96 PSD Wont crank
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5th Wheeling
Joined: Jan 2006
Posts: 28
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96 PSD Wont crank
I'm having problems starting my 96 F350 PSD. I seems to be an intermittant problem. Some days I can start it normally, drive it all day it is fine. Other days, it will not turn over at all. Go to "wait to start" you see the volt guage power level decrease as if the glow plugs are getting power. Once you try to start the engine, you hear a single click. The motor will not turn over. When it has this problem, the only way I am able to start the truck is to place a screwdriver over the fender relay. Ive replaced the batteries, there new. The alternator was rebuilt a year ago. It is putting out 14.57 VDC. Batteries have been load tested as good. All connections to and from the batteries are clean. The fender starter relay was replaced as well. Any other suggestions Thanks
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5th Wheeling
Joined: Jan 2006
Posts: 28
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Replaced the fender starter relay. Hmm Upon start up i hear clicks and i am not able to jump it at the starter relay I am thinking it is the alternator, because the batteries were dead. When it was running, I got 14 + VDC at the battery.
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Posting Guru
Joined: Sep 2004
Posts: 1,096
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From: Ohio
your going to hear clicks to reset relays I think if the key is on. If your batts were dead then you have a open short. I agree though that if you were to jump the relay and it started that it is obviously a bad relay. make sure that you have it wired corretly, and that you have connections secured so your not getting a voltage drop. Your on track, dont lose sight of the problem. If the truck is running and you got 14 volts, it could not possibly be the alt, batts dont charge themselves. If it was the alt, when you started it you would notice voltage drop, not when you had it shut off.
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5th Wheeling
Joined: Jan 2006
Posts: 28
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It is now three relays in two weeks. I strongly feel that I am looking at multiple problems. Just not knowing what they all are is frustrating. I think my next step will be hunting down the possibility of an electrical short.
Post Fiend
Joined: Oct 2003
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From: MICHIGAN
NOTE: There is a possibility of blowing a fuse in the meter if you have a draw higher than the meter is rated. Use a test light first...it should be very, very dim. If it's bright use the test light instead of your meter.
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5th Wheeling
Joined: Jan 2006
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Checked GPR, Batteries disconnected all night. Re-installed batteries, 13.02 vdc at battery. At the GPR constant power scource was aslo 13.02 vdc. Attempted to start the truck and it started just fine. Quick to start and no smoke. I let it run for about five minutes, the battery voltage came uo to 14.35 vdc. I shut the truck off and restarted it. Hmm, it will not turn over. I am hearing a click as i try to start the truck. this is the fender starter relay and the starter. The starter feels as if it is enguaging, but will not turn over.
