Wont Crank
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Wont Crank
I have a 2002 7.3 PSD. Last night I went out for a ride, and everything seemed fine. Woke up this morning and it will not start. I took the fuel filter out and turned the key on, there is fuel being pumped into the bowl. I also checked all fuses in the fuse box. I understand this is a broad question, but some ideas on what to check would be greatly appreciated. I prolly shouldnt have, but I did give it a 1 second shot of starting fluid and it started for a couple seconds. I had a mechanic tell me it sounded like the glow plug module.... but it is 90 degrees outside, shouldnt it start without the plugs anyway? I think it is some kind of fuel issue?
Post Fiend
Joined: Mar 2007
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From: Texas
Welcome to FTE. What happens when you turn the key? If the engine spins, but does not start the first thing to check is your batteries. Weak batteries will spin the engine fast enough, but not provide the voltage required for the computer to fire the injectors. You can also make sure there is no corrosion on the cables.
You don't need the glow plugs to start at 90 deg, so I'd skip that for now.
You don't need the glow plugs to start at 90 deg, so I'd skip that for now.
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Yes, engine spins and batteries are fully charged. The HPOP o-rings recently started leaking, and the oil was low. But i topped the oil off and it is in the full mark on the dipstick. It was almost 3 quarts low when I cought it.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
It sounds electrical to me as well.
After the batteries are verified good, you could try unplugging and re-connecting the CPS. Camshaft Position Sensor.
CPS is mounted at around the 10:00 position in relation to the crankshaft pulley.
After the batteries are verified good, you could try unplugging and re-connecting the CPS. Camshaft Position Sensor.
CPS is mounted at around the 10:00 position in relation to the crankshaft pulley.
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I will try the CPS. I just had it replaced under recall about 2 weeks ago at the dealership. And the oil has about 3,500 miles on it. I didnt catch the leaking HPOP rings because I have been parking in gravel for about a week. I am sure thats why the oil level was low. Is there any kind of low oil sensor that may need reset?
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Fleet Owner
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We have a winner!!! Kwikk... Thank you kindly! Thank everyone! I turned the key on, unplugged, plugged back in the CPS and it is purring! All the dollar signs that were in my head are layed to rest. Thanks again guy's!
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I have an update on this problem, just curious if anyone else has had the same problem. 2 weeks ago I took my truck in for a diagnostic on an unrelated problem (short in the accelerator pedal) Anyway, when I went to pick the truck up, they said there was a recall on the CPS and they put a new one on for me. A couple days later is when I posted this thread and found out the new CPS was bad. Now this has happened 2 more times and I am sitting home for the weekend without a truck!!! 3 CPS's in the last week! Any suggestions? I never had any problem out of the original one. They put a new one on and cant keep my truck on the road. The worst thing is being pulled to the dealership behind my dad's DODGE!!! ughh 
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
The slightest bit of corrosion will dirty up the electrical signal.
You may have to replace the connectors inside the plug, and not necessarily need another CPS.
Three in a row like that in such a short period of time makes me think that it is NOT the CPS, but rather something else.
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Also, do you live in and area where they salt the road in the winter? Salt is VERY insidious. It will travel up a wiring harness and turn the entire length of the conductor black with no change in the outside appearance of the insulator at all.
Stuff to check.......
Stuff to check.......