F250 won't start after warmed up

[ru469]

1990 F250 4x4 with 460, starts up fine, but after it has warmed up, it won't start anymore, if it hasn't warmed up , i can start it and turn it off and start it over and over again with no problem, thanks for any help

[Robin Hood]

My F-150 had this problem. I found the coil was bad.

[Kitt]

Just wanted to let you know that I too am looking for a fix for this..quite irritating when I have impatient horses in the trailer at the gas station and it won't start till it is 'cool' enough! My motivation that had me look for and join this interesting forum.

[ihatemyford]

Originally Posted by ru469

1990 F250 4x4 with 460, starts up fine, but after it has warmed up, it won't start anymore, if it hasn't warmed up , i can start it and turn it off and start it over and over again with no problem, thanks for any help

i have the same issue i have replaced the ignition module, the and the coil. but i still can't find the problem.. you arnt the only one!

[pooze]

I've read all over the net this is because of a bad CTS (coolant temperature sensor). Careful though there's two of them, one that is used for your gauges and one that the computer uses. The one for the gauges has a single wire on it, the other one has multiple I believe. Not sure where they are on a 460, but facing the motor looking in the engine compartment on a 302 the CTS is on the passenger side. Make sure you teflon tape the threads on the new one when you put it in so it doesn't leak.

[david25]

my F250 shuts off while going down the road I have done a complet tune up, replaced compuer, and coil. Still have same situation, PLEASE HELP...

[chargerpaul]

To ru69....Sounds like a "heat soak" condition to me--when your truck is cool and you start it, the starter spins ok but when the truck is hot, the heat transfers in to the starter and swells the armature just enough to bind it up and the starter won't turn. Solution is to fabricate and install a heat shield over the starter between it and the block and exhaust system or wrap the starter in "header tape" which is a heat resistant tape used on headers...can be bought at most parts stores or performance shops. Quick fix is to pour cool water on the starter housing but not too much...use a funnel and hose to get past any restrictions. Good luck, Paul

[2.2 Straight six]

Old thread.

if it's more than 3 months old, it's dead and shoudn't be brought back.

i'm not here to be a pain in the ass, it's just the rules. PM me if you feel the need to.