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Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 1808
Experience:  ASE Master Certification. GM World Class Certification
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Buick: 2004 buick rendezvous 3400 v/6 ... engine runs fast

Customer Question

2004 buick rendezvous 3400 v/6 ... engine runs fast while driving, only happens once in a while. have replaced fuel pressur valve, engine temp sensor, and also iac. what else could make engine speed up sometimes?
Submitted: 8 months ago.
Category: Buick
Expert:  Roy Belding replied 8 months ago.
good afternoon my name is ***** ***** I will assist the throttle body itself could be the reason. if the throttle plate was carboned up on the edges, it will stick partially open. very common failure. Roy

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