Why does my truck turn off at every stop?
Asked by Lupz Jul 07, 2015 at 04:57 PM about the 2003 Ford F-150
Question type: Maintenance & Repair
Hello... so my truck started dying on
me. If I have to wait at a red light, it
shakes and turns off. There's no
problem turning it back on, and stays
on as long as I'm moving - but the
minute I stop, it'll turn back off.
I already cleaned the air filter with
K&N, reinstalled it, and tested it.
Although now it won't turn off, it still
shakes and acts like its going to turn
off. Any suggestions of what else I
can check would be greatly
appreciated!
I'm at the 135,000 mark. It's a 4.6L
engine. 2003 Ford F150 Super Crew.
Thanks!
13 Answers
Yes, spark plugs changed a year ago. I'll check the other stuff... Thanks!
Throttle body and IAC probably filthy. Tom gave the correct advice as to cleaning. DO NOT use carb cleaner, They make cleaner for throttle bodies which will not damage the coating on the parts.
Did u ever get the find what was wrong with ur truck. Im having same issue
Yes I did! All my mechanic did was adjust the accelerator pump! Easy fix.
So adjust acceleration pump so did that fix it cause I put throttle control sensor and a egr valve it still switching off please help someone
CACHORRO1992 answered 5 years ago
I have a 1992 f150 5.0L and it does the same help?
See if there's a air leak vacuum hose intake tube for the air filter
I have a 2010 F150 keep stopping at the red lights this starts right up don't know what can be wrong can anybody help I put a new Throttle position sensor Keep still in the same thing And new spark plugs
Guru9D5MWT answered 4 years ago
My 2003 F-150 5.4 was doing the same thing, found line on top of pvc had a hole and had hitting soft and sucked shut
Guru9D5MWT answered 4 years ago
I hate spell check- had gotten soft and sucked shut!
Guru9D5MWT answered 4 years ago
If the pvc line is ok then replace the pvc
