truck stalls when stoped

1979 FORD F-250
V8 • 4WD • AUTOMATIC
Avatar
JOECOOLMAN16
  • MEMBER
  • 1 POST
I have a 1979 f250 with a 460 and when ever I go to stop when the motor is worm it stalls out
Aug 13, 2011 at 10:05 PM
Advertisement
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
Aug 13, 2011 at 10:54 PM
Avatar
CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,309 POSTS
IAC? I don't think we knew that term in '79.
Aug 14, 2011 at 1:26 AM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
LOL, You got me Doc. Wasn't paying attention. Most likely a carb issue. Could be leaking vacuum or flooding.
Aug 14, 2011 at 1:29 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.