I have a similar experience. I had 2004 GMC Yukon that I ran for 450k miles... and 3 transmissions. The problem was resolved when I stopped using GM parts, and replacement transmissions. I live in SoCal and took it to Leon’s transmissions. These guys are fantastic by the way. They know their...
wiring short
I am currently dealing with the same problem... lose of power while driving. It's been isolatated to the wiring harness connector to the throttle actuator control module under the hood against the firewall near the drivers side fender brace. Can you believe it, $1,000.00 later at...
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