koda2000
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I'm running out of ideas for you. What is your MPG? Does it seem normal? I'm not am expert on the 4.0L OHV, but the 2 other engines normally get around 15 'ish city and 20 'ish hwy.
If it's not getting too much fuel when warm, is it possible it's not getting enough? That doesn't make sense though as cranking it with the gas pedal to the floor when warm is getting it started. Have you tried cycling you key ON/OFF a few times when warm to prime the fuel system?
One problems the OHV engines suffer from is cracked heads. These tend to be very small cracks that occur between the valve seats. These hair-line cracks can be so small that they can even close up one the engine heats up. Perhaps as the engine cools the cracks open up and leak coolant into the combustion chambers? This might cause hard starting, but the cooler the engine gets the worse it would be. Have you recently overheated? Do you find you are mysteriously loosing coolant (even a small amount)?
What kind/brand of spark plugs do you have in the engine? Fords don't like Bosch spark plugs for some reason and most here use Motorcraft or Autolite double platinum plugs, which seem to work the best in these engines.
The cam position sensor is responsible for fuel timing. I've read that the engine should run even with a bad cam sensor, though badly, but I've also recently read that sometimes the will not run at all.
Finally, have you said you've replaced the pre-cat O2 sensors. They effect fuel trims.
I never like throwing parts at a problem w/out a reasonable assurance they will solve the problem (especially expensive parts). I know what starter motor heat-soak is. It effects the speed at which the starter spins. Nothing else. If you find that the starter seems to be spinning at the same speed cold and hot then that's not your issue. If your starter has started making weird noises, it's probably a worn bushing, but as long as the motor still spins normally that's not an urgent issue.
If it's not getting too much fuel when warm, is it possible it's not getting enough? That doesn't make sense though as cranking it with the gas pedal to the floor when warm is getting it started. Have you tried cycling you key ON/OFF a few times when warm to prime the fuel system?
One problems the OHV engines suffer from is cracked heads. These tend to be very small cracks that occur between the valve seats. These hair-line cracks can be so small that they can even close up one the engine heats up. Perhaps as the engine cools the cracks open up and leak coolant into the combustion chambers? This might cause hard starting, but the cooler the engine gets the worse it would be. Have you recently overheated? Do you find you are mysteriously loosing coolant (even a small amount)?
What kind/brand of spark plugs do you have in the engine? Fords don't like Bosch spark plugs for some reason and most here use Motorcraft or Autolite double platinum plugs, which seem to work the best in these engines.
The cam position sensor is responsible for fuel timing. I've read that the engine should run even with a bad cam sensor, though badly, but I've also recently read that sometimes the will not run at all.
Finally, have you said you've replaced the pre-cat O2 sensors. They effect fuel trims.
I never like throwing parts at a problem w/out a reasonable assurance they will solve the problem (especially expensive parts). I know what starter motor heat-soak is. It effects the speed at which the starter spins. Nothing else. If you find that the starter seems to be spinning at the same speed cold and hot then that's not your issue. If your starter has started making weird noises, it's probably a worn bushing, but as long as the motor still spins normally that's not an urgent issue.