Could a leaking power brake booster cause the engine to run lean and burn valves

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Engine suddenly - after decelerating unto an expressway ramp - started missing on number 1 and there is "valve noise" and no compression on number 1. 150k miles.

drkronmiller in Oceanside CA

·

Feb 13, 2012

·

1 Reply

Popular Answer
PLCAutoPartson Feb 13, 2012

Yes a vaccum will make the car run lean, possibly code P0174, in the long run could damage a valve,.

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