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Old 05-12-2011, 02:03 PM
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Engine coolant temp

What are you guys engine coolant temp running? here is houston its about 85 and my engine coolant temp bearly gets over 190 cruising at 65mph.
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Old 05-12-2011, 02:09 PM
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You should be seeing 190F no matter how hot/cold it is.
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Old 05-12-2011, 02:31 PM
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Quote:
Originally Posted by NYC F-350 View Post
You should be seeing 190F no matter how hot/cold it is.
Do you think I need a new thermostat?
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Old 05-12-2011, 02:55 PM
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Normal operating temp is right around 190F. If your truck seems tohave a hard time getting to that point, yes.
These thermostats (Motorcraft units) seem to fail in the open position, which is a GOOD thing. In the aftermarket, it is like the great Forrest Gump once said "You never know what your gonna get," So, stick with Motorcraft, others might fail closed and that will cost you dearly.
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Old 05-12-2011, 03:14 PM
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Quote:
Originally Posted by NYC F-350 View Post
Normal operating temp is right around 190F. If your truck seems tohave a hard time getting to that point, yes.
These thermostats (Motorcraft units) seem to fail in the open position, which is a GOOD thing. In the aftermarket, it is like the great Forrest Gump once said "You never know what your gonna get," So, stick with Motorcraft, others might fail closed and that will cost you dearly.

Okay sounds good
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Old 05-12-2011, 04:06 PM
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I'm not far from you, Bridge City. Mine runs 192-197.
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Old 05-12-2011, 04:49 PM
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Mine has a new tstat, put in last week with the coolant flush/change. The ECT gets up to 190*F, then the stat opens, drops to 186-188, and mostly stays there, while cruising 65, empty, upper 50's- lower 60's ambient.
Is this normal? My EOT delta is staying 8-10 over ECT.
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Old 05-12-2011, 06:59 PM
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190 F? Hmmm... I am doing a flush right now and wanted to check my thermostat so threw it in some water on the stove. Got up to 210 and never opened. Then, saw the "104 C" on the side. 104 C = 219. Is a 219 tstat normal? I was thinking 180-190 would be the norm. Would the smart move be to swap it out for a Motorcraft 180 or 190?
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Old 05-12-2011, 07:43 PM
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Just went out and looked at my old Motorcraft t/stat and it is stamped 89/104C so what is 89* C in F, i could look it up
2 stroker
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Old 05-12-2011, 07:53 PM
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89 C is 192 F.

Is the 89 any part of the temp rating you think?
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