Noisey F150

by shadetreetech on Jul 18 2017, 8:49 PM

I have a 2011 F150 with a 5.0. After a highway cruise of about 20 minutes It make a LOUD squeal for about 10 seconds and then stops. I replace the belts and tensioners. It does not change with the A/C on or off.  Thanks for your help!

You must be signed in to reply or vote on this post.
5 Replies
  • By vicioussixx
    You have looked at the a/c clutch I assume?
    Sign in to vote 0
  • By plattengineer

    Check fans

    Sign in to vote 0
  • By victor904
    Possible alternator bearing or ac clutch slippage when engaging 
    Sign in to vote 0
  • By shadetreetech
    It has electric fans only. I have run them with the scan tool and could not duplicate the noise. It almost sound like the air conditioning over pressure valve is blowing off, but the pressures are normal
    Sign in to vote 0
  • By jeffreyd1
    Not sure if they use an electric fan or a fan clutch. On some of the diesels with a fan clutch we have had some squeal concerns when towing that ended up being fan clutch failures.
    Sign in to vote 0

Recent Discussions

Top Contributors

  • Elite Tech
    {{user.displayName}} ({{user.numberOfPosts}})
  • Show More