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2000 Ford F350 Rough Idle and Knocking?

Tiny
HOBBY60
  • MEMBER
  • 2000 FORD F-350
  • V8
  • 4WD
  • MANUAL
  • 193,000 MILES
It was running fine down the high way when the motor just cut out. Now when you crank it it idle rough and has a loud knocking sound. The motor will smooth out around 1500 rpm and higher. I only put 60 miles on my truck from the last time I filled up. I changed the cam sensor about 2 years ago. I was woundering if it could be that sensor going out or if I got bad fuel or if anybody else had this problem and it was something else. Thank you. Any help would be great!

Nathan
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Saturday, August 16th, 2008 AT 7:26 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
A knock inside the motor? Not a good sign, can be a bad wrist in, or connecting rod bearing, crank journal, and it may be affecting the knock sensor, which will retard the timming.
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Saturday, August 16th, 2008 AT 7:34 PM

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