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4968 messages, Last post on Dec 06, 2009 at 4:49 PM
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3/4 ton chev silverado,2006, auto,4X4, extended cab, V8 , 180,000 km Problem-loss of power, dash wardnng-"engine power reduced"- problem??? |
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Replying to: grampa2 (Aug 20, 2009 11:09 am) I had a similar problem a couple of years ago with a Ford I had. That problem was a bad sensor on the gas pedal. It's drive by wire and the potentiometer was out of tolerance. When I read it up on the Ford, it indicated that they put the vehicle into reduced power mode so you're able to limp home. I have no idea without researching whether Chev does the same. But getting the computer read should get you zero'd right in on the problem area.
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Replying to: grampa2 (Aug 20, 2009 11:09 am) Date: November 06, 2008 Condition Some customers may comment on an intermittent MIL/SES light Illuminated with a message center or an indicator that displays Reduced Engine Power. DTC P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation may be set. The voltage difference between APP sensor 1 and APP sensor 2 exceeds a predetermined value for more than a brief period. Refer to DTC P2138 in SI for further diagnostics. Cause On some vehicles, the IP to body harness connector, which carries the APP signal to the ECM/PCM, is located in the left hand kick panel area or inside the IP. Water intrusion into these areas could cause an electrical short in the APP circuits setting a P2138 code. Correction Note: Make sure that no add-on/aftermarket equipment is electrically connected to the APP signals or to the other ECM/PCM five volt reference or return lines. These can generate false P2138 and/or other ETC System DTCs. If there are other engine DTCs besides P2138, such as MAP sensor faults (i.e. P0107, P0108), resolve these first before attempting to diagnose P2138 DTCs. Important: Refer to DTC P2138 in SI to confirm that the ETC pedal is operating correctly. Locate the IP to body harness connector, which may be located in and around the left hand kick panel area or inside the IP. Check to see if there is a water leak into the area and repair as necessary. Use a water hose to determine the source of a water leak and effectiveness of repair. Some examples of potential water leaks are: A-pillar seals, sunroof drain lines (if so equipped) and windshield/cowl sealing. Finally, repair or replace the IP to body harness connector, making sure no corrosion or debris is left on or between the terminals.
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Replying to: Mr_Shiftright (Aug 20, 2009 12:46 pm) |
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Replying to: kiawah (Aug 20, 2009 11:21 am) |
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Replying to: marsha7 (Aug 20, 2009 8:51 am) |
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I was rear-ended on the left-hand side of my 2001 Honda Accord. Now the car pulls right. The car has been repaired but now pulls right. Any ideas why?
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Replying to: ls78 (Aug 29, 2009 11:41 am) An off center hit on the vehicle, may have pushed in the left rear wheel toward the front. If the repair shop didn't pull the left rear back to the correct position before fixing the sheetmetal, you may have a hard time getting it into alignment now. Take it back to the repair shop.
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Replying to: kiawah (Aug 29, 2009 11:46 am) |
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i have a saturn 2000 v6 300 with transaxel. wont go forward or reverse. Im getting a code for the B solenoid stuck open and park neutral sw 1780. also 502 speed sensor. do i have to replace the b solenoid? can i do it from under the battery box? what do you thnk? thanks..... |
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