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Professional Automotive Repair Technical Discussions for November 8, 2009 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1988 Chevrolet K1500 Silverado 5.7L Poor Idle Quality, Stall VIN: 1GTFK24K3J I am having a little trouble with my plow truck this year. This truck will lean out and die at idle. If I unplug the map sensor, it seems to run fine and the oxygen sensor starts to switch. But if I plug the sensor back in it slowly goes lean until it stalls. ... |
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| 1997 Chevrolet S10 4.3L Cuts out VIN: 1GCDT19X5V I have this 97 S10 4.3l that will cut out about 4 or 5 times while warming up driving down the street, just dies, fuel pressure drops to about 45-50 when this happens but no lower,can keep it running by feathering the gas, and when it stalls it will start back... |
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| 1997 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 1G2WP52K5V Vehicle had a code for heater circuit on front O2. Replaced O2 and code P1133-insuffiecent switching occured. Replaced O2 again, both times with OEM and code reappeared. Found no vacuum leaks, fuel pressure good. Watching O2 on graphing meter and at first it i... Trouble codes: P1133 (Insuffiecent O2 switching) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1997 Chevrolet K1500 Silverado 5.7L Front Differential VIN: 2GCEK19R5V About half the responses talked about replacing the harness and/or actuator. As I mentioned, this is a four wire feed and not the two wire actuator from the TSB. There is no position switch. It's part of the actuator. By the way, this appears to be a new ... |
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| 1999 Chevrolet C2500 5.7L Hesitation VIN: IGBGC24R8X Well thanks for all the good advice. I have gone throught this truck with a fine tooth comb. We are taking the heads off next week. Seems a running compression check showed that we have a valve problem. Thanks for all the great advise, I tried it all, that... |
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| 2005 Chevrolet Malibu 2.2L fuel gauge VIN: 1G1ZS52F65 sorry it took so long to close out this request for help but it took so convincing the customer to let me try a sending unit and also not related to the dtc was a bulletin for rerouting the wire harness so I did replace the sending unit and rerouted harness al... |
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| 2007 Chevrolet hummer 3.7L brakes VIN: 5GTDN13E17 thanks guys for all help.the simple problem i found is with brake booster.is not working properly.i am doing test and has water,rusty.and stuck,i replaced it.work fine.thanks buudys. |
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| 1989 GMC C1500 Sierra 5.0L Dash gauges and headlights/turn signals VIN: 2GTEC14HUK Finally fixed this vehicle.Theodore [...]. from Illinois hit the nail on the head.He said to check for a ground problem or circuit problem in the rear tail light assemblies or wiring circuits.I found 3 cut wires in the wiring harness loom that feeds the taillight ... |
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| 1998 GMC K1500 Sierra SLE 5.7L unknown VIN: 2GTEK19R6W Removed distributor cap and found the rotor came off it's mounting screws and the contact to the center electrode burnt out. Installation of the new rotor I discovered that the old rotor turned when it came off it's mounting screws altering the firing order.So... |
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