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1999 Mercury Tracer Engine Problem

Tiny
VAULT_DWELLER_13
  • MEMBER
  • 1999 MERCURY TRACER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
When I start the engine and rev it up a bit the car runs but once I take my foot off the gas pedal, the car dies. I have no experience with this sort of thing so does anyone know what might be wrong?
Monday, January 5th, 2015 AT 9:22 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
First eliminate all vacuum or air leaks in the system. You may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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Tuesday, January 6th, 2015 AT 2:13 AM

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