P0641 Chevy Tahoe LT 5.3
September 13th, 2015, 2:22 PM
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P0641 Chevy Tahoe LT 5.3
I placed my truck in park and the engine light came on & it wouldn't move. Got a message stating "engine power reduced". I waited 5mins then I was able to drive it. Took to Auto Zone and had a scanner placed on it and got code P0641.
Had the same problem 3 weeks ago & I replaced the Throttle Body, Engine Oil Sensor & Accelerator Pedal Position Sensor. Now I'm having the same problem "AGAIN".....PLEASE help!!
Had the same problem 3 weeks ago & I replaced the Throttle Body, Engine Oil Sensor & Accelerator Pedal Position Sensor. Now I'm having the same problem "AGAIN".....PLEASE help!!
November 6th, 2015, 12:09 PM
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It is the ECM, covered by Federal Emissions Warranty of "8 year / 80,000 mile", so if your vehicle is less than 8 year old and under 80,000 miles take it to a GM Dealership and tell them about the problem and mention the warranty. Cost for replacement ECM AND any diagnostic work is covered, cost is ZERO to you.
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