WHY DOES MY ENGINE REV UP AND DOWN ON A MANUAL ...

1987 Acura Legend

Tiny

Anonymous

October, 25, 2012 AT 3:32 PM

Why does my engine rev up and down on a manual transmission on a 87 Acura legend

1 Answer

Tiny

KHLow2008

October, 25, 2012 AT 3:50 PM

If the idling speed is too high, idle would surge. Lack of coolant or clogged coolant hoses to the cold start and IAC can cause this too. Vacuum leaks, bad cold start valve are other possibilities.

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