SPONSORED LINKS

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.
SPONSORED LINKS
Wednesday, October 10th, 2007 AT 9:36 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the coolant temperaure and oxygen sensors check and also the idle speed contol motor/IACV

Or get the OBD2 scanned for code/s
Was this
answer
helpful?
Yes
No
Thursday, October 11th, 2007 AT 6:18 AM
Tiny
SCOTTRHEADRICK
  • MEMBER
  • 2 POSTS
Where is the coolant temp senosr located?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, October 11th, 2007 AT 12:00 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Should be close by the thermostat housing or on it.
Was this
answer
helpful?
Yes
No
Thursday, October 11th, 2007 AT 1:27 PM

Please login or register to post a reply.

Related Idle Air Control Content

Clean Idle Air Control Ford Super Duty 5.4L
VIDEO
Clean Idle Air Control Ford Super Duty 5.4L
Instructional repair video
Idle Air Control Valve Service
GUIDE
Idle Air Control Valve Service
The idle air control valve is responsible for controlling the engine idle speed via the car's PCM (computer). These valves are configured differently depending on...
VIEW MORE

Sponsored links