cold start - F150online Forums

cold start

  #1  
Old 11-06-2018, 12:06 PM
Junior Member
Thread Starter
Join Date: Nov 2018
Posts: 1
cold start

2001 f150 4.6 v8 cold below 40 degrees starts then dies I have to warm up in order for it to keep running once temp is up runs fine
 
  #2  
Old 11-06-2018, 01:33 PM
glc's Avatar
glc
glc is offline
Senior Member
Join Date: Dec 2006
Location: Joplin MO
Posts: 37,542
Clean or replace your IAC valve.
 
  #3  
Old 11-06-2018, 05:52 PM
Technical Article Contributor
Join Date: Jan 2007
Location: Vernon, NY
Posts: 8,080
Also check to make sure the connector is plugged in firmly too.
 
  #4  
Old 11-06-2018, 08:11 PM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 6,487
Originally Posted by glc View Post
Clean or replace your IAC valve.
Yep. The IAC valves tend to get "morning sickness" when the weather turns cooler. They build up gumminess over the summer and that stuff thickens when it gets cool enough causing the valve to stick.

Cleaning is usually a temporary measure, the problem usually returns before too long as you can't really clan all the crud out.
 


Thread Tools
Search this Thread
Quick Reply: cold start


Sponsors

Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: