overheating
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overheating
My truck (96 5 liter f150) overheated last night. it looks like the bottom plug on the throttle body blew out. can I drill and tap it? are there replacement plugs? why would it have blown? when I bought the truck i was told it intermittently over heats, this was the first since I've had it. I'm pretty sure the thermostat is working because I can see the temp climb when started and then drop after a short time. I'm not sure if the water pump is working consistently or the thermostat is working consistently or what else might be wrong.
questions
1) why would it intermittently overheat?
2) what would cause those throttle body plugs to blow out?
3) should I just replace the water pump/thermostat/and throttle body? if not what pieces should i leave out.
4) could it be the clutch fan?
I'm not sure what the problem is but I'm wanting this fixed.
questions
1) why would it intermittently overheat?
2) what would cause those throttle body plugs to blow out?
3) should I just replace the water pump/thermostat/and throttle body? if not what pieces should i leave out.
4) could it be the clutch fan?
I'm not sure what the problem is but I'm wanting this fixed.
More Turbo
Joined: Jun 2012
Posts: 520
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From: Deepwater Mo.
A good thermostat does not climb past the temperature specified by the manufacturer. It should climb to operating temperature and the temperature should stay steady at all times....If it pasts the manufacturers operating temperature rating on the gauge and then drops down to operating temperature it is not functioning properly. I have went through many of types of thermostats with problems...The only ones I will use are triple bridged type thermostats. I have had to many problems with the double bridged type thermostats.
IF your water pump is not leaking or making any types of unusual noises then leave it alone. That's just my opinion.
For the throttle body, I don'y know why that happened. You can try fixing it or just get a used one from a junk yard or E-bay.
If your radiator hoses are collapsing on you it will overheat....If they are old I would replace them to prevent collapsing....
If its over heating or the temperature gauge is moving to much on you replace the thermostat with a good triple bridged type thermostat. http://www.oreillyauto.com/site/c/se...150&vi=1122286
I can not answer the question for the fan clutch part.
IF your water pump is not leaking or making any types of unusual noises then leave it alone. That's just my opinion.
For the throttle body, I don'y know why that happened. You can try fixing it or just get a used one from a junk yard or E-bay.
If your radiator hoses are collapsing on you it will overheat....If they are old I would replace them to prevent collapsing....
If its over heating or the temperature gauge is moving to much on you replace the thermostat with a good triple bridged type thermostat. http://www.oreillyauto.com/site/c/se...150&vi=1122286
I can not answer the question for the fan clutch part.
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ok I will get a new thermostat maybe replace the hoses as well. I was talking to a friend who's wrenched a lot on 5.0 mustangs and suggested just bypassing the water in the throttle body by attaching the 2 hoses with a barb. Any one see a problem with that?
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ok fixed the leak in the throttle body and changed the thermostat trying to get this overheating problem fixed. now the truck will idle at normal temps (needle pointing at the r of normal). When I get out and drive the truck it runs hot ( needle on the L of normal) the water is definitely flowing thru the rad as I can see it with the rad cap off. lots of rusty colors and what not...I've flushed it several times already and still getting rusty in the coolant/antifreeze.
Should I just keep flushing.
is it a plugged or partially plugged rad?
I mentioned the fan clutch when up to temp and shut the engine down, the fan makes maybe 2 or 3 revolutions. I know if it keeps spinning its a sign of a bad fan clutch but i'm not sure how much it should spin with a good one.
any suggestions?
Should I just keep flushing.
is it a plugged or partially plugged rad?
I mentioned the fan clutch when up to temp and shut the engine down, the fan makes maybe 2 or 3 revolutions. I know if it keeps spinning its a sign of a bad fan clutch but i'm not sure how much it should spin with a good one.
any suggestions?
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ok replaced the radiator and still doing the same thing...
At this point my options are fan clutch or faulty new thermostat... what say you all?
At this point my options are fan clutch or faulty new thermostat... what say you all?
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From: southern maryland
i know i was not asked but did you bleed the cooling system air in the system will cause intermittent over heats. how is the heat in your truck take the tstat out and run the truck if it is the stat sticking then is should quiet the issue. is the fan clutch tough to spin does it spin freely and how is the water pump belt tension it could also be you have a plugged cooling system. and not trying to but in on you alls conversation if i bother you just tell me to bug off. and running the truck with out a thermostat is not a good idea but could give you an idea
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i know i was not asked but did you bleed the cooling system air in the system will cause intermittent over heats. how is the heat in your truck take the tstat out and run the truck if it is the stat sticking then is should quiet the issue. is the fan clutch tough to spin does it spin freely and how is the water pump belt tension it could also be you have a plugged cooling system. and not trying to but in on you alls conversation if i bother you just tell me to bug off. and running the truck with out a thermostat is not a good idea but could give you an idea
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From: southern maryland
fords heater core sits high up in the fire wall i would raise the front end just enough to level it turn the temp control to hot and let it run high idle til it comes up to temp might have to burp the hoses and try putting the radiator cap on and off if you have a clutch fan you should then it should spin with resistance like it does and feel the heater hoses one of them should get hot
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