WHAT WOULD CAUSE THE THROTTLE BODY TO GO BAD?

2006 Chevrolet Equinox

Tiny

Anonymous

November, 13, 2012 AT 8:43 PM

What would cause the throttle body to go bad?

1 Answer

Tiny

caradiodoc

November, 13, 2012 AT 9:01 PM

Do you have the dangerous "throttle-by-wire" system that put Toyota in the news? That system replaces the common sense throttle cable with two throttle position sensors, a computer, a motor-drive throttle plate, and lots of electrical wire and connectors. Anytime you add an unreliable computer to a formerly trouble-free system, you add complexity and problems. Most of the throttle bodies are not serviceable because any hands that get into it will be a potential party to the future lawsuits. Those units are replaced, not fixed.

If you still have the trouble-free older throttle body, all that can go wrong with them is a small passage becomes blocked with carbon affecting the idle speed of the engine, or the throttle shaft's bushings wear and create a vacuum leak. Neither of those problems is dangerous, common, or expensive to repair. Makes you wonder why they stopped using them.

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