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so someone asked if the heater pumps out as much heat as what the gauge shows and YES it does.... if I am only 1/4 from the left (the temp gauge) I am only getting warm heat. It takes a long time for my Rodeo to warm up even when I let it set for about 10 mins/ drive it for about 25+ miles, still shows only 1/4.... I keep asking because I really dont want to dive into taking that intake off and everything around it :/ I havent been that deep in yet lol It will get about half wich is the norm but not like it use too, I just dont want to screw something up and have it over heat from it giving me wrong readings

any help would be great
Thanks guys/gals
 

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have you replaced the t-stat yet?

At 12yrs of age, it's definitely time for replacement if it's original, and so is the radiator. These radiators are typically only good for 7-10yrs, even if it *looks* good, doesn't mean it is.
 

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It is most likely the stat. Its sole responsibility is to regulate the coolant temperature. And your not so hot heater is good indication that it may be stuck open.
 

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I have a different engine but my Pup took way to long to deliver heat, so I changed the t stat and that was the problem. I inspected the old stock one, it was made in 88 and was stuck open. But mine was extemely easy to get to. If you have one, take a lazer temp probe and "shoot" the t stat area or radiator hoses or heater core hoses and see what the temp is. Should be around 190 at the t stat.
 
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