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How does a burnt exhaust valve affect emissions?

In: Emissions and Exhaust Systems [Edit categories]

Answer:

Answer

You would get high CO's (unburnt fuel) @ idle and @ high speed, Depending on how bad and how many vales are leaking. It would fail most smog tests. You could do a compression test to see whitch cylinder is low.

Hope this helps, Ben Parker, San Jose, Ca.

First answer by ID1174448160. Last edit by ID1174448160. Question popularity: 50 [recommend question].

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