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Truck runs better when overheated

783 views 7 replies 4 participants last post by  jsmith1969 
#1 ·
So after I did all the motor work in my 01 ram 1500 5.2 I put a new temp switch and thermostat in the truck just to find that the truck is overheating and not staying at a good temp but the main thing I need an answer on is why the hell the truck runs flawless when overheated but when at a normal temp the truck hesitates and almost died when revving the motor. I know people know a lot more about these trucks then I do, so any suggestions would be nice LOL.


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#2 ·
Is the check engine light on or anything like that? Have you checked anything in the cooling system out? I would also check out the vacuum lines, when one of those crack they can cause stalling that sometimes gets better as the motor warms up. What kind of motor work did you do?
 
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