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Cougar stalls when cold, Ok in a few miles

Tiny
REDSHIRTON
  • MEMBER
  • MERCURY COUGAR
I have a 1994 Merc cougar automatic with fuel inj 3.8 V6. It has 120,000 miles on it. When cold, it stalls as soon as I put it in gear. After a few miles, it is fine. I put a can of "sea foam " in the gas. That helped a little for about a day. Would cleaning/replacing the fuel injectors fix this? A friend of mine suggested cleaning/replacing the Idle air control valve. Could that fix it? Thanks!
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Friday, October 12th, 2007 AT 2:43 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
No, replace you ECT, electronic coolant temp sensor!
This is the culprit when it's a cold idle problem!
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Friday, October 12th, 2007 AT 3:20 PM

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