2007 gmc sierra 1500
Asked by Cfrye77 Nov 26, 2018 at 09:30 PM about the 2007 GMC Sierra 1500 SLE1 Ext. Cab 4WD
Question type: Maintenance & Repair
Drove my 2007 gmc sierra to work this morning ran
just fine come to the lot after work it starts and
idols just fine push the gas pedal and absolutely no
power on my dash screen it says engine reduced
power what could this be
4 Answers
Is the ABS light on as well?
Not a mechanic per sae here but pretty similar issues on my end now. Several things to start researching as a possible ID of problem and fix.... TPS sensor cover (about $55) where it plugs into the side of the throttle body...loose connections or cracked cover sometimes. Electronic gas pedal is faulty. Two bolts. Fairly easy swap at about $100. Maybe the oil sending unit if you've been having low oil pressure. I'm sure you've probably already tried cleaning the Mass Air Sensor and electronic throttle body (not with carb & choke cleaner but with electrical throttle body spray). I changed my gas pedal out then it wouldn't even crank. I changed the TPS cover with six PAINSTAKING retainer clips and again nothing. Took the air intake assembly off and it cranked up and ran with the gas pedal producing power. Oil pressure readings remain critically low. I think it had went into the "Limp Mode" setting before it quit altogether. I am going crazy and burning my pocket book up buying probably unnecessary parts. These are some things you might try though. Best of luck bro.
I think I am screwed man. I just found this video and thought I would pass it along to ya. Unfortunately, I clean my throttle body all the time and have done everything THIS guy said most definitely NOT to do EVER. He pegged all my issues dead on. Financially I am up the creek to fix mine back normal. SIGH... Here is his YouTube post: https://youtu.be/7oIBGlJbZEc
