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Re: Overheating...How do you check a water pump?
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Originally Posted by myersjeremy
Messing around with the truck again tonight and it seems that the top radiator hose just isnt building much pressure and is relatively cool compared to the bottom hose when the truck begins to overheat. I am seriously thinking of slapping a water pump on and getting the radiator rodded but what if its a blockage in the engine block? How would I ever be able to tell that?
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well if you put your t-stat back in this would just mean your t-stat isnt opening which means it isnt getting warm enough to open it. I had a similar problem when i first started up my engine and i had a new temp sensor and it was reading way too high and i thought the engine was getting hot. I then used the old temp sensor from the diesel and the readings were correct. Are you sure the engine is overheating and its not just the gauge?
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79 GMC Sierra 5.9 cummins, nv4500
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