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Old 11-05-2010, 12:58 PM
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ECT Question

I have a 06 and it has the latest flash. My question is according to my insight my ECT usually stays right at 180. Now in the summer when it's in the 90 or 100's the temp will go in the 190 range but normal driving on the highway it runs right at 180. Is this normal? I tried a search and I noticed most say there's runs 190+. My EOT according to my insight runs about 8-10 degrees hotter than my coolant. Thanks for any help.
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Old 11-05-2010, 01:10 PM
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Kind of low, but I wouldn't worry too much about it. I'd rather it be a little low than high . Mine runs between 185 and 200 depending on the engine load. The EOT looks great!
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Old 11-05-2010, 01:15 PM
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There's a thread that is pretty close to your's:

EOT and ECT wont get warmed up??

The general consensus on that one is that the thermostat is stuck open

My number's are real close to what you were sayin'
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Old 11-05-2010, 01:16 PM
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I was just wondering if maybe my insight might be off or just my thermostat might be screwed up?I know I can watch my insight running down the highway and it will be 179-180 that is unloaded just cruising around. It will climb some with a load on the motor but not alot.
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Old 11-05-2010, 01:18 PM
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Quote:
Originally Posted by 2006PSDSD View Post
Kind of low, but I wouldn't worry too much about it. I'd rather it be a little low than high . Mine runs between 185 and 200 depending on the engine load. The EOT looks great!

Actually the diesel runs better with some heat in it. That's why they make a 203* thermostat. At 180 there is no reason to panic but it might run a little better and get a little better mileage if you get a little more heat in it. Thermostats are cheap and easy to change.
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Old 11-05-2010, 01:18 PM
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Quote:
Originally Posted by 06diesel350 View Post
There's a thread that is pretty close to your's:

EOT and ECT wont get warmed up??

The general consensus on that one is that the thermostat is stuck open

My number's are real close to what you were sayin'
Thanks for the link. That sounds just like mine. Awhile back I had to have some work done to mine and they put a new oil cooler in and FICM. I am wondering if maybe when they flushed my coolant system they installed the thermostat wrong? I guess I need to take it out and see.
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Old 11-05-2010, 01:24 PM
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Thank you for the replies. One more question. I went out and looked at where the thermostat is located. Will I lose much coolant when pulling that hose off?
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Old 11-05-2010, 01:31 PM
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Drain 2 gallons will get you below the area in question. I drain into milk jugs. But the jugs I use are brand new, never been used. So keep it clean and pour back in when job is done.
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Old 11-05-2010, 01:34 PM
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Is there a drain plug somewhere? Sorry for all the questions.
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Old 11-05-2010, 01:37 PM
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Originally Posted by smokeless View Post
Is there a drain plug somewhere? Sorry for all the questions.
Yes, see it right behind the brass nut? It's white and plastic. The little drain tube is right there. Bottom of Radiator. Towards driver side.

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