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Old 08-04-2014, 02:05 PM   #1
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Default still overheats

Ive replaced the waterpump in hopes it would fix it (needed it anyway) but it didnt. Any other ideas besides getting a rad? Ive already replaced the thermostat and done a full flush.
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It's just stiff and hard
Lube will always help this
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Old 08-04-2014, 02:08 PM   #2
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When does it overheat? Just driving around?
Engine driven fan?
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Old 08-04-2014, 10:47 PM   #3
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Anytime and yes engine driven fan. It only does it a couple times then wont do it again the rest of the time driving.
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It's just stiff and hard
Lube will always help this
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Old 08-05-2014, 05:57 AM   #4
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OK I'm wondering if the fan clutch is bad. When you replaced the water pump did you lay the fan flat?
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Old 08-05-2014, 12:30 PM   #5
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If you exonerate the cooling system (coolant, fan, thermostat) then you better start thinking about your engine. Unexplained overheating means you may have bearings going bad, or worse. But since it's intermittent, it's probably not that.
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Old 08-05-2014, 02:09 PM   #6
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Quote:
Originally Posted by bigray327 View Post
If you exonerate the cooling system (coolant, fan, thermostat) then you better start thinking about your engine. Unexplained overheating means you may have bearings going bad, or worse. But since it's intermittent, it's probably not that.
BS! When does it overheat? Any access to a scan tool to see what PCM think ECT's are? I had a bad CHT and thought it was overheating and it really wasnt..
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Old 08-05-2014, 05:15 PM   #7
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That's not a bad idea. You can also check it with an IR thermometer and an ohmmeter if you need the specs.
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Old 08-08-2014, 11:24 AM   #8
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Quote:
Originally Posted by Carcrazygts2 View Post

BS! When does it overheat? Any access to a scan tool to see what PCM think ECT's are? I had a bad CHT and thought it was overheating and it really wasnt..
I got a scan tool. Ill check when i get home from work. But mine does over heat i can smell it. And it dont do it as much now that i got the new waterpump. Old one was ate up. It may have a clogged rad from what ive heard talking to a few friends at ford. And like i said. It will sky rocket in temp for a few seconds then drop back to normal. Ive also heard a air bubble can cause this? I do know i need new heads on the truck valve seats are trashed on 8 and 1
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It's just stiff and hard
Lube will always help this
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Old Today, 03:22 PM   #9
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What about cruising speeds 25-35 its fine for hours but I hit the highway 65 for about 5 miles then the temps starts soaring?
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