1997 Acura Integra Integra 97 acceleration noises

1997 ACURA INTEGRA
135,000 MILES • 4 CYL • FWD • MANUAL
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KAWESOME
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when i start the car on a cold start, the engine is fine , car is completely stock no aftermarket parts.

when even accelerate, and release the gas pedal after accerlerate , i heard a clang clang , metal rattling noise, i don't know is it from the engine.
clanging metal rattle noise only comes after i release the gas petal. when the car is idle, i press on the gas and then release, still hear the metal rattle noise.

no engine check lights on, but i see the maintance light on.

please help.
Mar 19, 2008 at 7:37 AM
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BRUCE HUNT
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This could be back pressure related and coming from the exhaust. It can be internal to the exhaust system, ie a bad or loose baffle. It can be from a heat shield vibrating as well. Put the car on ramps and after exercising safety precautions, crawl under the vehicle with it running and have a partner repeat the steps to make the noise appear. Narrow down the source.
Mar 21, 2008 at 12:30 PM