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  1. M

    03 only overheats with the AC running

    180xxx miles on it. I have run down the list checking everything one by one and I've eliminated 1. I have no air coming into the reservoir with the cap off. 2. The top radiator hose stays cool until the engine reaches a high operating temperature (I'm not sure on the exact temperature). 3...
  2. M

    03 only overheats with the AC running

    I can drive all day with the windows down in cold weather or hot. I can turn the AC on and drive for 30 or so minutes in town or on the highway and after that amount of time I notice the temperature guage rise. If I turn off the AC the temperature will go down but if I keep it on the truck will...
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