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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 10, 2010
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
1988 Chevrolet P30 7.4L a/c bracket VIN: 1GBKP37W3J
I need your help! I had a young tech take apart this engine.He is no longer around.I cannot figure out the a/c bracket configuration.If anyone has a picture of the front of a 454 motorhome engine showing the bracket set-up E-Mail to me at [...]@wildblue....
1995 Chevrolet Tahoe LT 5.7L Transmission VIN: 1GNEK18K3S
This is my own personal vehicle and my first Tahoe. After this experience, it will probably be my last too, lol :). I understand that there are probably a few different repairs needed but I figured I would throw all the symptoms out there because the truck has...
2000 Chevrolet Impala 3.8L bcm VIN: 2G1WF55K5Y
car came in for intermittent no start. tested for draw and had a draw ranging form 1.5 amps to .04amps. narrowed it down to the bcm/ecm/cluster fuse. unplugged bcm and draw does away. unplugged cluster, radio, light switch, steering column wires, all relays an...
2001 Chevrolet Impala 3.8L no dim lights VIN: 2G1W55K319
car came in no dim lights drl will work if you have the dimmer on brights . I can ground the dim lights & they work but all the time . checked all the grounds according to ground dis. OK , no signal from multifunction for dims tried one no change . tried bcm n...
2003 Chevrolet Malibu 3.1L Charging Indicator VIN: 1G1ND52J13
Hi all. Thanks in advance for your help on this one. Last week our customer came in complaining that the charging indicator light comes on during a cold start and stay on for about 5 seconds. My initial assumption was that this should be a normal lamp check so...
2005 Chevrolet Equinox LS 3.4L speed sensor VIN: 2CNDL63F05
I have a c0036 code lf wheel speed sensor, i drove the car wt the scan tool to see the data on the sensors, and i see tha, if go 40 mph on the car, scan tool is reding 80, so it look like is redeing doble of what the speed is, if any one seen this i will apch ...
2006 Chevrolet Silverado 1500 LS 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GCEC14Z56
This vehicle arrived here after having repairs performed at another shop (plugs, ignition wires & both knock sensors. The mil was on and had code p0300 random misfire detected. The misfire is specifically at cylinder #1. The misfire is only at idle. Checked en... Trouble codes: P0300 (Random misfire detected)
1996 Pontiac Sunfire SE 2.2L No Start VIN: 3G2JB1248T
Customer brought in car as intermittent no start. He had already replaced plugs wires coils etc.I Scanned and found invalid key code. installed new passlock & tumbler all was good. Next morning get call that car will not start. Towed it in and right away notic... Trouble codes: P1601 (Loss of serial communication)
2002 Pontiac Grand Am SE 3.4L No Start VIN: 1G2NF52E72
This one was towed in for a no start and dead battery. After replacing battery it started and ran fine. On restart it would cranks but not start security light is not flashing. It has spark, fuel pressure, but no injector pulse. The inj. do have B+ and it will... Trouble codes: P2965

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac DeVille 4.6L steering column VIN: 1G6KD54Y5X
Thanks for the response, sorry for the lack of details, I have a new tech who is just learning of the wonderful world of IATN! Salvador was the winner, we removed the mechanical linkage from the column and lubed the heck out of it. Grandma is now shifting her ...
1982 Chevrolet Corvette 5.7L Stall, high idle- at times VIN: 1G1AY078XC
Thanks to ALL that replied, I wish I had the time to thank you all in person! there was no vacuum leak, the car had an aftermarket ecm and prom (hyp---ech), so we obtained a good used ECM and OE prom, made sure all the idle and timing settings were to spec - ...
1990 Chevrolet Lumina 3.1L Poor Idle Quality, Cuts out, Stall VIN: 2G1WL54T8L
thank you all of you it tuned out that the injectors were bad having an ohm reading of 5.00 arowned there replaced injectors car runs like a champ
1993 Chevrolet Cavalier RS 2.2L Starting VIN: 1G1JC8443P
Thank you for all of the replies, after informing the customer of the needed testing and inspection he declined to repair the car. We believe that the fix would have been the flywheel as it had a little wobble while cranking.
2002 Chevrolet Suburban 1500 LT 5.3L Cuts out, Stall VIN: 3GNFK16Z53
I live in a very remote area and some times these vehicles do not get back to me for weeks at a time. I don't have this one figured out yet, but IATN wants me to close this request, and I cant figure out how to update it again. So I guess this is a close with ...
2002 Chevrolet Camaro 3.8L oil pressure VIN: 2G1FP22K12
well fellas most of you hit it on the nose. i first pulled valve covers and found no problems. So then i pulled the pan and found the pickup screen clogged.What i thought was weird is there was no sludge anywere else. I found out when customer picked up car sh...
2003 Chevrolet Monte Carlo LS 3.4L hard starting VIN: 2G1WW12E93
thank's for all the help,turns out the fuel pump was weak,almost no flow,pressure regulator leaked slightly overnight with vacuum hose off.replaced that too. i rechecked fuel pressure with transducer instead of gauge and hose,rear pressure was under forty psi....
2004 Chevrolet Suburban 1500 LS 5.3L 4x4 VIN: 1GNFK16Z24
The customer dropped off the vehicle and I disconnected the ATC fuse in the under hood fuse box and reconnected in about 30 seconds and the TCCM came back online.I did not need to replace or program this one.I have another one coming in next week,we will have ...
2000 GMC Sierra 1500 SLE 4.8L oil level VIN: 1GTEK19V3Y
Hoping this one is fixed. Customer has had vehicle for a while now and says the oil is not coming up. I replaced 2 injectors and the fuel regulator. Also unhooked the evap system. If the oil does not rise then I will hook up the evap again. Thanks to any of yo...
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