My 2003 chevrolet suburban will not accelerate past 40

Asked by Oct 30, 2015 at 02:37 AM about the 2003 Chevrolet Suburban 1500 4WD

Question type: Maintenance & Repair

4 Answers

685

throttle position sensor or throttle body is dirty or damaged.

43,025

Other causes may be fuel pressure or a plugged catalytic converter.

1 out of 1 people think this is helpful.
35,175

As Rowefast said plugged converter..... or plugged fuel filter, collapsed exhaust pipe, plugged or restricted muffler or weak fuel pump are all possible causes.

20,455

My money's on the Cat- all in!

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