ENGINE VIBRATING REALLY BAD

  • Tiny
  • madsena
  • 2005 Ford F-150
  • 180,000 miles

My 2005 F-150 FX4 is vibrating really bad at 1000 rpm's. Once I get above 1000 rpms it goes away. What could this be and how can I fix this?

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Friday, February 10th, 2012 AT 8:40 PM

3 Replies

  • Tiny
  • fixitmr
  • Member

It sounds like you have a bad intake valve which is allowing gases to contaminate the intake charge to other cylinders.

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Friday, February 10th, 2012 AT 10:11 PM
  • Tiny
  • madsena
  • Member

Good call, I did a compression test that you guys have on your site:

http://www.2carpros.com/articles/how-to-test-engine-compression

and found a low cylinder, you guys are great!

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Friday, February 10th, 2012 AT 10:50 PM
  • Tiny
  • fixitmr
  • Member

We aim to please here at 2carpros. Com!

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Saturday, February 11th, 2012 AT 8:15 AM

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