air Injection System).
1995 Oldsmobile Cutlass Supreme SL 3.1L Compressor VIN: 1G3WH52M0S
Hello Fellow Techs: I received many replies and they were all helpful so let me start by thanking you all. I ended up again flushing the system, replacing the condenser (and, again, the accumulator & orifice tube), adding Pag 150 oil and it worked perfectly so...
1996 Oldsmobile Cutlass Supreme 3.1L No Start VIN: 1G3WH52M8V
thanks for all your replies i ended up chaseing a ghost, set up my own test bench for all the electronic ing. parts all were good the problem ended up being in the crankshaft itself customer does not want to go any farther with repairs!!
1999 Pontiac Montana 3.4L ABS light VIN: 1GMDX03E3X
First, I forgot not once but twice to say that this model does not have traction control. So if you're looking through the archive for answers on a Montana with traction control, I don't know how relevant all this is going to be. Anyway, I replaced most of t...
2000 Pontiac Firebird Formula 5.7L Poor Idle Quality, Surge, Cuts out, Stall VIN: 2G2FV22G0Y
well 'fixed' may be an over statement...I feel Jimmy from NC was right on with his suggestions: suggest modifying the timing / idle curve with a chip to increase idle speed and timing (a chip is the only way to do this, and owner says his has been reprogramed)... Trouble codes: P0504.
1998 Saturn SW1 1.9L Excessive Emissions, MIL Lamp on VIN: 1G8ZH8286W
Thank you for your replies and suggestions. I convinced the customer to replace with factory converter. We left the code on so as not to re set the monitors for inspection. The vehicle has been gone for 2 weeks and we are assuming that all problems have been r... Trouble codes: P640, P641.
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