Degas bottle problem. HELP - Ford Powerstroke Diesel Forum
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Old 03-06-2013, 06:44 PM
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Degas bottle problem. HELP

My coolant is not sucking back into,my radiator after driving it. Coolant in degas bottle is almost to the top, so idk if i should keep driving it as is. I have no clue what could be wrong. I was told a coolant leak somewhere along the line, i had a radiator leak and put stop leak in it, which i know now was a bad idea. I am new at diesels, so had no idea. There is ome greenish looking stuff in the valley, i was thinking fuel, but idk? Any help would be appreciated.
Tyler
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Old 03-07-2013, 07:23 AM
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Dip ur fingers in the "greenish" looking stuff and smell it if it smells like coolant it could be a bad heater hose.if its diesel it might be time to reseal ur fuel bowl and change the three little hoses off the fuel pump. Or possibly be fuel pump leaking
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Old 03-07-2013, 07:46 AM
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It is fuel, i changed my fuel filter not too long ago and it leaked cause i didnt get it tight enough first time. But any idea as to why it wouldnt be sucking back into the radiator? Thats really bugging me, nothing leaks to my knowledge now.
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Old 03-07-2013, 09:53 AM
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Maybe the stop leak stuff clogged up the line from the reservoir into the radiator?
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Old 03-07-2013, 10:37 AM
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Could be, but the coolant still flows into the reservoir, just not out of it? Im going to try to replace the radiator cap and see what happens. Could a bad radiator cap cause that?
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Old 03-07-2013, 11:04 AM
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Not 100 percent sure but i would say it could
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Old 03-07-2013, 11:39 AM
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Ok, i will try replacing it and hope it works.
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Old 03-07-2013, 12:43 PM
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Are you talking about the cap on the degas bottle? Or do you have a radiator with a cap? If your radiator has a cap, it's the wrong radiator, and it may be why the coolant isn't flowing the way it should.
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Old 03-07-2013, 12:53 PM
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I have a radiator with a cap. The early 94.5s and 95s came with a cap on the radiator. The radiator cap part # is motorcraft rs 90.
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Old 03-07-2013, 12:58 PM
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Then it shouldn't have a degas bottle, at least I don't think it should. AFAIK the early trucks with the rads with caps had an old-school non-pressurized overflow bottle instead of the degas res. If that's what you have, and it's filling up but never returning to the radiator, then for sure it's the cap.
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