1995 Ford Ranger 3.0 only gets to about 155-165 degrees??? on 1995 Ford Ranger

I can't get my pickup to get to temp. I have replace thermostat, radiator cap, fan clutch ( it was stuck engaged). I have put it on a scan tool cuz it throws engine codes because it wont allow different system to operate till it's at operating temp. The codes it gives are...PO-0124 & PO-5401. Collaborative is up so I'm not sure where the one code came from. Any ideas. I haven't done a coolant flush. Thought????

by in Rexburg, ID on May 29, 2013
1 answer 8 comments
ANSWER by on May 29, 2013
Gauge and computer agree?
COMMENT by on May 29, 2013
They seem to, gauge seems low to me as we'll. when I bought the truck it wouldn't even get above the c on the gauge.
COMMENT by on May 29, 2013
Using a 195° stat?
COMMENT by on May 29, 2013
Yes sir.
COMMENT by on May 29, 2013
Try another stat and brand like Stant or one from NAPA. I have had defective new parts before! Thermostat is the only thing that can cause this.
COMMENT by on May 29, 2013
I'll give it a try and let you know, thanks.
COMMENT by on May 29, 2013
THM 530090 is NAPA #.
COMMENT by on May 29, 2013
I'll go snag one right now, thanks.
COMMENT by on May 29, 2013
1038ST gasket as well.

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