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Professional Automotive Repair Technical Discussions for October 5, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick Century Custom 3.1L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2G4WS52J22 Looking at this from another shop. Code sets randomly but bucks &or missfires under load & light accel constantly. I have followed mitchell flow chart with no help as far as the code goes. I have done a crank relearn since pcm was replaced hoping it would now ... Trouble codes: P0336 (CKP circuit performance) |
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| 1992 Cadillac Allante 4.5L Excessive Emissions VIN: 1G6VS3387N This car is in for an emission failure. (see above #'s )it calls for a 2 speed idle / cruise test. the car appears to be controlling the fuel up to a point, Block learn stops adjusting at 118, no codes stored. will not go any leaner. if you test it on the road... |
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| 2000 Cadillac DeVille 4.6L left rear tire wear VIN: 1G6KD54Y7Y the left rear wheel has tire wear on the inside from too much negative camber. there is about a one-half degree from being in the proper specification. there is no factory adjustment and there is no available aftermarket adjustment method out there to my knowl... |
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| 1993 Chevrolet Cavalier RS 2.2L unknown VIN: 1G1JC5243Y i have an unusuall request. we have a cust. that has a son in daytona beach. he has a 93chevy cavalier with a driveability problem. mom wants us to find a very reputable,and very good shop. someone who knows what they are doing. if anybody knows of a good shop... |
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| 1993 Chevrolet K3500 Silverado 6.5L Excessive Emissions VIN: 1GCHK33FXP This vehicle smokes heavily under accleration under heavy load. When you let up off the pedal, it stops smoking. Is there any way to check to see if the oil is bypassing the turbo? Any suggestions appreciated. |
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| 1996 Chevrolet S10 4.3L temp gauge Engine temp problem ,dash gauge reading changes 195 to 210 degrees ever one two miles back and forth. after driving for 25miles temp reads normal 195 stays there. only in cold wheather 40deg. or colder Does not have a problem in summer time. thanks for any hel... |
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| 1999 Geo Metro LSI 1.3L 3-4 Shift VIN: 2C1MR2222X Hello all. This my first post so here we go.I need some info on p0751,alldata doesnt list it at all.I dont do to many tranz repairs, but is a good costomer. From the info i got from alldata there only apears to be only two solenoids in the trans. Alldata list ... |
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| 1998 GMC K2500 Sierra SL 7.4L Heater core VIN: 1GTGK29J8W Hi guys, I have this truck back for the fifth time for a heater core. Needless to say the cust. isn't very happy. The voltage in the coolant is about 200 mv. or so. The ph is 9.1 or so. The last core I put in, I ran a ground wire from the core to the to the bo... |
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| 1998 GMC K3500 Sierra SL 6.5L Dies VIN: 1GTHK39F2W Truck dies intermittantly. Im thinking the fuel shut off driver. Is there a good test to verify. could use inputs Trouble codes: P0236, P1216 (Fuel Driver) |
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| 1999 GMC K2500 Suburban 5.7L ABS Module VIN: 1GKGKROXJ7 this vehicle exhibits an ABS brake action just prior to a normal complete stop on dry pavement,like you were in a full blown panic stop on wet pavement.we checked the DTC C0222 diagnostic procedure and the results were OK.during a road test i noticed 2 things ... |
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| 1992 Pontiac Firebird Trans Am 5.7L remote door lock VIN: 2G2FV22P6P does any one know how to program the keyless entry remotes on this car this car is mine and the remotes didnt come with it i bought some from gm but i would like to program them myself if possible thanks a lot for your help |
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| 1996 Pontiac Grand Prix SE 3.1L Misfire, MIL Lamp on VIN: 1G2WJ12M4T Hi, thanks in advance for any help you can offer; Vehicle came in with misfire complaint, visual inspection of ignition wire condition revealed cracks in several plug boot ends, coupled with a P0305 misfire dtc. Same symptoms after replacing plugs and wires. ... Trouble codes: P0305 (CYLINDER 5 misfire) |
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| 2000 Pontiac Grand Prix SE 3.8L air bags VIN: 1G2WP52KOY we have this car that we did the transaxle on and a day later they are calling us saying the air bag light has just come on, we tested it and it has a code 0026 open on drivers,we tried to clear the code but it comes right back on, from everything i can find t... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1990 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR54C2L Thanks for all the responses. After some more digging and a compression test and remove one valve cover it turned out to be a broken camshaft. |
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| 1986 Cadillac Fleetwood Brougham 5.0L a/c compressor VIN: 1G6DW69Y2G after receiving info from felow techs i found out that the tps was at 0.8 volts when accelerating between 2 to 3 k rpms tps signal to ecm is above 3.0 volts which is too high adjusted tps to 0.49 volts at idle , now when raising rpms high the ecm want take awa... |
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| 1979 Chevrolet K10 Cheyenne 5.7L park VIN: CKL1495203 had to pull and replace park pawl worn on end thanks to all who replied great site alot of help |
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| 1995 Chevrolet S10 2.2L temp gauge VIN: 1GCC51948S this one is fixed and gone. we pulled the water pump and all of the fines were rusted off. after replacement every thing whent back to normal includeing the heat. thanks again for the help john |
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| 2000 Chevrolet Suburban 1500 5.3L Coolant loss VIN: 3GNNFK16T2 We put dye in engine and inspected frame for possible coolant leaks to rear heater - ok. No coolant thru intake gaskets like earlier models. Pulled cylinder heads , pressure test ok. Re installed with new gaskets and head bolts. So far ok, Has been one week no... |
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| 2001 Chevrolet Suburban 1500 5.3L abs pump runs VIN: 3GNEC16T62 The responses all confirmed the ECBM was bad. I knew the motor was ok because it was running, and did not blow fuse. My main concern was what was the fail safe provision for when the pump ran non stop. I was concerned the hydraulic unit migh have been snookere... |
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| 1995 GMC K2500 Suburban 6.5L speedometer and tach VIN: 1GKGK26F2S Well,first like to thank you all for your help.when i had woke up this morning after placing my request at 10.30 last night.I had one responce from dan from maryland.off to work i went thinking about unhooking that alternator.so i unplugged the regulator well ... |
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| 1999 GMC K3500 Sierra SL 6.5L engine losing coolant VIN: 1GDHK33F5X Hey, Done the test that everyone suggested. I found that the heads were cracked and I told cust what repairs would cost. Cust decided that it would be better to trade. Thanks for all the information, cust had done some checking of his own. And he decided t... |
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| 1999 Oldsmobile Intrigue GX 3.5L Excessive Emissions, Stall, Misfire, MIL Lamp on VIN: 1G3WH52H7X retested power supply to pcm and found that voltage on pin 19 of c-1 connector was low some times 12v other times 6-8.6 volts and when it was low problem occured traced to defective ignition switch replaced and all is well thanks for the reply |
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| 1998 Pontiac Grand Prix GT 3.8L Hesitation, MIL Lamp on, OVERCHARGING VIN: 1G2WP52K1W thank you all for your time. retraced harness from alternator to computor, ok found orange sense circuit wire had corrosion in loom. we had voltage from sense fuse in underhood fuse panel, fuse ok, removed loom covering from under hood fuse panel to behind bat... Trouble codes: P0560. |
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| 2000 Pontiac Grand Am GT 3.4L 1336 VIN: 1G2NW12E5Y after reading the replies and going back over our notes, we found that this car had additional problems. the shorted wiring had also got the pcm too. we replaced the pcm and did the relearn and so far so good, car runs fine. we like to tell every one thanks fo... Trouble codes: 1336 (ckp variation relearn). |
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