99 7.3 Won't Start? - Ford Powerstroke Diesel Forum
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Old 11-20-2011, 04:29 PM
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99 7.3 Won't Start?

Well never had a problem with it not starting before, even when it was cold.....drove it the weekend before, started fine, ran fine and then went to start it to move it...and nothing?......Wait to start light is not on?.....It did crank over just never sounded like it even wanted to start.....Is their a fuse or something that might cause this?......Or at least a few things that I should check?......Don't know a whole lot about these engines......Any help would be greatly appreciated........Mack
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Old 11-29-2011, 05:12 PM
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You need to check the glow plugs to see if they are getting power, if not look into either a
glowplug solenoid, or possibly the glowplug switch thats located in the intake.
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Old 11-29-2011, 05:26 PM
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Quote:
Originally Posted by ag71953 View Post
You need to check the glow plugs to see if they are getting power, if not look into either a
glowplug solenoid, or possibly the glowplug switch thats located in the intake.
Thanks for the reply......is there a easy way you can explain to me how to do this?........Truck has just been sitting.......Don't know much about diesels and not sure where to start.......I'm not stupid, just don't know anything about these trucks........other then I like them.......Thanks, again...Mack
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Old 12-18-2011, 04:09 PM
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Check 30A fuse inside that is for PCM power relay and fuel heater. If blown you probably have a bad fuel bowl heater and/or wiring to it. Disconnect the wiring to heater on side of fuel bowl and replace fuse!
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Old 12-21-2011, 04:24 PM
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I did check the fuse, and it started and ran fine......but when driving it the other day it just stopped running when I was driving down the road.......lucky I was just in a sub division, and I put it in neutral and it started right back up......

Then on the way home later that night it did it again....but this time it wouldn't start.......until I took the fuse out and put it back in....it ran fine till I got it home......bad fuse maybe?......or any other ideas.......Thanks for the help.........Mack
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Old 12-22-2011, 07:10 AM
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I had a bad fuse socket(PCM relay fuse) from a previous owner using a tap-a-fuse in it. Wiggle the fuse in the socket, if you hear clicking(from relays) and the WTS light comes on, you have a bad socket. I bent the fuse a little bit and was able to get a good connection.
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Old 01-11-2012, 08:54 PM
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does this fuse mean the same if mine wont crank now but wait to start light comes on like normal?
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