I'm not sure if this is normal but it seems like my truck takes forever to warm up. For example here is a scenario: Plugged in all night, less than 25 degrees, idle for five to ten minutes, drive mix of in town and highway driving for 25 miles and about 35 minutes and the truck is still not warmed up all the way. Judging by the gauge I would say the temp gets to about 160 degrees by then. It takes at least 45 minutes to warm up all the way when it is below 25 degrees. It has always done this since I got the truck two years ago with 108k on it. I didn't really think anything of it but now i'm getting annoyed. Is this normal or could there be a problem?

 

I would def replace the thermostat, easy fix and shouldnt take to long. If that doesnt do it then i would consider flushing the system

 

Also, when it does get all the way up, it will hold the temp for as long as its running. But I think I will replace the t stat anyways cause its cheap

 

You may consider a cold front in that temperature. It always takes these beasts a while to warm up. Even in 40 deg weather it takes mine at least 20 miles at 60 MPH to warm up to operating temperature.

 

Try a cold front. If then it doesn't make a difference, then you ought to look at the t-stat.

 

I recently flushed out my trucks cooling system and replaced the thermostat. Make note that the thermostat has two small air bleeds that will constantly flow a very reduced amount of coolant.

This is why they take a while to warm up.

 

I soldered one of the air bleeds closed on a new thermostat and I have a winterfront one the rad and a Lund winterfront on the grille. Then you have to watch the exhaust temp cause it will come up faster that the water temp with the aftercooler core covered. The saving grace for that is, in Alberta our roads are so ice and snow covered that you can't stay on the throttle long enough to make a lot of exhaust temp. Alberta's snow removal program is called July.
Jim O

 

LOL.