engine continues to idle high for a few moments then idles low for a few moments. but runs good on open highway.
Aug 20, 2016 at 9:07 AM
intermittent idle
1986 MERCEDES BENZ 420SEL
STEVE SHERIFF
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Hello,
It sounds like you have a vacuum leak, here is a guide that should help you
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Pleas let me know what you find out so we can continue.
It sounds like you have a vacuum leak, here is a guide that should help you
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Pleas let me know what you find out so we can continue.
Aug 30, 2016 at 9:22 AM