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1995 Acura Integra GS-R 4dr Sedan Manual

1995 Acura Integra
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December 26, 2010, 12:25 pm

Roberto G

Question: Engine making certain noise when in Park

There are times when the car is in Park that the engine makes what we call in our terminology as "revolution" sounds.

To describe this better, it is the same type of sound you would hear if you kept alternating between putting your foot on the gas pedal and releasing it while in Park mode. So it keeps making these "Vroom... Vroom... Vroom..." sounds except we're not pumping the gas pedal. This seems to happen when the engine has started to get hot.

These sounds stop whenever you shift the car back to Drive.

Any thoughts you could provide on this would be greatly appreciated. Thank you!

December 29, 2010, 4:31 pm

David S

That is usually caused by a vacuum leak in the intake system as the computer tries to compensate the fuel amount. I would look the entire intake over, from the air filter box to the cylinder head, for any signs of an air leak.

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