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1993 Ford Ranger valvae rapping

Tiny
JOHNMAREE
  • MEMBER
  • 1993 FORD RANGER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
When I start my truck on a cold start. When my idle drops from high idle to low idle my valves on the right side seem to be making a rapping sound, I also lose power to drive for about 2 to 3 minutes, then my power returns and I have acceleration again. Any input to this would be appreciated.
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Friday, February 26th, 2010 AT 3:18 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Does it sound like valves tapping or a knocking sound?

Let me know.
Joe
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Monday, March 1st, 2010 AT 1:48 PM
Tiny
JOHNMAREE
  • MEMBER
  • 2 POSTS
It sounds like a loud tap, but not quite knocking. Almost if you were to buy bad fuel. Only on a cold start when it comes down from high idle to low idle, and truck has no power when you put it in gear(top speed of like 10mph) for about 1-3 minutes.
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Monday, March 1st, 2010 AT 5:28 PM

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