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Old 05-05-2013, 08:49 PM   #1
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Ford Super Duty Owner
Join Date: May 2013
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F460 engine cranks,won't start and clicks behind power distribution box

Our 1995 motorhome stalled and when restarted it only cranked but wouldn't turn over and had clicking noises behind power distribution box. Checked fuses and relay switches and replaced a relay switch but no change. Just purchased a month ago a drove it a few miles and ran great. Battery tests good. Any ideas on what is causing this problem ?

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Old 05-05-2013, 09:09 PM   #2
Join Date: Mar 2013
Posts: 58

Not sure what chassis a F460 is but your symptoms sounds just like a problem I had on a 2000 Ford F550. Ended up being a bad ground connection on the battery. Blew my mind because it would turn over just fine. Turned out the voltage was dropping below the engine computer threshold (9.0 volts or there about) and the computer turned OFF and would then turn back on - causing all the relays and switches behind the dash keep cycling on and off. Cleaned all the battery terminals and all was well.


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Old 05-05-2013, 09:59 PM   #3
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Rvch56, sorry what you stated confuses me. You said it would crank but wouldn't turn over. To me that is very confusing. Are you saying that you can spin the motor with the starter and it will not fire up and run. Or are you saying that when you try and start if the motor will not turn over and all you hear is a clicking sound. I am assuming that the starter is not turning over UHF motor and all you hear is a clicking sound. If that is correct then the clicking sound is the starter relay and that normally clicks because there is not enough voltage to hold it when there is a high current drain such as the starter motor trying to turn. You say the battery is good so most likely this is caused by a dirty or loose positive or negative battery cable. Keep it simple and try the obvious first. Go to a auto parts store and buy a special battery wire brush and disconnect both battery cables and clean the battery posts and the inside of the battery cables if there is corrosion on the ends of the battery cables the first clean them off with a baking soda solution before you wire brush them. Then install the cables and make sure they are tight and try and start it again. If you still have problems then take your battery to an auto parts store and have it checked under load. Let us know what happens and we can go from there.
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"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
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