engine noise

TOYOTA COROLLA
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ACK
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I have an 03 Corolla. When I accelerate, I hear this rattling noise. I think this noise is attributing to my loss of miles per gallon as well. does anyone know what might be causing this noise? please help!!
Apr 8, 2007 at 5:14 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
[quote:fed467f067="ack"]I have an 03 Corolla. When I accelerate, I hear this rattling noise. I think this noise is attributing to my loss of miles per gallon as well. does anyone know what might be causing this noise? please help!![/quote:fed467f067]

Maybe spark knock/detonation-try changing to higher octane fuel and see what happens
Apr 8, 2007 at 11:08 PM
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