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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 12, 2006
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1994 Buick LeSabre Custom 3.8L tcc accumulator VIN: 1G4HP52L6R
Transmission repair is my weak side, but I'm working on this one due to a broken reverse reaction carrier. I'm either missing a part, or worrying about one that doesn't belong. Inside the side cover, under the valve body, there is a place for a piston. In the ...
1997 Buick Park Avenue 3.8L air mix door VIN: 1G4CW52K1V
hi people,this one i thot was going to be a no brainer,but it has turned out otherwise...it came in for an air conditioner problem...it was blowing hot air out the driver and rear passenger vents while on a/c.passenger side front is doing ok but it seems that ...
1994 Cadillac DeVille 4.9L message cent VIN: 1G6KD52B8R
Customers complaint is that the "low oil pressure" message comes on at times. She says that it only occurs about once a week. We replaced the low pressure switch and she drove it a few days and said it came back again. Has anyone ever run into this. Vehicle ha...
1994 Cadillac Eldorado 4.6L transmission VIN: 1G6EL12Y5R
Hi everyone! I have this cadillac here that is having intermittent electrical concerns. There was quite a few codes in this car when it came and most of them have to do with serial data problems. We have Code 47 which is BCM to PCM serial Data Problem, Code 10...
1994 Cadillac Eldorado 4.6L body fuse 2 VIN: 1G6EL12YRU
94 eldorado making my brain hurt. Blows "body 2" fuse in rear trunk fuse panel when you drive a block. Will not blow if you sit in the shop in drive. Looked at the diagram and the fuse powers up the keyless entry module, RAPs system, among many other things. I...
1997 Cadillac DeVille 4.6L engine VIN: 1G6KD54YOV
This caddy came in with the customer saying it runs hot on the freeway. First we replaced the t-stat. We filled the bottle, ran it 'till hot (230F), shut down 'till cool, refilled and ran 'till hot. Now we got heat inside, Temp. staying between 235f - 200 with...
2003 Cadillac DeVille 4.6L Poor Idle Quality, Misfire VIN: 1G6KD54Y43
car came in without a mil lit. codes p0171,p0174,p0300,p1574 present. replaced spark plugs and boots, bg induction. car idled great. test drive recreated miss. no codes stored, miss fired over 300 times in a short time. every cylinder miss fire has a differant... Trouble codes: P0171 (p0174-), P0174 (p0300-), P0300 (p1574-), P1574 (testing and results)
1966 Chevrolet CORVETTE 327CID transmission VIN: 194676S122
this dailey driver came in last week stuck in first gear. we lubed the shifter and all seemed fine. after just a few days the vehicle came back again stuck in first. nobody here is familar with this set up since it does have a lot of age. has anybody seen this...
1997 Chevrolet K2500 5.7L down shift VIN: 1GCGK24R2V
Hello to all the members. This truck seems to be taking us for a ride. The customer brought it in initially for a surge while maintaining a cruising speed, we found the distributor was 12 deg retarded according to the snap on scanner. We reset the cam retard a...
1997 Chevrolet S10 4.3L Misfire, MIL Lamp on VIN: 1GCCS19X0U
The truck now has a multiple cylinder misfire that only becomes noticable when your going highway speed under light load. Just a fish bite kind of thing and maybe once in a while it gets bad enough to make the check engine light flash. Can not brake torque it ... Trouble codes: P0300 (Multiple cylinder misfire)
1983 Pontiac Firebird Trans Am 5.0L windshield washers VIN: 1G2AW87H8D
first time using iatn, hopefully i do everything properly ,car originally came in with a wiper motor that had to be unplugged to stop, replaced module and repaired that problem, then intermitent wipers stopped working-replacing wiper switch repaired that probl...
1999 Pontiac Grand Am SE 3.4L Left front speed signal
Hey all, This is my own car and as you all know, us techs dont get alot of time to work on our own stuff. So here it goes about a year ago my better half was driving in some rain and the abs light came on. Well i was gone for annual training in the national gu...
2001 Saturn SC2 1.9L 3-4 shift VIN: 1G8ZY12741
This transmission has normal engagements in every gear position. Reverse and forward. it does not slip at all. good reverse, good 1-2, 2-3 but it has a harsh up-shift in 3-4. also i have noticed that it has a hard 4-3. I am thinking in something mechanical due...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Regal GS 3.8L e.g. fuel gauge, electric window, door locks, VIN: 2G4WF5210V
hi thank every one who sent there replys ig switch fix it voltage drop whent from 12v to 7v and the longer u left key on voltage droped even more! thank you very very much. if ican help on euro cars let me know.
1992 Chevrolet Corvette 5.7L Cuts out, Stall, Misfire, MIL Lamp on, asr failure VIN: 1G1YY33P4N
replaed ecm with second new ecm. problem seems to be fixed. Trouble codes: 36 (high resolution problem), 16 (low resolution problem).
1997 Chevrolet Cavalier LS 2.2L Hesitation, Surge, Stall, MIL Lamp on VIN: 4G1JF3244V
found that customer had replaced fuel injectors with checker auto parts. installed new injectors and problem is gone. thanks for everyones assistance. Trouble codes: P0172 (fuel trim), P0507 (iac).
1999 Chevrolet Lumina 3.1L coolant system VIN: 2G1WL52M5X
I resealed the intake with the better Felpro gaskets and GM bolts that already had threadlocker on them.The gaskets from Felpro are very nice. I will never use GM intake gaskets on this type of engine again.The TSB that I listed before does NOT list the 3.1 (M...
2001 Chevrolet Impala 3.4L compressor VIN: 2G1WF52E51
Good day all, After reviewing replies I replaced the thermostat, pressure checked system, cleared codes and released the vehicle to the customer. To sum up the replies- The BCM recieves signal from HVAC module and sends signal to PCM. The signal has to be reci...
2002 Chevrolet Trailblazer LS 4.2L abs VIN: 1GNDS13S02
Thanks to all who replied. I had seen the tsb for this code and did do that, but I think that when the cust. lets it go for a while it kills the module. I replaced the module and the pump unit and all is well.
2000 GMC Jimmy SLE 4.3L 4wd\2wd wwitch VIN: IGKDT13W3Y
As recomended by fellow IATN members I replaced the button panel for the selection of 2wd or 4wd. The car has shifted properly ever since. Part was cheap so I'll keep a spare around for the next one.
1997 Pontiac Firebird 3.8L airbag light on VIN: 2G2FS22K2V
Thanks for all the input from everyone. The horn was still working with bad clockspring. However, a new clockspring was installed and everything is now working properly. Thanks to everyone again.
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