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WHY DOES MY ENGINE REV UP AND DOWN ON A MANUAL ...
1987 Acura Legend
Why does my engine rev up and down on a manual transmission on a 87 Acura legend
Thursday, October 25th, 2012 AT 3:32 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.
Thursday, October 25th, 2012 AT 3:50 PM
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