2003 Ford Ranger 4.0L noise in intake manifold

  • 2003 FORD RANGER
  • 6 CYL
  • 2WD
  • 190,000 MILES

I have a 2003 Ford Ranger 4.0L with 190k miles, the motor has always been very quiet. Upon startup the other day I had a screeching sqeal, which stopped after a few seconds. I was left with a flapping, clicking, almost exhaust leak sounding, sound in the upper starboard side of the intake manifold. The sound will go away for a instant when the throttle is opened, then comes back. The motor now pings at steady highway speeds. Power seams to be lower. I have checked all vacuum hoses, replaced the PCV valve & hose. The truck just had a tune within 5000 miles.

Do you
have the same problem?
Sunday, February 20th, 2011 AT 4:58 PM

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