Closed Loop kicks in at about 150-160 degrees...although, extreme cold can keep
it from warming up. (Nothing that a radiator blanket or letting it run for
about 10 miiutes won't fix.)
- Bernd
> Its possible the 180 t stat is not allowing the PCM to go into open loop (or
> closed loop ??) causing a rich condition. Truck is running to cold. What part
> of the country are you in Chris??? If its been real cold out lately this
> could be a problem. You may want to block a portion of the radiator (cold
> months only!!) to allow the engine to run 5 to 10 degrees warmer, just don't
> block the trans cooler.
> After i installed the 180 t-stat, I actually got a Check engine because of
> this problem.
>
> Matt Y2K-HEMI
> '00 RC 4.7L 5spd
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:58:32 EDT