EVERY NOW AND THEN TRUCK WONT START
Sound like your fuel pump is loosing prime. May look into replacement.
Testimonial: "NO BUT THANK YOU REPLACED FUEL PUMP AND PUMP MODULE LAST WEEK NO DIFFERENCE"
Have you thought about the MAF sensor? Next time the truck will not start remove the plug to MAF sensor. Do not spray ether. Try and crank with the sensor disconnected. See if there is any difference. The ether may not be so much as starting engine but cleaning/showing air movement on the MAF sensor. Other possibilities include fuel filter ( though this should have been changed when pump was done), try cleaning throttle position sensor (TPS). Just a couple more ideas.
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SOURCE: truck starts, dies. truck runs good some days,bad the next
I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!
SOURCE: 2000 F 250 WILL NOT START CRANKS OVER ONLY.
you should have the pcm scanned for dtc's... probably a bad crank or cam sensor
SOURCE: '03 F-350 7.3 Powerstroke cranks but doesn't start.
with out doing alot of testing
we have found alot of cam sensors going bad in the 7.3 powerstrokes
i just had one in last week with a new sensor that only lasted a month
SOURCE: 1987 F 250 fuel pump circuit problem
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SOURCE: truck stalls while driving, will start again if wait ten minutes
Ok, this sounds like a weak fuel pump and clogged filter. if possible, you will need to change these two vital devices. I would also replace the air filter as well.
Inspect the injection system for faults as well. make sure all injectors are firing properly and on time. replace any injector that isn't functioning correctly.
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