Rough engine Idle when air temperature drops below 50

Tiny
SCOTTRHEADRICK
  • MEMBER
  • FORD F-150
Ford F150, 1999, 135,000 miles, 5.4L V8 engine

When the air temp is around 50 degrees and below the truck will start and then immediately die. (It won't idle) I can push on the accelerator to keep the truck running, and when the engine warms up is idles fine. This has been going on for over a year now. At first it was intermittent, but this fall it has been everyday now.
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Wednesday, October 10th, 2007 AT 9:36 AM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Have the coolant temperaure and oxygen sensors check and also the idle speed contol motor/IACV

Or get the OBD2 scanned for code/s
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Thursday, October 11th, 2007 AT 6:18 AM
Tiny
SCOTTRHEADRICK
  • MEMBER
Where is the coolant temp senosr located?
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Thursday, October 11th, 2007 AT 12:00 PM
Tiny
RASMATAZ
  • MEMBER
Should be close by the thermostat housing or on it.
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Thursday, October 11th, 2007 AT 1:27 PM

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