High RPM
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High RPM
2007 Suburban 5.3 flex fuel
Replaced throttle body (included new TPS), at a stop or in park, engine idles at 600ish.
While moving, if put in "N", rpms will rise to 3000.
Noticeable reduction in fuel mileage.
Sprayed intake ducting with starting fluid. No noticeable rise in RPM.
Replaced throttle body (included new TPS), at a stop or in park, engine idles at 600ish.
While moving, if put in "N", rpms will rise to 3000.
Noticeable reduction in fuel mileage.
Sprayed intake ducting with starting fluid. No noticeable rise in RPM.
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Joined: Apr 2008
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give this thread a read https://chevroletforum.com/forum/tah...-gmt900-54328/
give this thread a read https://chevroletforum.com/forum/tah...-gmt900-54328/