Question about 1993 Ford Crown Victoria

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My 1993 crown vic has trouble idleing properly when first started in the morning, either in the winter or the summer. Also if i try to take off real quick after the first start it laggs and runs really rough. What could the problem be?

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  • Master
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You may want to check the Vacuum lines if there are leaks. Check also Fast Idle Thermo Valve, which controls the idling at cold starts. If you have a carb, check the idle up valve.

Posted on Jun 03, 2009

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  • Ford Master
  • 4,369 Answers

It's running lean. Could be the cold enrichment circuit. Maybe the enigine coolant temperature sensor is bad. dealer can run engine computer test for fault codes. Should be 1/2 hour to 1 hour charge to get codes. call around.

Posted on Jun 03, 2009

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