Won't start
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Joined: Feb 2009
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Won't start
I have a 03 F250 with 50,000 miles on it. This is my first diesel. It has ran fine have put over 5k miles on it. Went out this am to move it and it wouldn't start. Turns over fine, oil is fine, check engine lite stays on, glow plug lites go out-just turns over. I replaced the CPS still no start. Please help me, I suppose to leave on a trip tomorrow morning. Thanks
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Welcome to FTE. Any smoke out the tailpipe while cranking? When's the last time you drove it? If your batteries are too weak it will spin the motor fine, but won't provide enough voltage to fire the injectors.
Also where did you get the CPS from? Some of the ones from the parts stores have been known to be bad out of the box.
Also where did you get the CPS from? Some of the ones from the parts stores have been known to be bad out of the box.
Lead Driver
Joined: Jul 2003
Posts: 7,406
Likes: 52
From: Wheatland, Mo
I had the same issue and a battery charger hooked up for about 10 minutes fired it right up. Crank but no fire. My neighbor stopped pver and pointed out that the ends of my battery cables at the batteries were swollen. Corroded badly inside the cable that it actually caused enough resistance to keep the injectors from firing.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
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From: Grand Lake, La.
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Lead Driver
Joined: Jul 2003
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From: Wheatland, Mo
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Lead Driver
Joined: Jul 2003
Posts: 7,406
Likes: 52
From: Wheatland, Mo
Mine were too but it still needed a jump. These motors are pretty finicky...but if all that is covered.....Have you checked to bowl for fuel to make sure it is getting some? You can crack the drain valve a little to see if it is getting any. If you are then I would unplug the bowl heater and try again to see if that is causing you issues.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
The relay chattering is usually due to bad connections at the batts or low voltage. Since you have checked both those things, i would start checking fuses. Billybob may be onto something with the fuel bowl heater- when it shorts out it blows the fuse that runs the PCM. No power to PCM = no start.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Clicking relays is a voltage issue. This morning it turned over fine, not it's clicking. Charge the batteries. While your letting them charge up, check the other ends of the battery cables. The grounds, alternator connection, starter solenoid all need to be in good shape.
Also check for any blown fuses, make sure you got the CPS connector plugged back in good.