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Professional Automotive Repair Technical Discussions for March 2, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1983 Chevrolet Camaro Z28 5.0L straight tracking VIN: 1G1AP87H1D Vehicle will not track straight on a crowned roadway. When driving on a crowned roadway, vehicle drifts out of straight ahead track and when reaching highpoint of roadway, it pulls firmly in either direction equally. Problem is slight on a level roadway. Probl... |
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| 1989 Chevrolet Corsica 2.0L Hesitation, Surge, Cuts out VIN: 1G1LT5413K This vehicle came in for the hesitation and stalling it had two codes. One was system lean and the other was system rich. It had a new O2 sensor, ignition module, coils, plugs, fuel filter, fuel pump, wires, map sensor, tps. The vehicle would go into closed lo... |
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| 1992 Chevrolet K2500 Silverado 5.7L Overdrive VIN: 2GCGK29K6N Hello there, have an old Chevy here giving me fits. Truck originally came in with only second gear and reverse. Original codes were 39 - Torque converter clutch stuck off. 68 - Overdrive. 75 - System voltage low, and 87 - Solenoid B stuck off. Replaced A and B... |
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| 1996 Chevrolet Express 1500 5.0L MIL Lamp on VIN: 1GBFG15M1T This van has had a new PCM, full tune-up, coil, and module, all wiring between pcm and icm has been checked and double checked. With an aftermarket module code sets after about a day and is then continous. We replaced module with an OEM it lasted about 1 month... Trouble codes: P1351 (Higher than normal voltage detected during cranking) |
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| 1997 Chevrolet Cavalier LS 2.4L Starting VIN: 361JF12T4V i have this car,motor is 2.4,no star,i do not have spark,at all,i change crank sensor,check compression is good,check all ground are ok,i do not have injecction pulse,i suspect may be module,or missing somethig else.i apreciate all of you to help me w,and than... |
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| 2001 Chevrolet Express 3500 5.7L MIL Lamp on VIN: 1GCHG35R21 I have 2001 Chevy Express 3500 in the shop that had the security light on with code U1192 and P1626. I've been chasing after this vehicle for couple of days now and running out of ideas. All the wires and the serial class 2 wires from the passlock module to th... Trouble codes: U1192 (Loss Passlock/EVO/VTD Communication), P1626 (Anti-theft System Fuel Enable Circuit) |
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| 2003 Chevrolet Corvette 50th Anniversary Edition 5.7L No Start VIN: 1G1YY22G03 towed in no start condition.. had new key made and still have same results [no start]. are the having problems with the ignition swicthes like the other gm's around this year? or could it be a bad door module? the "passenger" phrasing in the code is throwing m... Trouble codes: B2723 (passenger key detection circuit open/short) |
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| 2003 Chevrolet Tahoe LT 5.3L t-case VIN: 1GNEK13713 We recently replaced the encoder motor, the original was inop, The truck was fine for about three weeks, then the owner returned to say the truck was in 4auto but felt like 4high, also she keeps the truck in 4auto and after leaveing it parked for a few hours i... |
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| 2006 Chevrolet Trailblazer LS 4.2L power windows,radio,a/c controller,door locks, VIN: 1GNDS13S36 this vehicle came in with the power windows not working and radio,also a/c controller,power seats,power mirrors,interior lights,power door locks,rear wipers,all of these items are not working i have checked all the fuses and all are good,but i cant find a diag... |
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| 1996 GMC C2500 Suburban 6.5L Mechanical VIN: 3GKGK26F4T looking for a little help on a 6.5 dsl. truck has been a company truck for all but the first 30,000 miles. truck has been very well maintained. the other day my wife was coming into town. (55 mph) she went to pass a car and kicked it down. after doing so truck... |
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| 1997 GMC K2500 Sierra SL 5.7L MIL Lamp on VIN: 1GTGK24R4V this is a strange problem. came in with a cel checked and found the codes listed above. traced down and found the eng 1 fuse blown 20 amp according to the wiring diagram it controls the heated o2 sensors and egr valve canister purge valve cam and crank sensors... Trouble codes: P0102 (mass air flow), P0340 |
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| 1998 GMC Savana 2500 5.7L speed sensor reluctor VIN: 1GTFG29R3W veh, was brought to us from another shop(trans, rebuilder) they had rebuilt the trans, as a carry in, acording to them the customer had this prob, prior to rebuild, so to get to the point it has an eratic and bouncing speedometer, nothing we have done has chan... |
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| 2002 GMC Envoy SLE 4.2L No Start VIN: 1GKDT13592 This Envoy was towed in after the owner tried to fix it. I have p1515 and p1516 predicted vs actual thor position corralation error Codes. I have tested per mitchell. I'm looking at replacing the TB module. I have not had to replace one yet. So I am asking if ... Trouble codes: P1515, P1516 |
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| 1995 Oldsmobile Aurora 4.0L alt. VIN: 1GTHK23255 my ? is,without havn a tech one scan tool,what is the best way to figure out what is my problem,ecm control,or alt.failure,the car show's 15.8 volts when running but standing batt volts is 9.8v,codes are from history side,16,52,99,110,109,but nothing from curr... |
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| 1996 Oldsmobile 88 Royale 3.8L multiple VIN: 1G3HN52K7T Vehicle died while customer was driving. Towed in and suspected fuel pump. Drop tank and test pump out of vehicle tested good with 60psi. Checked circuits for wiring and found B+ on gray wire to pump and voltage varied by dash light dimmer on black ground wire... |
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| 1995 Saturn SL2 1.9L Unknown VIN: 1G8ZH5280S will shift from 1-2 but no further-check solenoids all pull 2-2.2 amps. Replaced valve body per previous posts-has codes 22-23-24 any help appreciated |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Chevrolet Camaro Z28 5.7L heater /low coolant VIN: 2G1FP22P5S WELL THANKS FOR ALL THE HELP A NUMBER OF YOU SAID TO USE A 4 GASS TO SEE IF THERE WERE HYDORCARBONS IN THE RADIATOR AND AFTER TRYING IT FOR TWO DAYS FINALLY GOT A READING ON A COLD MORNING. REMOVED THE HEADS ONE MORE TIME AND JUSTED REPLACED THEM. HAS NOT BEE... |
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| 1998 Chevrolet Blazer 4.3L kickback/backfire VIN: 1GNCT18WOW crossfire in cap changed cap and rotor thanks for the help |
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| 1998 GMC Savana 3500 6.5L No Start, Stall VIN: 1GTHG35FDW Good afternoon,we fixed this truck with all your help.90 percent of you suggested that the IDM module from being cooked under the intake frequently intermittenly will fail causing the runnability problem we had with this truck.With a dealer cost of about 475.0... |
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| 2002 GMC Envoy SLT 4.2L oil pressure VIN: 1GKDS13S52 this truck has a bad oil pump, the only way to test oil pressure is with the adapter that goes in place of oil filter. the pressure is 0 at idle warm, just as the gauge reads . thanks for everyone help on this. customer is not fixing the engine and is tradeing... |
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| 2003 GMC C4500 Topkick C4V042 6.6L will not exceed 65 k VIN: 1GDE4E1123 I received 3 replies, they were from Kevin, Monty and Kenneth some of the suggestions were, cluster, ratio adapter and computor. I am still working on it. Thanks, |
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| 1999 Oldsmobile Cutlass GL 3.1L Compressor VIN: 1G3NG52M0X Thanks to all...A lot of suggestions to try to jump pressure switch. I swapped in a know good switch and still no compressor. This car uses a combo low and high switch and not a seperate LPCO like they used to have. Swapped fuel pump and compressor relay ( sam... |
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