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Ask GM Tech (Cam) Your Own Question

GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 27661
Experience:  GM Grand Master Technician 2007. 11 years experience.
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07 yukon service stabilitrak, reduced engine power

Customer Question

07 yukon service stabilitrak, reduced engine power
Submitted: 4 years ago.
Category: GM
Expert:  Joel replied 4 years ago.

Hello and welcome.

The reduced engine power is usually caused by a check engine light. When the Powertrain computer sees a problem in a sensor or the emissions system, it turns on the check engine light and stores a code. This could be for many reasons. The computer systems would need to be scanned for codes.

 

There are many engine codes that will also send truck into reduced power mode.

 

When in reduced power mode, or certain check engine light codes, the stability system will also be disabled, and turn that warning on.

 

Again, a scan of the codes would be needed.

Being an 07, this truck would still be under warranty.

 

 

Customer: replied 4 years ago.
5y
Expert:  GM Tech (Cam) replied 4 years ago.

Welcome. I must agree with Joel. The Stabilitrak is disabled due to a fault in the engine. Given how incredibly advanced this system is, we will need the code from the engine computer causing the reduced engine power to start diagnosis. Can you get it scanned? Most part stores scan for free.

Customer: replied 4 years ago.
The vehicle is out of warranty 75,000 miles. Also it started where I turned it over and it was like it wasnt getting fuel. Not hitting at all. second turn it fires right up but idles rough. It does this everytime unless i turn it off and turn it right back on. It just recently started the stabilitrack reduced power. Could you give me some possibilities?
Expert:  GM Tech (Cam) replied 4 years ago.
It sounds like a fuel pump issue based on the fact it takes a second try to start.

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