1994 Mercury Cougar tachometer

1994 MERCURY COUGAR
97,000 MILES • V8 • 2WD • AUTOMATIC
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JOAN56114
  • MEMBER
  • 1 POST
tachometer quits when under acceleration resumes when you let up on the throttle also if you rev up the engine it stops if you raise it slowly it will keep reading thank you
Feb 28, 2008 at 6:08 PM
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LEGITIMATE007
  • ✓ASE Certified Mechanic
  • 5,121 POSTS
  • ASE Certified Mechanic
sounds like your TPS:Throttle Position Sensor is sending false signals. have it tested for faultiness and get back to me with findings
Feb 28, 2008 at 11:01 PM
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