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High RPS while engine is cold

Car: Acura, Legend, 1989     -    Back to Fix-It    -    Acura Legend Repair Manuals

Q.i have a 89 acura legend coupe 2.7 ltr--at start-up when the motor is cold, immediately the rpm's go up to 2500 and stays there about 5 minutes. if i put the car in gear before the rpm's come down, i'm afraid i'll bust something!

Answer -Could you explain your situation a little more?
has the check engine light come on ?
has the cooling system been checked lately

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