1993 Mercury Tracer engine sensor problems

1993 MERCURY TRACER
62,000 MILES • 4 CYL • FWD • AUTOMATIC
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REDDHOTT00244
  • MEMBER
  • 2 POSTS
my car starts and drives normal but after car cycles through heatup to running temp and you park it the car refuses to start untill the engine is completely cool the cooling fan is stuck on i already replaced the fan relay and sensor and did a tune up please help im running outta things to think of lol
Mar 29, 2008 at 10:53 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
you park it the car refuses to start

When it does this-immediately look for fuel and spark one of this is gonna be missing and comeback and tell us.
Mar 29, 2008 at 11:03 AM
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REDDHOTT00244
  • MEMBER
  • 2 POSTS
well unfortunately its missing neither plenty of fuel at the rail and spark is present also
Mar 29, 2008 at 2:27 PM
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SERVICE WRITER
  • ✓Experienced Mechanic
  • 9,123 POSTS
sounds like the coolant temperature sensor is saying it is too hot and the pcm is adding too much fuel cuasing the no start. Pcm thinks it's too hot so it tells the fan to stay on. Eventually the temp sensor makes a change back to normal when all is ambient would be my thought.
Mar 29, 2008 at 4:27 PM
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