RPM's Drop after Start, Engine turns off

[Kurt Hertel]

Ok so now that the weather is getting colder, my trac doesnt like to idle right away after starting. When it first started the truck would turn on and then after a second or 2 the RPM's would drop down dramatically but not turn off... But yesterday and today after i cranked it up, it will turn over but then RPM's drop down to the point that the engine turns off... Now if i punch the throttle a little and keep the RPM's high enough for a while, then im good to go no problems at all.... Does anybody have an idea on what the problem is and how to fix it?

 

[David Ponder]

I suspect the IAC Valve. Check projects section for cleaning procedures. (Not hard to do)



Edit. added link..

 

[Mike Dziubina]

happens every year around this time...just as dave said..IAC and the elbow

 

[Todd Z]

I also would not PUNCH the throttle on a cold engine...



Todd Z

 

[Kurt Hertel]

Well duuhhh, im not dumb... just gota keep it up so that it doesnt stall out and quit