redneckromeo91

What kind of problems, if any, can I expect from going from a 195 thermostat to a 160 in my. '05 f150 5.4?

4x4angel

Your mpg's will suck , cause the computer , be thinking , that your engine is still warming up . On 160

redneckromeo91

Well I had my programmer reset my computer after I installed it and I have yet to see any decrease in fuel mileage...thanx though :-) I will keep ya posted

redneckromeo91

Well....i did in fact have that that mpg decreases that i was told about and a few other problems...getting that crap fixed now killed my mpg by like 7, i was gettin 17-19 with 35's and a 4" lift now im rollin about 10 daily whenn babying the throttle

Phyer Phyter

A thermostat controls how fast your engine warms up. The temp rating 160, 180, 195 etc is the temp that it opens up. While closed it blocks or restricts coolant flow through your radiator forcing your motor to build heat up before it opens. Remember, when your motor is at operating temperature usually around 212 or 215 *F your thermostat is wide open regardless of what temp rating it has. As far as computer sensors needing heat to work - then there would be a lot of vehicles in North America that wouldnt run between Sept and April so therefore that statement is not accurate.

On a really cold day it may seem like it takes longer to warm up thats about all.