7.3 powerstroke wont start
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New User
Joined: Mar 2019
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7.3 powerstroke wont start
Been having an issue with it just driving down the road it shuts off. No warning no lights. Just shuts off.. third time i change cp sensor it started up. Thought i had it. WRONG AGAIN!!. So i changed fuel pump and it started. I pulled it put of the driveway and put it in drive and well had to be pulled back in by my tractor. What ever is doing it it shuts down fuel pump and diognostic doesnt even pick up anything from the pcm. Any help would be gratful. Im tired of its games
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
Welcome to FTE.
Bad batteries or corroded connections can cause all kinds of issues with the truck. Unless the batteries are brand new I would charge them individually and have them individually load tested. Do you have any gauges, fuel pressure would definitely help in this situation? Have you checked your fuses that they are all tight and firmly in place? If you take a flashlight and look underneath your dash at the back of the fuse box do you see any indication of water intrusion? Water will leak into the windshield and cause all kinds of electrical gremlins. Is the truck giving you any kind of codes??
Bad batteries or corroded connections can cause all kinds of issues with the truck. Unless the batteries are brand new I would charge them individually and have them individually load tested. Do you have any gauges, fuel pressure would definitely help in this situation? Have you checked your fuses that they are all tight and firmly in place? If you take a flashlight and look underneath your dash at the back of the fuse box do you see any indication of water intrusion? Water will leak into the windshield and cause all kinds of electrical gremlins. Is the truck giving you any kind of codes??
Junior User
Joined: Oct 2017
Posts: 72
Likes: 1
From: Oklahoma City
Check the wire going to the cp sensor. Mine did the same thing and it ended up that wire was shorting against the engine and causing it to die. The short was just above the cp sensor at the front of the engine.
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