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Rattle at high RPMs

Tiny
AC21412000
  • MEMBER
  • 2001 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
I just noticed a grinding/rattling noise in the engine or transmission. This only happens when Im going up hillls and press on the accelerator raising the RPMs. Any other time things sound normal.
Tuesday, September 29th, 2009 AT 10:01 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,794 POSTS
Try this. Take a rubber mallet and tap on the exhaust system. See if you can duplicate the sound. Chances are the noise is coming from a loose heat shield or the inside of the catalytic converter has come apart and you are hearing that. If it is internal in the converter, replace it.

This guide can help

https://www.2carpros.com/articles/rattle-noise

Let me know what you find.
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Wednesday, October 28th, 2009 AT 10:47 AM

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