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Professional Automotive Repair Technical Discussions for January 17, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Chevrolet Astro 4.3L Misfire, MIL Lamp on VIN: 1GBDM19W1T Hi Y'all, This thing has us stumped. On the interstate @ 70 MPH or so every now and then it will stumble (missfire). Using the Snappy MT2500 and watching the mis fire count it will run about 255 per cycle but never has set a missfire code. It does set the P01... Trouble codes: P0106 (Map sensor system problem) |
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| 1996 Chevrolet Blazer 4.3L transfer case VIN: 1GNDT13WOT Truck came in with a customer complaint of feeling like the brakes are stuck on when in 4x4 sometimes...took for test drive with customer and verified complaint. Seems to feel like binding in t-case or front end. When we drive in reverse 20 feet or so, it will... |
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| 2000 Chevrolet Cavalier 2.2L wont move VIN: 1G1JC524DY customer driveing may have been shifting manulaly car quit moving wont go foward or back dropped pad fluid clean no debrie in pan thanks for any help |
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| 1964 GMC c60 327CID Mechanical VIN: 6525712223 I am in need of a repair manual for this transmission. Also need to find a parts supplier for seals,gaskets,bearing ,ect Thanks to all Mike |
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| 1997 GMC K2500 Sierra SL 5.7L Cooling Systems VIN: 1GTGK24R2V Customer brought this truck in for coolant loss and I found the intake gasket leaking on the passenger side front and some on the driver's side front. Putting intakes in will solve the problem but my question is why they have failed at this low milage? Does GM... |
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| 1990 Pontiac Grand Am LE 2.5L Excessive Emissions, Poor Idle Quality VIN: 1G2NE14UOL engine runs rich, no codes, all sensors within perameters. ignition system test, good spark, good ignition pattern. fuel integrater goes to 65 when throttle open, replaced injector and cranksensor. no different, simutec shows mat sensor out or range but scanne... |
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| 1995 Pontiac Grand Prix SE 3.1L temp gauge VIN: 1G2WJ122M1 The vehicle has high mileage, it came to me with an overheating complaint. I pressure tested the cooling system and found the lower intake manifold gaskets leaking coolant. After replacing the gaskets and t-stat I noticed, as I was allowing the cooling system ... |
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| 1996 Pontiac Grand Am SE 3.1L No Start, Stall VIN: 1G2NE52M4T Need Help from techs that may run across this before. 1996 Pontiac Gran Am SE with a 3100 SFI that starts every time and shuts right off within 1 or 2 seconds. The car has a Viper security system and a Remote car starting system installed. The car will start e... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Buick Century Custom 3.1L MIL Lamp on VIN: 2G4WS52J01 Thanks to all who replied. Flashing the PROM fixed the problem. Trouble codes: P1404 (EGR circuit problem). |
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| 1990 Cadillac Eldorado 4.5L Poor Idle Quality, Misfire VIN: I6GEL1330L After using a scope and monitoring the dwell, we found the Distribtor has a worn shaft causing random misfires. Thanks to you all!!! |
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| 1996 Cadillac DeVille 4.6L drain on battery VIN: 1G6KD52Y4T FIRST A SUMMARY OF THE NINE REPLIES. 1. Door jamb switch. 2 Instument cluster staying powered up. 3. Lumbar switches came up more than once but this car did not have. 4. Power antenna sticking. 5. Accessory relay in the fuse block under hood in front of the le... |
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| 1991 Chevrolet Astro CL 4.3L heating VIN: 1GNDM19Z6M i cant believe this one - we put a new t/stat in again - it ran 10 deg hotter & kept the pass compartment warm. thank for all the input |
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| 1995 Chevrolet Beretta Z26 3.1L heater VIN: 1G1LW15M5S well, the customer has yet to return, i did find out from most of the replies that the nipple on the manifold has the restrictor built in, this seems the most likley cause to me, closely followed by an air pocket in the system, thanks for the replies and i wil... |
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| 1999 Chevrolet C1500 LS 5.0L fuel gauge, radio VIN: 1GCEK14V4Z thanks for the help. it turned out to be a bad window switch back feeding the bcm. thanks again. |
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| 2002 Chevrolet Impala 3.4L headlights,interiorlight VIN: 2G1WF52E42 Thanks guys,I got two good reply's,it sounds like the bcm is to blame for it so it was send to the dealer because of extended warranty,and they replaced it and everything is good,thanks and have a good day! Ralph |
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| 1995 Geo Tracker 1.6L MIL Lamp on VIN: 2CNBJ18655 Brought Vehicle back in and went back to the basics after the wire circuit check were suggested. Found a inopperative egr valve, this lead us to a clogged vacumn line. Evidently the prior shop placed a b-b in vacumn line. Good fix in somecases, but not this on... Trouble codes: 15 (engine coolant temperature sensor), 51 (exhaust temperature sensor). |
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| 1992 Pontiac Sunbird LE Value Leader 2.0L No Start VIN: 1G2JC51H2N So it now runs. What I did this morning is order and install a new ignition module/coil assembly. Tried it and it is still the same. Start from the beginning and rethink. Verified top dead center to timing marks. found the damper turned about 10 degrees. Remov... |
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