Temp gauge not working correctly

my dash temp gauge only moves up a little when its warm is it the gauge or the sensor and WHICH sensor ? there are two temp sensors ?
 

ROSEDOGGYDOG

umop apisdn w,I
Re: Temp gauge not working correctly

I remember having this problem a year about this time. Mine only and I mean if I'm lucky gets to the 1/4 mark. For safe measure I replaced my radiator cap with a Mr. something radiator cap that has a thermostat in it. Both seem to be fine.

But if I were you just to make sure, I'd go buy a cheap mechanical water temp gauge (sunpro $10-$20) and run it to your temp sending unit and let your truck get up to temp just to verify.
 
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