I think (not sure) that if the radiator is stuck open (engine never gets
hot) you'll end up running a little rich, which would contribute to the
MPG problem.
For the record, I switched from stock to a 180 on Sunday, took a 300+
mile trip Monday & Tuesday, and saw no difference in mileage that I
can't attribute to the types of roads I was on & the fact that the PCM
was relearning for the first 50 miles or so.
Kyle Kozubal wrote:
>
> Ok......someone recently posted a 'winter and no heat' post on the DML,
> while I still have heat it doesnt seem as hot as it used to be. It still
> gets the truck warm, just think it used to be A LOT warmer. This may be a
> tsat related problem? How does the tstat control/influence how hot the heat
> gets inside my truck?
>
> Also, and someone sent me a private email says to check my tsat, which may
> cause my lower than normal gas mileage. How does the tstat affect gas
> mileage???
>
> I replaced my stock tstat at about 90,000 miles. Truck now has about 132,500
> on it. How long should a tstat last for?????? I drain the radiator every
> year and flush the system every other year. New radiator cap every other
> year also. Any ideas.......
> Kyle
> 93 Dakota 4x4 V6
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