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reduced engine power

  1. 04 envoy 4.2l Reduced Engine Power

    02-09 Vortec 4.2L I-6 Engine and Drivetrain
    I have a 2004 GMC Envoy I purchased not too long ago. Recently, as in 3 or 4 days ago, the REP light has been coming on very often. Has only come on once before and had not been back on since. Until now. Now as soon as I take off it only takes a couple minutes to come on. I made it to the auto...
  2. Code P2138 Gas pedal works till car is put in gear

    Introductions
    Hi, I have a 2004 Envoy 4.2L. Starts right up, revs up no problem, soon as its put in gear, the SES and Reduced Engine Power light comes on and car does not rev anymore. I have seen threads on the Reduced Engine Power, but trying to pinpoint exactly if possible. Didn't read anything if the car...
  3. Complete coolant leak and other issues

    OEM Issues
    TL;DR: All of my coolant leaked rapidly from the system. Refilled with water to test, none leaked out after driving ~5 miles to a safer parking lot. ------ Story: I bought my 2004 Trailblazer LS (4.2L I6) about a month ago. It has 83k miles on it, but I've had some problems ever since. It...
  4. Engine Light and Reduced Engine Power after tune up

    OEM Issues
    hello all new to the forums today! i need your guys help today i changed my air filter, fuel filter oil, filter, spark plugs. and cleaned my throttle body i took it off and moved the plate a lot i held it open with my finger and cleaned all inside now i know that that is bad. i buttoned the car...
  5. 2003 Envoy - CHK ENGINE\REP Issue....

    Engine Tunes/Mods
    Vehicle: 2003 Envoy XL SLE 4.2L I-6 Mileage: 92,000 Hi everyone - I am desperately looking for help on the rather serious REP issue. Yesterday, for example, REP manifested itself no fewer than 45 times while my girlfriend was driving it. Today, I took the vehicle for my usual 34 mile commute...
  6. HELP!! 02 trailblazer reduced engine power

    OEM Issues
    I have been reading your alls post for the last year and finally joined tv I love this site you all are very informative and I hope one day I can really help you all out as much as you have me I have a 2002 Chevy trailblazer Ltz this is my second one I love tb I bought this one with problems...
  7. Frustrated - Reduced engine power

    OEM Issues
    I have seen a lot of post about my problem but not sure how to pin point problem. I get the reduced engine power light. The engine seems to only go into reduced engine power when the gas is feathered. If I floor it and let off complety the light/engine runs normally, if I am use my cruse...
  8. app sensor/tbs/5v diagnostic help

    General
    2003 envoy 4.2L....replaced fan clutch/wiring harness. APP assembly. getting code P1217 5v reference. purchased a A/C delco thottle position sensor plug/pigtail. . any guidance on where to start or how to check for the voltage mismatch with a VOM? dont want to replace the entire throttle body...
  9. MY WATER Broke!! Replaced water pump now have SES and Reduced Power

    OEM Issues
    OK what started off to be a somewhat of a normal problem now has transformed into yet another problem. Murphy's Law comes knocking yet again at my house!!:hopeless A while back I noticed a somewhat fast coolant leak:worried:. All systems still running "belt was moving with fan". Then on the way...
  10. reduced engine power, check engine code p1271

    General
    Hey guys, I have been having problems with the reduced engine light coming on and I finally took it to Autozone to get it check. The code it read was p1217 They told me it was the accelerator sensor. Would that be the problem? I remember awhile back I was pressing the gas and my foot slipped...
  11. Please Help With CODES!!!!

    General
    2002 Trailblazer P0014 P1515 P1516 P0132 P1120 P1220 P1221 replaced camshaft sensor,TPS, throttle body reduced engine power light comes on
  12. SES and REP lights during heavy rain

    General
    Just got my very own 2002 Trailblazer a few weeks ago. I took it out camping for the first time last weekend, driving on plenty of dirt roads and using the recently repaired 4x4. On the way home from the trip, I was driving down a canyon and ran into a mean thunderstorm with really heavy rain...
  13. REP, SES, Stabilitrack lights coming on

    OEM Issues
    About 4 months ago my 06 TB StabiliTrak Indicator Light, check engine light, reduced engine power light started coming on at the same time. With this my TB power is reduced by about 1/2. I cannot figure out why this is happening. If I turn off the TB and remove and replace the gas cap...
  14. trailblazer reduced engine power

    General
    I have a 2004 Chevy Trailblazer w/ 150XXX miles. its been acting crazy it drives fine when the weather is cold. no problems. when the weather is over 65 degrees is when it seems the problem starts. I had about 10 codes and they all had to deal with the (TPS) in different readings I purchased...
  15. Accelerator Pedal Position, Reduced Engine Power

    General
    I recently purchased a 2003 Trailblazer 6 cyl 4.2 with 45000 miles on it. With in the first week, the reduced engine power came on and check engine light. I took it to Autozone, and the OBD displayed two codes for Accelerator Pedal Position Sensor. They didn't have one in stock so I ordered one...
  16. REP Light

    OEM Issues
    Hello, I am new to the site and I had a problem yesterday. I have a 04 Trailblazer with 97,000 miles. LS 4X4 with no modifications. I was at a stop light and the light turned green I pressed the accelerator pedal the engine coughed a little and the REP light came on. I was able to make it...
  17. My only car, my TB is letting me down.

    OEM Issues
    About a month ago, my TB had a dead battery, so I got it recharged. It then happened 2 more times. Finally, I bought a new battery. Don't know if it relates but, after that, I started getting the dreaded Reduced Engine Power Light along with the SES. Took it to Autozone and got code p1271 along...
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