1989 Ford E-150 Econoline Cargo Van Vapor Locking?
I have a 1989 Ford E-150 Econoline Cargo Van with a 6-cylinder 4.9 EFI engine and an automatic tranny. It runs great in cold weather but as soon as it starts getting hot it will run about 20 minutes and act as if it is vapor locking. I have to let it sit for 20 minutes to an hour before I can get it runnung again.
I have replaced the electronic fuel pump, fuel filter, EGR Valve, EGR Sensor, O2 Sensor, Ignition control module, new spark plugs, wires, distributor cap & rotor, and PVC valve.
Got on the road and after about 15 minutes down the highway the oil pressure gage dropped to zero (I HAVE TRIPLE CHECKED THE OIL AND IT IS FILLED TO THE APPROPRIATE LEVEL) and a few minutes later the check engine light light came on....5 minutes after the check engine light came on it started hesitating....doing its slow roll and die dance on the highway.
Please any ideas would help
that's some sensor, you'll need to have it scanned to find it, I had the same prob with a T-bird,. Never did find out which sensor caused it, but it was electrical and I found I could restart it if I polarized the hot side of the coil.with a jumper wire. the last time it died was at the Ford dealer, I traded it on a Mustang..
if it was vapor locking, you could start it by spraying start fluid or carb, injector cleaner in the intake..
Maybe water or dirt in the gas tank and it takes a while to work up to the engine and then falls off the tank filter when you stop...
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