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Rough idle at cold start

Tiny
SCOTTPER58
  • MEMBER
  • 2001 FORD CROWN VICTORIA
  • V8
  • 2WD
  • AUTOMATIC
2001 crown vic On my first startup of the day have low idle(bat light low volt) once the car warms up all symptoms disappear is this a ect sensor problem
Tuesday, June 21st, 2011 AT 7:51 PM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the charging system and also the ECT sensor
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Tuesday, June 21st, 2011 AT 8:06 PM
Tiny
SCOTTPER58
  • MEMBER
  • 5 POSTS
Alternator is charging at14v. Just checked resistance on etc and is very low. 1.7kohms
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Tuesday, June 21st, 2011 AT 10:00 PM
Tiny
WAY2OLD
  • MECHANIC
  • 195 POSTS
Check the Idle Air Control motor. If it is dirty or plugged, it will give a low and rough idle condition until it warms up.
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Tuesday, June 21st, 2011 AT 11:07 PM
Tiny
SCOTTPER58
  • MEMBER
  • 5 POSTS
Thanks, I replaced the idle air control valve
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Tuesday, June 21st, 2011 AT 11:33 PM
Tiny
SCOTTPER58
  • MEMBER
  • 5 POSTS
Wher is the ect sensor on 2001 crown vic, wha I think is the ect has a 2 blade connecter and is coated with plumbers putty
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Tuesday, June 21st, 2011 AT 11:36 PM

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