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  #1  
Old 04-12-2011, 05:38 PM
stodg73's Avatar
stodg73 stodg73 is offline
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Default Truck won't get hotter that 150*!

My truck wont get hotter than 150*, and this is pulling about 8k.

Without pulling anything, it only get to 140*.

Is it time for a thermostat and radiator flush? It still has everything that is came with stock, i.e. coolant, thermostat, etc.
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  #2  
Old 04-12-2011, 06:03 PM
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ISX ISX is offline
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Default

Sounds like your thermostat is stuck open. Check that and check the water pump for the heck of it as well, making sure the bearings are still good on it.
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  #3  
Old 04-12-2011, 06:14 PM
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Mopar1973Man Mopar1973Man is offline
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Default

I agree... Sound like the thermostat is stuck open...

I normally do coolant changes every year with a fresh thermostat each time. I've never had a cooling or heating problem since I purchased the truck new. Radiator is spotless internally and rarely does my temps go below 188*F in the winter (idling) or over 200*F pulling heavy loads of firewood in the summer.

Might also be a good time to pull the radiator and intercooler and clean the faces off good. You'd be surprised how much junk and debris will pile up on the bottom 20% of the radiator and intercooler.
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