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Disturbing sounds from my 1997 Explorer

Tiny
CSVENOM1980
  • MEMBER
  • 1997 FORD EXPLORER
  • V8
  • AWD
  • AUTOMATIC
  • 160,000 MILES
I have a 1997 Ford Explorer with a V8 and All Wheel Drive, under hard accerlation it makes a loud thump or Popping noices, also I have notice a grinding noice when I at a drive thru moving but stops when I stop moving. Love this vehicle please help!
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Thursday, December 30th, 2010 AT 7:49 PM

1 Reply

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Sounds like the cam has gone bad or some component that actuates the valve like the lifter or rocker arm. The cam is usually what goes and it is often refered to as, "wiped".

Unfortunately, this is best remedied by rebuilding the motor as the metal from the cam has shortened the life of the motor. Replacing the cam is a patch.
The next time you change your oil, look for metal in the bottom of the drain pan.
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Saturday, February 12th, 2011 AT 4:51 AM

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