Ford 83-94 6.9 and 7.3L General Discussion of 83-94 6.9 and 7.3 Liter Ford Diesels

upper radiator hose

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Old Jun 16, 2011 | 04:46 PM
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Default upper radiator hose

Anyone had the problem of the upper radiator hose sucking itself flat??? It has a new one on it and it will suck it flat and heat up quick.... 1994 F-250 7.3L stock turbo
 
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Old Jun 16, 2011 | 06:44 PM
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check your rad cap.
 
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Old Jun 18, 2011 | 11:05 AM
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has a new one on it and i pressure checked it and the radiator.
 
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Old Jun 18, 2011 | 03:05 PM
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possible it is the wrong cap? for some reason your system is holding vacuume
 
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Old Jun 20, 2011 | 05:48 PM
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could the thermostat be causing it by any chance?
 
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Old Jun 20, 2011 | 07:26 PM
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possibly, but doubt it. could be the bypass in the thermostat housing is blocked. if u do swap the tstat, only install a ford or IH one.
 
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Old Jun 20, 2011 | 09:56 PM
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Default overheating

did you change thermostat when you put new hose on? and if you did possibly you put thermostat in backwards.
 

Last edited by css89; Jun 20, 2011 at 09:57 PM. Reason: spelling
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Old Jun 26, 2011 | 08:13 PM
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no didnt change tstat but i am in the process now and the bypass was blocked by the way......
 
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Old Jul 4, 2011 | 11:15 AM
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It ended up being the thermostat. Thanks for the input
 
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