rough idle at cold start

2001 FORD CROWN VICTORIA
V8 • 2WD • AUTOMATIC
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SCOTTPER58
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  • 5 POSTS
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
Jun 21, 2011 at 7:51 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the charging system and also the ECT sensor
Jun 21, 2011 at 8:06 PM
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SCOTTPER58
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Alternator is charging at14v. Just checked resistance on etc and is very low. 1.7kohms
Jun 21, 2011 at 10:00 PM
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WAY2OLD
  • ✓ASE Certified Mechanic
  • 195 POSTS
  • ASE Certified Mechanic
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.
Jun 21, 2011 at 11:07 PM
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SCOTTPER58
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  • 5 POSTS
Thanks, I replaced the idle air control valve
Jun 21, 2011 at 11:33 PM
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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
Jun 21, 2011 at 11:36 PM
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