blinkimgone04 Posted January 3, 2009 Report Posted January 3, 2009 Before i take my truck to a chevy dealer and pay for any diagnostic and or repairs i would like to see if anybody has seen this before... the diagnostic tool Auto Zone uses pulled up a malfunctioning TPS... My check engine will randomly come on - and go off... The first time it did this (was fixed under warranty because of the speedomoter re-call) but even after that was fixed the intermittent (sp?) light still occurs... Sometimes when i start my truck the check engine light will come on, and it sounds like my truck is having a hard time getting to idle - it chugs - kind of like a manual car that is LUGGING and sounds like its about to die... i will get a code under my speedo saying "REDUCED ENGINE POWER" - at this point if i put my truck in drive it won't let me go faster, no matter how much throttle, than idle RPM. (No matter how much throttle i give it, it will only go as fast as if you were in drive normally WITHOUT throttle) - this has also happened to me when i have been driving normally around 40-45 MPH going up hill and my truck will SHUT DOWN TO IDLE and say :REDUCED ENGINE POWER: and will not drive. what's funny about this incident is it happened the exact moment i turned on my headlights (HID 10K)....... i'm at a loss - and honestly with my inexperience - i think it has something to do with all of the electrical things i have on my truck (DVD NAV 6'' SCREEN, HEATED SEATS, 10K HEADLIGHTS) idk?? i need a pro's help!!! Quote
wody Posted January 3, 2009 Report Posted January 3, 2009 (edited) any mods? also, do you have the exact code number? Edited January 3, 2009 by WODY™ (see edit history) Quote
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