Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 15, 2009
International Automotive Technicians' Network (iATN) - Members Only
Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
2000 Buick LeSabre Limited 3.8L compressor VIN: 1G4HR54K1Y
This vehicle came in with a compressor that was leaking at the body joint. I replaced the compressor with an AC Delco unit, filled it with the specified amount of oil, 2oz at he fill plug, replaced the accumulator and evacuated the system for over two hours. I...
View
1996 Chevrolet Camaro Z28 5.7L Excessive Emissions, trip mon. run key on VIN: 2G1FP22P8T
Car came in with leaking heatercore and waterpump running hot to 3/4 of guage replace core and pump customer wanted to pr test for smog (calif.dyno 50/15 and 25/25 tests) failed excessive Nox over a 1000 ppm 15mph and 25mph had stuck EGR valve replaced valve a...
View
1999 Chevrolet Express 1500 5.0L Hesitation, Surge, Cuts out VIN: 1GCFG15M3X
the van came in with a hesitation,severe enough for customer not to drive.checked backpressure at cat,suspected plugged cat but road test confirmed no backpressure at time of fault.fuel pressure is with in spec.mass air flow seems to be ok.the speedometer stop...
View
1999 Chevrolet S10 2.2L starter, lighting VIN: 1GCCS1447X
Hello to all and thanks in advance. I am having trouble with my personnal vehicle. I downshifted to accelerate past another vehicle...5th to 4th at about 65 mph and midway through I lost engine and headlamps. The hazard lights now only work if brake pedal is d...
View
2000 Chevrolet Silverado 1500 4.8L MIL Lamp on VIN: 1GCEK19V8X
hello all! we have a 2000 k1500 w/a p0137 02 sensor circuit low voltage (bank 1 sensor 2). i did verify low voltage at 02 sensor. b2s2 is normal. b1s2 only low at idle. did graph both rear 02 sensors and can see low voltage b1s2. operates normally at 2500rpm. ... Trouble codes: P0137 (o2 circuit low voltage b1s2)
View
2005 Chevrolet Astro 4.3L 3rd gear free revs VIN: 1GKEL19X25
Thanks for reading this post. I have this Astro van from a good customer who was too cheap to put a reman in, so Since I am capable, thought I would fix the problem with the one he has. it had no 3rd gear I took it apart and found the 3-4 clutch burned up so I...
View
2006 Chevrolet Impala LTZ 3.9L drivers side air VIN: 2G1WU58106
happy friday everyone.im not sure which way to go on this car.it sure seams like the mode door motor,untill while watching the scanner and turning the dial it would normally stay around 140.some how we found by turning the dial to warm then to cold at a faster...
View
1989 Oldsmobile 98 Regency 3.8L blower fan VIN: 1G3CX54CXK
Customer was refered to me by another shop because the blower on this car was inoperative.The blower was replaced and it didn't fix the problem.This vehicle has the Electronic Climate Control and has a blower control module versus the standard resistor assm to...
View
2005 Saturn Vue 3.5L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 5GZCZ53495
Customer states vehicle runs rough in the morning. Only in the morning. Let vehicle sit overnight. Yes, it runs rough. Misfires, Hard to start, pops, stalls... Sounds like possibly out of time. Clears up as it warms up. any perticular place to start here? I ... Trouble codes: P341, P0300, P303, P0580
View

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Skylark Custom 3.1L egr valve passages VIN: 1G4NV55M8R
WELL WE DID FIND SMALL AMOUNT OF COOLANT LEAKING INTERNALLY, AND THE CYLINDER INTAKE NEXT TO THE COOLANT PASSAGE (THAT WAS LEAKING EXTERNALLY) HAD SOME VERY SMALL DROPLETS OF COOLANT ON THE BACK OF THE VALVE. IT IS POSSIBLE WE SPILLED IT DURING INTAKE REMOVAL ...
13
1999 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52K7X
I switched the O2 sensor to a Gm unit. I ran new wires from O2 sensor to computer. I installed new mass air flow meter. New wiring haress to Flow sensor. The fuel pressure is good right on the mark. No matter what I do. Cause a vacuum leak or load the engine ... Trouble codes: 1133 (O2 Insufficient Switch of O2 sensor).
6
1997 Chevrolet K1500 Silverado 5.7L axle actuator VIN: 2GCEK19M4V
To fix the problem, I got the customer to get another wire pigtail from a junkyard. The wire positions are different in the replacemant plug. The center terminal is not used, the wire that was in that position (blue) instead goes to terminal D, which I underst...
5
2001 Chevrolet Suburban 2500 6.0L tow/haul light VIN: 3GNGC26U81
Thanks to all who replied. Put a new leveler/switch in and now works ok.. Never seen this before, something to remeber on these styles of trucks. Still would like to know why there isnt any info on this. Seems to be a common problem with this wiring set up...
8
2002 Chevrolet Trailblazer LS 4.2L Alignment VIN: 1GNDT13S82
I apologize for the delay. Did not get another Trailblazer/Envoy in for about 2 weeks, Even for an oil change!!! (took a vacation also), then just plain forgot. Go figure. Thanks once again for everyones advice. The bolts are mounted vertically and are the b...
14
2006 Chevrolet Impala LT 3.5L Electronic VIN: 6728968976
thanks to everyone who replied . the actuator fixed it. motor was shorted inside actuator
8
1997 Pontiac Sunfire SE 2.2L rf speed sensor VIN: 1G2JB5242V
hi everyone, thank you for the responses they have been very helpfull... so i took alot of your advice and began doing a pull test and BEHOLD, about 2 inches from the connector at the wss the wire was broken...i repaired the wire cleared the codes and so far...
16
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next