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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 17, 2005
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Help Request Answers
1989 Cadillac Fleetwood 4.5L Excessive Emissions, Poor Idle Quality, converter glows red VIN: 1G6CB5153K
OK, this started out as a slam dunk that is now slamming ME. What seemed obvious pattern fail territory is now uncertain guessing games. Subject vehicle was referred to us...new customer...transmission was REBUILT locally less than 20 miles ago. Customer comp...
1988 Chevrolet C1500 Cheyenne 5.7L No Start, Stall VIN: 2GTDC14K6J
I have 1988 chevy pick up 5.7. Truck was towed in died while driving. Truck will start but stall right away. checked fuel pressure ok, check for spark, has spark. Checked for codes none. Remove dist. cap, pick up coil was falling apart. Removed dist. and chang...
1994 Chevrolet K1500 5.7L Poor Idle Quality, Stall, Misfire VIN: 2GCEK19K1R
this truck has a missfire mostly at idle and when it does it the tach in the cab jumps or drops. the vehicle has a new distributor assy with module and the problem is still there. it does seem to be alittle better if the bypass wire for the timing is disconnec...
1996 Chevrolet C1500 Cheyenne 4.3L Brakes VIN: 1GCEC14W5T
Truck Was Brought in Because Brake Pedal would go to floor and Brake Light On Dash would Come on. Master Cylinder Was Leaking. Replaced Master Cylinder Pressure Bleed Brakes and Test Drove Vehicle and Brakes Worked Fine. Two Weeks Later Vehicle came Back With ...
1997 Chevrolet Astro 4.3L Cuts out, Misfire, MIL Lamp on VIN: 1GNDM19W9V
On first visit, vehicle displayed codes P0300 (random multiple missfire) & P0132 (bank 1 sensor 1 circuit voltage high) Customer complaint was intermittent missfire or cut out on light acceleration. With O2's disconnected scan tool displays high voltage (1V) o... Trouble codes: 300 (random multiple missfire), 132 (bank one o2 sensor voltage high), 152 (bank two o2 sensor voltage high)
1997 Chevrolet Cavalier 2.2L No Start, Stall VIN: 1G1JC1242V
Car was brought in for intermittent stall and no start. No start can occur after a stall, but can also occur after car is turned off and restart is attempted later (15 min. or more). We have never been able to duplicate the problem while we have it. The last t... Trouble codes: P0335 (crank sensor), P0341 (cam sensor)
1999 Chevrolet Blazer 4.3L No Start VIN: 1GNCT18W9X
Ok People I'm ready to toss in the towel.I have this Chevy Blazer that was towed in to our shop with a Crank no Start.First inspection and talking to the customer she states it will not start if the temperature drops below 30 degrees.Well when it arrived at th...
2002 Chevrolet Express 2500 5.7L MIL Lamp on VIN: 1GCFG25R62
We replaced the computer in this van. Now it needs to have the CKP variation learned (code 1336). At this point we have an outdated Snap-On scanner. It has the relearn choice in the scanner but I have to lie about the year because we are updated to 2000 (van i... Trouble codes: 1336 (CKP system variation not learned)
1996 GMC C1500 Sierra SL 5.7L Misfire VIN: 2GTEC19R3T
Truck came in with cyl 5 & 7 misfiring. did some checking and decided to replace lower intake manifold gasket, since these are always going bad on these VORTEC motors. after replacing still had 5-7 misfire. all sensor signals looked good. Replaced gasket again...
2003 GMC Savana 3500 6.0L Accessories VIN: 1GTHG35U93
This truck while driving will have the security and all the dash indicators come on along with all the guages dropping to zero has some codes P1626,U1300 . I dont have the proper Info in michells to diagnose it, the customer does not want to tie it up at the d...
2001 Pontiac Montana 3.4L Traction con VIN: 1GMDX03E91
Hello , We need some help on this van.When you press brake pedal and turn right turn signal switch traction control light comes on and right indicator in dash blinks fast.We checked for bad bulbs,swapped lamp socket assy from left side.Still does same.Hooked u...

Fixes & Summaries for GM
Fix/Summary Answers
1989 Buick LeSabre Limited 3.8L wipers VIN: 1G4HR54C4K
Thank you everyone. the wiper switch was the problem. I the wiring to the switch and the power there but there when u turned the switch, there was now power to the other wires...the switch needed replacing...the fuses where all good...thank u for all the advis...
1986 Chevrolet Monte Carlo 5.0L Starting VIN: 1G1GZ37H6G
well, I did finally get it to act up, and it only acted up after a long cold soak. and I tested starter Draw and it was only 48 amps on the pos. cable. did not check ground draw. It got so bad while cranking that the vehicle would not crank any more, as if it ...
1996 Chevrolet S10 LS 4.3L 4wd VIN: 1GCDT14X0T
I finally got back to this one. This is a company vehicle. I found that the cable became disengaged at the axle tube. Reengaged and it works just fine. Thanks for all the input.
1997 Chevrolet Blazer 4.3L transfer case VIN: 1GNDT13WOV
Hello Group, Happy to report the Blazer is fixed. David [...]. hit it right on, the fuse needs to be pulled and I even unplugged the control module for at least 5 minutes. Shifts on the go also like it's supposed to. Unfortunately nobody offered any t...
1998 Chevrolet Venture 3.4L Fuel Injection VIN: 1GNDU03E9W
Thanks to all who helped with this repair. The pink wire from the ECM was the culprit. It fluxuated between .6 V and 4.5 V, so when I replace the wire in the harness it was OK. Thanks again
1999 Chevrolet Silverado 1500 5.3L no fast idle VIN: 2GCEK19T3X
I appreciate all the replies to my post, the final time it had acted up it set lean sensor codes, I decided to take a shot in the dark and replace the intake gaskets, even though I couldn't detect a leak, but since the chevy dealer said they had plenty in stoc...
2001 Chevrolet S10 2.2L hard start VIN: 1GCCS14501
I got some good ideas from everyone and thanks to Jim for the Alldata info, but I never got the truck to act up and as this is a fleet account they didn't want to leave the truck down. When it comes back I plan to check the ignition signal since several people... Trouble codes: P0178 (fuel compensation sensor curcuit input to low).
2001 Chevrolet Silverado 1500 4.8L oil pressure VIN: 2GCEC19V11
Well thank you everyone. The cure was the oil pump. Ck the screen while i was in there, it was clear. Did not see anything abnornal about the pump,or housing just replaced the whole thing, and problem gone. Thanks again
2002 Chevrolet Cavalier 2.2L headlights VIN: 1G1JC52472
Vehicle has not returned but says all is ok. Andrew from Tennessee was probably right saying pins stretch in those relay boxes as that's where I was working by removing the relay to test it and reinstalling it, all ok since, also techs suggested wiring under b...
1999 Oldsmobile Bravada 4.3L Cooling System VIN: 1GHDT13W16
Well Ed, Rick, Micheal, Mike, Jim, Javier, John, Patrick, Al and agostine. As you said and I susepceted...but wasn't sure. Even after I have flushed the system 2 times. The customer brought the vechicle in this morning and again no heat. Even after the GM TSB ...
1992 Pontiac Bonneville SE 3.8L Starting VIN: 1G2HX53L7N
the problem with the car lied beneath the ignition module it wasn't grounding itself.Not sure why it wasn't grounding I cleaned the plate prior to the car starting but it still didn't start so I ran a wire from the battery and attached it to the base of the mo...
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