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1994 Ford Cougar spark plug replacement

Tiny
MIKE4444
  • MEMBER
  • 1994 MERCURY COUGAR
  • 90,500 MILES
Car seems to surge, hesitate, and shake while trying to accelerate. I was told that number 5 spark plug is bad and that one of the oxygen sensors could possibly be bad as well. Any suggestions would be appreciated.

Thanks : 1994 Ford Cougar Fan.
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Tuesday, September 6th, 2011 AT 9:42 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Try replacing the plug to see if that helps. Also, make sure it is getting spark to it. If it is and the check engine light is on, have the computer scanned to identify trouble codes. As far as the O2 sensor, it should set a check engine light.
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Tuesday, September 6th, 2011 AT 11:10 PM

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