I have a 1988 f-450 flatbed with 460 engine and manual trans. It is hard to start when warm and unless it sits for 1/2 hour it takes a lot of cranking to get it to fire. When it does start it runs fine. It behaves exactly like it has a vapor lock but others have said that is impossible since it is EFI. It seems to me that it is possibly running rich and I have to crank it to clear it out. I replaced the ignition module on the side of the distributor but that did not help. Any ideas?


Randy

 

Leaky injector causing rich starts.

Try holding the pedal to the floor.