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Professional Automotive Repair Technical Discussions for June 9, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Park Avenue 3.8L Hesitation, Stall, Misfire VIN: 1G4CW53LXM Hi, Why does all teh hard to repair cars have to be owned by a relative (My parents) This one has very low power under acceleration and will backfire on acceleration and sometimes when raising the RPM in park. I've done the noted repairs and tested the fuel pr... |
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| 1995 Chevrolet Corvette 5.7L key fob VIN: 1G1YY22P9S hello iatn i have a 95 corvette and im trying to figure out how to re-program tha key fob |
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| 1995 Chevrolet K1500 5.7L Hesitation VIN: 1GCEK14K85 Truck goes into a limp mode. No tach or speed info shown on the dash but have both on the scanner. Truck has good power in reverse but takes off in in a high gear in drive. Thanks in advance for your help. Jack |
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| 1996 Chevrolet Monte Carlo Z34 3.4L Parking Lights, Tail Lights, and Instrument Panel VIN: 2G1WX12X5T I have a Monte Carlo here that has headlights that come on, brake lights work, but no tail lights, cluster does not light up, and front parking lights do not come on, unless using a turn signal or hazards. Really have no idea where to start, may be just a grou... |
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| 1997 Chevrolet Lumina 3.1L security VIN: 2G1WL52M3V Hello everyone and thanks for taking the time to help. We have this Lumina that will start and run for about 4 or 5 seconds and then shuts off. The security light blinks when it stalls. We have read some other posts that say to perform the reset procedure on t... |
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| 1997 Chevrolet Lumina 3.1L steering rack VIN: 2G1WL52M5V car came in for hard steering. disconnect tie rods and found stuts would not turn , replaced siezed bearings, now we have a hard or binding issue when turning to the right. returns to the left normal. suspect the rack but just wanted some input if any one has ... |
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| 2000 Chevrolet Silverado 2500 LS 6.0L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCFC29U8Y Vehicle brought to us from another shop due to engine misfire. Got codes po158, po300, po171 and p0405. When the engine goes into closed loop, the engine will misfire on number 2,4,6, and 8 which is one bank. Number 1,3,5,7 has no misfire at idle. Replace the ... Trouble codes: P0158 (p0300-), P0300 (p0405-), P0405 (Po171-), P0171 |
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| 2002 Chevrolet Impala LS 3.8L Passlock? VIN: 2G1WF52E02 This vehicle came to me with a complaint of strange happenings with the keyless entry system.customer states that one night his wife went to church and got trapped inside car because doors did not unlock automatically after puting it in park and shutting the c... |
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| 2003 Chevrolet Silverado 1500 HD LS 6.0L 4-3 down shift VIN: 1GCHK29U23 upshift are all good with scan tool say trans in starting in 2 gear when its in 1 when it shift in to 4 it say that it in park nev when the truck down shift to 3 get a grinding noise that does not go a wait until it upshifts |
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| 2005 Chevrolet Uplander 3.5L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy Van was towed to me with what was called a fuel pump. I started van right up and as the idle came down it started running worse and worse. Eventually it started smoking black out the tailpipe and would barely idle. Scanned found p0171 and rpm higher than expec... Trouble codes: P0171 |
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| 2005 Chevrolet Equinox LT 3.4L AC Compressor Clutch VIN: 2CNDL73F65 Hello People Thanks for taking the time to read this. This 05 Equinox will not run the AC compressor when the heater fan speed is set to 3 or 4. Compressor runs fine with the blower fan in position 1 and 2. The AC request to the BCM switches to "no" as soon a... |
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| 2007 Chevrolet Uplander LS 3.9L Abs Lite VIN: 1GNDV231X7 Thanks for reading this post in advance. This van came in with no abs complaints, just that the abs lite had came on. A quick scan produced C0035, left frt wheel speed circuit out of range, and c0036, lf wheel speed sensor fault. I drove the vehicle with a g... |
