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Prev Professional Automotive Repair Technical Discussions for September 21, 2004
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Help Request Answers
1996 Cadillac DeVille 4.6L No Start VIN: 1G6KD52Y4T
Hello everyone. We have this cadillac with the northstar motor. It started with an intermittent cranking with no start. At first it wouldn't act up but now is not starting at all. We have determined there is no injector pulse when not starting but we have spar...
1989 Chevrolet G20 Beauville 5.7L brakes VIN: 2GCEG25H1K
this van came in pulling to the right under braking. front brakes wore out caliper leaking on the left. repair brakes with all new parts van drives good. two days,[...] later van comes back pulling to the left under braking. recheck work all looks good. rep...
1995 Chevrolet S10 LS 4.3L Fuel Gauge VIN: 1GCCS19Z5S
Fuel gauge has no dampening to float movement.
1996 Chevrolet Monte Carlo Z34 3.4L Surge, Stall VIN: 2G1WX12X5T
This is a good one. When hot intermittantly at idle car will surge and die. No DTC's. Only odd data is long term fuel trim will bomb to +20% short term will also go to +20%. Front O2 stays down around 200mv and rear O2 goes to around 900mv. This is where the f...
1998 Chevrolet C3500 Cheyenne 6.5L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, MIL Lamp on, HARD START OVERNIGHT VIN: 1GBKC34F7W
Customer states ck eng light conmes on and vehicle will run rough (sounds loud)probably rpms going up. when this happens extra smoke out tail pipe occurs and ck engine light will iluminate. will have cruise on and it will disengage at this time (I think thats ... Trouble codes: P335, P251, P335, P238, P251, P335
1999 Chevrolet K2500 Suburban 7.4L unknown VIN: 3GNGK26J4X
This is a fire dept unit which came to me with the complait being it pulls to the left under braking. I checked to see if one of the front brakes were either dragging or ap[plying late and neither were. I first tried replacing front brake hoses which did not h...
2000 Chevrolet Cavalier LS 2.2L Hesitation, Stall, MIL Lamp on VIN: 1G1JF5244Y
vehicle brought in for hesitation,stall & mil on.customer also mentioned dash cluster will completely illuminate at times when driving. found loose ground at battery tray and repaired.scanned computer, multiple codes found;p1780,p530,p122,p452.fuel pressure at... Trouble codes: P0122 (tps circuit low), P0452, P0530, P1275
1997 GMC K1500 Sierra SL 5.0L air bag VIN: 1GTEK14M3V
a local body shop brought in this truck for a air bag light i pulled the codes and came up with 2 codes b1051 deployment commanded and b1061 lamp circuit failure the customer stated that the truck had no lights on when the truck came in for repair my shop does...
2000 GMC Safari SL 4.3L Cuts out, Stall VIN: 1GTDM19WXY
Hi everyone! I'm posting this for another shop who has been burned by this van long enough! I got a call today that they had replaced the bcm (after van had been struck by lightning) and needed to have it programmed. I have a Tech 2 and TIS 2000 so I thought n... Trouble codes: P0102
1995 Pontiac Grand Am SE 2.3L engine VIN: 1G2NE55D7S
this car at idle and wot has no problems, but normal city driving temp will go up to 254 and stays there until you floor it; then it will go right back down to about 210-215 degrees; or if you free-rev it, it will also go right back down to normal temps. sitti...
1996 Pontiac Grand Am SE 2.4L Hesitation, Surge, MIL Lamp on VIN: 1G2NE12T6T
OK people lets sharpen our head scratching fingers. The other day we had this car in for a bad misfire, we found the typical burnt coil holder. We replaced the coils, coil holder, boots, plugs, and a pair of O2 sensors. The car left the shop running great. The... Trouble codes: P0172 (Fuel System too rich bank 1 sensor 1)
2002 Pontiac Grand Am SE1 2.2L No Start VIN: 1G2NF52F12
Thanks in advance for any help. Im have a no start problem with this 2002 grand am with a 2.2. There is no injector pulse. This vehicle will run if I spray carb cleaner into the air inlet. have 60 lbs fuel pressure. I tested the injector with an osiloscope. Th...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Chevrolet K1500 Cheyenne 5.7L Cuts out, Misfire VIN: 1GTDK14HBU
i appreciate the 17 replies i got for this vehicle.we have tried it all and still does the backfiring.around 3000 rpm.we had another truck next to it for parts that ran. well,customer say no more time we have to close.thank you all for helping and p...
1994 Chevrolet Camaro 3.4L Clutch VIN: 2G2FS2ZS6R
Thanks for all that responded to my request. All the responses were good and appreciated. The problem turned out to be mechanical. The student that was involved in the job had installed the pilot bearing incorrectly and this caused a clearence problem that cau...
1996 Chevrolet K1500 5.7L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1GCEK14R6T
turned out to be a bad solder joint inside the ecm connector i had tested the signal to the ecm with a wire piercing probe and had a good signal the last time i checked it i moved the wire and had the scan data displayed i saw a drpout on the signal that was n... Trouble codes: P340.
1997 Chevrolet Astro 4.3L Driveline VIN: 1GNDM19WVB
Hello. I have yet to have this vehicle return for further diagnostics. I will follow up with a successful repair post once the vehicle returns. Thanks for all your time and responses. Regards, Ian
1999 Chevrolet Corvette 5.7L warning indicat VIN: 1G1YY22G0X
Only recieved 2 replies but both were dead on. There was a recall on the steering column lock so the dealer took care of that. Thanks to Mark [...] and Paul from Illinois for the tip that got that out of my hair. Special thanks to Paul for the tire pressure re...
1997 GMC Safari SLE 4.3L vents VIN: 1GKDM19W2V
we installed second vac reservoir and teed into vacuum line for recirc motor - all works fine
1996 Saturn SC2 1.9L MIL Lamp on VIN: 1G8ZG1270T
the customer elected to take the car to an electrical specialty shop to either condemn or give the pcm a clean bill of health. they couldn't find enough evidence to condemn the pcm. but they did find the same stored codes that i did. after they were done with ...
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