thermostats

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Dec 31, 2007 | 03:03 PM

jtubbs

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Joined: Dec 2007

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thermostats

ok i been reading about chaning my thermostat from the factory to a 160 or a 180. does anyone have a information about this like what has to be done or any changes thatr have to be made to the ecu so the computer will turn the fans on and off at the right degree?

Dec 31, 2007 | 03:32 PM

phil6608

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Joined: Jan 2007

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From: Stanton DE

From what I have read and herd, you do not want to go below 180.
You should not have to change anything other then the thermostat.

Dec 31, 2007 | 03:35 PM

khadma

Carpenter Local 745

Joined: Apr 2006

Posts: 5,794

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From: on da beach

I agree 180 no less.
does that make sense.
<><

Dec 31, 2007 | 04:31 PM

rsylvstr

Cargo Master

Joined: Dec 2006

Posts: 3,489

Likes: 45

From: Central NY

i asked the same question when i installed the Hypertech Power Programmer III....90% of those out there said, "leave the stock 'stat in....if you do decide to change it, do NOT go below 180"
i left the stock 'stat....she has 99k on the clock, why put her in an early grave!

Dec 31, 2007 | 06:57 PM

projectSHO89

Hotshot

Joined: Jan 2004

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From: St Louis

Just leave the stock in there....

Steve

Dec 31, 2007 | 09:55 PM

LxMan1

Moderator

Joined: Dec 2001

Posts: 22,436

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From: Louisville,Ky.

The cooler it runs, the more wear you get. The moving parts are designed to be ran around 195 degrees, plus a warmer engine is more efficient and it keeps any moisture burned out of the engine caused by condensation.

Jan 1, 2008 | 11:24 PM

ford390gashog

Fleet Owner

Joined: Jan 2004

Posts: 26,007

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From: Brentwood,CA

leave the stock one in there. You will start to run into upper cylinder wear issues.

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Jan 2, 2008 | 04:13 AM

LastSplash

Senior User

Joined: Sep 2006

Posts: 252

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From: North Pole, Alaska

If you change the thermostat it is a good idea to use one that is the same temp as stock. The ECM will not go into closed loop until the engine/coolant temp gets to a certain temp, if you put a lower temp thermostat in the engine temp may not get warm enough to allow the ECM to go to closed loop which will make your gas mileage go down to about 10mpg.