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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 21, 2006
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
1992 Cadillac Brougham 5.0L upper column VIN: 1G6DW51E6N
Customer towed in his Caddy without a steering wheel. He replaced his ignition cylinder himself but could not reassemble it. These old style GM columns involve using a steering wheel remover to compress the spring plate so the retainer can be removed. This col...
1999 Cadillac DeVille 4.6L cruise control VIN: 1G6KD54Y8X
ran test charts for cruise module-o.k. ran test on brake switch-o.k. ran test on speed sensor-o.k. checked continuity, & operation of traction control switch-o.k.
1991 Chevrolet K1500 Cheyenne 5.7L heater VIN: 2GCEK19K9M
Posting this for a co-worker. Here is HIS email to me: "My truck is making a gurgling sound coming out of the heater box when at running temperature. It gurgles as I slow down at stops and the intensity slows with engine RPM as though it is rushing through a...
1997 Chevrolet Malibu 3.1L cruise control VIN: 1G1ND52M6V
Hello everyone, This Malibu had a couple problems. It was setting two evap codes, one o2 code, and p1662 which is a cruise control inhibit circuit code. And the heater control along with the windows and cruise would all stop working. I found a bad ignition swi...
1999 Chevrolet S10 LS 4.3L Intermittent no start VIN: 1GCCT19W2X
This truck has come into our shop a couple times for a no start overnight and while sitting for extended periods. The vehicle will turn over but will not fire. Did a fuel pressure check and is around 62 psi spec is 60-66 psi. Went through basic checks found we...
2002 Chevrolet Silverado 1500 5.3L rotors VIN: 2GCEC19V92
Hey Guys, I have to inquire about this specific vehicle regarding extreme brake rotor wear that seems to be caused from hard pads. I have seen this problem several times, primarily on GM trucks before. My customer has original mileage on this truck and is ver...
1984 Oldsmobile Cutlass Supreme Brougham 3.8L rear brakes VIN: 1G3AM47A7E
Hi people, we have had alot of brake line failures lately. This particular olds had line rusted above trans crossmemeber at clamp. Replaced hard line. Cannot get fluid to bleed out rear brakes. Have pressure at mastercylinder and inlet to combo valve. Brake la...
2001 Oldsmobile Intrigue GL 3.5L Starting
hello fellow techs, again this is the best damn site ever for mechanics! I am at home and do not have correct vin. this is an 01 olds intrigue w/3.5l. towed in for no start. no ground signal from pcm to crank relay. if i ground relay right away after turning k...
2000 Pontiac Grand Am SE 3.4L wheel bearing? VIN: 1G2NF52E8Y
Hi folks: My research of IATN's Knowledge Base leads me to think I have a typical case of popping/snapping noise that a lot of members attribute to using aftermarket replacement wheel bearings as opposed to GM supplied ones. I have a problem with the universal...
2000 Pontiac Bonneville SE 3.8L Stall VIN: 1G2HX54K0Y
Hello, I would appreciate any help I can get with this car that got towed into are shop.The vechicle is a 2000 pontiac bonneville with 3.8 vin K engine.this is the non supercharged version.The problem with the vechicle is it starts and only runs for about two ... Trouble codes: P0101 (Mass or volume air flow A circuit range/Performance), P0121 (Throttle /Pedal position sensor/Switch A circuit range/performance problem)
2002 Pontiac Sunfire SE 2.2L rear bk/abs VIN: 1G2JB12492
hello to all from texas well techs i have this sunfire that when you slightly hit the brake {a little harder than a normal stop} the right rear brk and sometime both rear wheels lock down and abs module is activated. we have removed the wheels on two seperate ...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Century Special 3.1L cal.ft sticking VIN: 3G4AG55M2R
Thank to all for your help,we like most of you belive the booster is at falt but, our costomer has no more $$$ to spend till next pay check,she on fixed incomebut we will fix it next time shes in.THANKS AGAIN TO ALL!!!
1992 Chevrolet Beretta 2.2L No Start VIN: 1G1LV134ON
Habe to get back on this one soon will update then closing , just havent had time to get back to it. thanks again for the helpful and thinking out of the box i got stuck in rut .
1997 Chevrolet Blazer 4.3L Misfire, MIL Lamp on VIN: 1GNDT13W4V
Well its finally fixed! Thankyou to all that replied to our help request. After we got some more information from the customer and found out that he drove it on the highway for an extended period of time while it was overheating it started to run rough. We end... Trouble codes: P0306 (Cylinder number 6 misfire).
2000 Chevrolet Impala LS 3.8L Poor Fuel Economy VIN: 2G1WH55K2Y
customer agreed to pick up car and run until gas light comes on then filling the tank to make sure we do not have a sender unit problem. thanks for the help
2001 Chevrolet Impala 3.8L Cranking Circuit VIN: 2GIWH55K61
The car has been starting every time for over a week now! I received some great suggestions ranging from 'don't forget the basics ' such as battery connections etc. to some tests hints such as the fuse 'drag test'.In checking components such as the relay conne...
2001 Chevrolet Venture LS 3.4L abs VIN: 1GNDXO3E71
today another shop took the car for us because the air bag light also went on.They found under the driver,s seat a module for the air bag that had rust by the connectors.We knew and looked under rugs for rusty connections , but was suprise about this one.They ...
2002 Chevrolet Suburban 1500 LS 5.3L no rear driveshaft speed VIN: 1GNFK16Z13
thanks to every one! i replaced the transfer control mod and its been working great i now am reciving my prop shaft speeds from the t/c to my scanner before i was only getting the front one. thanks for all your time and knowledge. aaron (troups son)
2004 Chevrolet Suburban 2500 LS 6.0L recirculation door actuator VIN: 3GNGK26U34
Alan from Wyomiing is the man! The recirc door was over travelling. I installed an additional cushion to stop the door a tad sooner and it works beautifully now. 38 degrees @ 1500 rpm. Lo side is @ 32psi hi side @ 250psi. Thank you!!!
1998 Pontiac Sunfire SE 2.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 3G2JB1246W
Hi, folks. Thanks for the replies. After wiggling the harness around at the pcm, I could not duplicate this concern. I informed the customer to please tell me if it happens again, and have not yet heard back. I am assuming its been working OK but am doubtful o... Trouble codes: P0300 (random cyl misfire), P0171 (fuel system lean), P0172 (fuel system rich), P1133 (O2 insufficient switching).
1997 Saturn SL2 1.9L No Start, Hesitation, MIL Lamp on VIN: 1G8ZK5275V
Thanks to all who replied to my help request. Tech re-checked all grounds, checked for a possible bad conn in trunk none found. Checked temp sensor for cracked housing or coolant intrusion into the harness none found. plugs wires ok. customer has decided to ta... Trouble codes: P0336, P0656, P0733, P0741, P0744, P0749.
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