My 2003 chevrolet suburban will not accelerate past 40

Asked by Love No Oct 30, 2015 at 02:37 AM about the 2003 Chevrolet Suburban 1500 4WD

Question type: Maintenance & Repair

4 Answers

1,925

throttle position sensor or throttle body is dirty or damaged.

2 people found this helpful.
221,205

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

1 people found this helpful.
157,535

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

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