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| 1991 GMC C1500 Sierra 4.3L Control Head VIN: 1GTDC14Z4M Hey guys and gals, Vehicle arrived after a visit to another shop. They replaced recirc door actuator to cure a banging noise in the hvac box after shutting truck off. All 3 actuators appear to be working, but the all of the arrows for the temp selection flash ... |
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| 1999 GMC Savana 3500 5.7L Hesitation, Cuts out VIN: 1GDHG31RXX the truck runs fine when it is at idle but if you put it in gear n try to take off it will not go n starts to make a loud poping sound inside the intake, some times it will take off just fine then do it , i just floor it and it acts like it got a boost of powe... |
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| 2004 GMC Sierra 3500 6.6L Hesitation, MIL Lamp on VIN: 1GDJC34224 This truck misses at times. i have read two tsb related to my concern. 05-06-04-047b and 09-06-04-034. i didnt find any wires rubbed threw and i wiggled #7 injector connector but cant get it to duplacate the concer. If the truck is driven the problem comes bac... Trouble codes: P0207, P2146 |
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| 1996 Oldsmobile Cutlass Supreme 3.1L Poor Idle Quality VIN: 1G3WH52M2T Hello Everyone, This one is driving me nuts. When you first start the engine it idles fine for about 10-15 seconds, then races to about 2500 rpm, then after about a minute it shoots up to 2700-2800 rpm and stays there. Have a code p0507 ( idle control system (... Trouble codes: P0507 (Idle control system rpm to high) |
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| 1993 Other GM 4900 466CID start wont engage VIN: 14FG856751 Ok guys I have a international 4900 fire truck with a dt 466. the department complaint is the truck will not start. I go the the station, check and sure enough no start. If you jump that starter selnoid, cranks over and fires up. We ran test on the system and ... |
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| 2002 Saturn L200 2.2L Odometer VIN: 1G8JU54F32 Everything on dash works great except the odometer and trip dont record any mileage. Odometer stuck at 51,600 trip at 0.0 |
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| 2003 Saturn Ion-2 2.2L No Start VIN: 1G8AZ52FX3 I have an intermittent no crank no start condition the problem usually occurs first thing in the morning customer will try to start the vehicle about a half hour later and car will usually start i replaced the ignition switch and performed the passlock relearn... Trouble codes: U1301 (Class 2 circuit short to battery conditions) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1989 Chevrolet K2500 Cheyenne 5.7L Surge, Stall VIN: 1GTGK24K0K Well this one was tough to deal with considering the type of customer we were dealing with. After finally agreeing to let us pull heads and still finding nothing obvious, customer decided to have us replace heads with reman ones, as well as replacing inta... |
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| 1991 Chevrolet Lumina 3.1L injector pulse VIN: 2G1WN14T7M thanks for all the help I ohmed the injectors and found 3 that were under 10 ohms replaced all injectors with used ones that ohmed 12ohms runs great thanks!!! |
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| 1998 Chevrolet K2500 Cheyenne 7.4L MIL Lamp on VIN: 1GCGK29J8W Last update is I replaced one of the post cat o2 sensor with a G.M. part and the readings are not what I am use to but the CEL does not trip after test drive. Truly unknown if this totaly repaired customer will drive for awhile and let me know. Thanks to every... Trouble codes: 137 (O2 low voltage bank 1 sensor 2), 172 (Fuel trim rich bank 1), 175 (Fuel trim rich bank 2). |
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| 2001 Chevrolet Silverado 2500 HD LS 6.6L No Start VIN: 1GCHK23141 THANKS TO ALL FOR HELP, WE REPLACED THE HIGH PRESSURE PUMP AND GOT IT RUNNING AFTER BLEEDING ALL THE AIR OUT OF THE SYSTEM. STARTED IT AROUND 10 TIMES IN THE SHOP, IT STARTS NOW, BUT SEEMS TO HAVE AN EXTENDED CRANK. TEST DROVE TRUCK, RUNS OK BUT NOW A NO ... Trouble codes: P0094 (Fuel system small leak detected). |
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| 2006 Chevrolet HHR LS 2.2L steering assist quitts VIN: 3GNDA13D66 thank you michael i did put dielectric after a came back and read your reply, but first thing this morning i drove car with volt meter attached to the main power wire going into the steering module/motor and i lost voltage before i got out of the shop. i foll... |
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| 1998 GMC School Bus Chassis B7T042 6.5L No Start, Stall VIN: 1GBHG31F9W faulty injection pump, process of elimination. Thank you all for your replies and help. I was looking for a silver bullet. Does not exist on this job. |
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