Cooling Issues(HELP)
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Cooling Issues(HELP)
I have an 05 5.9 that runs around 200 normal and light trailers and 210 with heavy loads and 40ft camper. just recently it gets 215 randomly driving no trailers and even hotter when going uphill. coolant is slowing disappearing somewhere (not in oil) just changed oil today and filled coolant levels up. need a new fan clutch soon but that can not be the reason it spikes temp when driving 70mph. at idle it doesn't get even warm it stays at normal 190. had a few say may have an air pocket in the line or headgasket on the valve side (hints no water in oil) or water pump. anyone have any related problems or tricks or tips or ideas what it could be? or any good mechanics in the east texas area?
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