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1994 Mercury Cougar hard start when cold or wet

Tiny
KARL59
  • MEMBER
  • 1994 MERCURY COUGAR
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Had egr and map sensors replaced due to check engine light also new battery. Car runs alittle rough but in mornings hard to start and when started and when you go to restart after it warms up no problems
Thursday, December 4th, 2008 AT 8:56 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Hi, check the fuel pressure regulator, also check the ECM engine temp sensor, its sound like it could be bad.
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Saturday, December 6th, 2008 AT 12:22 AM
Tiny
KARL59
  • MEMBER
  • 4 POSTS
Would either if those things make the check engine light go on
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Saturday, December 6th, 2008 AT 4:00 AM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Yes, both would throw the engine light. If your engine light is on then you should run a diagnostic scan and get the codes. This will make it much easier to diagnose the situation. Most auto part stores such as AutoZone or Advance Auto Parts will run a test for free if you do not have a scanner.
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Saturday, December 6th, 2008 AT 4:11 AM
Tiny
KARL59
  • MEMBER
  • 4 POSTS
I ran the codes and the light is now off but still have hard time starting when it rains or snows out
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Sunday, December 7th, 2008 AT 4:05 AM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
What code numbers appeared?
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Sunday, December 7th, 2008 AT 4:08 AM
Tiny
KARL59
  • MEMBER
  • 4 POSTS
I had the codes before but they were for the low voltage on egr valve sensor and maf sensor
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Monday, December 8th, 2008 AT 6:29 AM

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