Overheating Issues
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Junior Member
Joined: Aug 2014
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I thought this seamed strange because mine spins with resistance so I looked it up in my Haynes manual.
3-3, part 4 Fan clutch check (vehicles so equipped)
1. With the engine cold (not running for at least one hour) and stopped, rotate fan by hand and feel motion. Fan should have some viscous drag and move smoothly through a full rotation. If the fan is not smooth, or either has no resistance or does not turn at all, replace the fan clutch.
That is a direct quote. There are other tests in the chapter also. So are you saying you feel resistance or it does not turn at all?
The a/c is a drag on the engine. You can expect it to raise the temperature if your cooling system is not working right.
You could also pull the thermostat back out and run it without one for a day or two to see if the truck still over heats. If it does, then you have a blockage somewhere or the water pump is faulty. Check to make sure everything is connected up right, like your heater core hoses.
3-3, part 4 Fan clutch check (vehicles so equipped)
1. With the engine cold (not running for at least one hour) and stopped, rotate fan by hand and feel motion. Fan should have some viscous drag and move smoothly through a full rotation. If the fan is not smooth, or either has no resistance or does not turn at all, replace the fan clutch.
That is a direct quote. There are other tests in the chapter also. So are you saying you feel resistance or it does not turn at all?
The a/c is a drag on the engine. You can expect it to raise the temperature if your cooling system is not working right.
You could also pull the thermostat back out and run it without one for a day or two to see if the truck still over heats. If it does, then you have a blockage somewhere or the water pump is faulty. Check to make sure everything is connected up right, like your heater core hoses.
Thread Starter
Junior Member
Joined: Aug 2014
Posts: 10
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No oil in coolant and no coolant in oil. I've wondered if head gasket is cracked internally into one of the heads and burning off. But the coolant levels stay the same. Never have to add and never low.
Thread Starter
Junior Member
Joined: Aug 2014
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I'm no genius and I'll be the first to admit it. Seldom do I find myself baffled when it comes to my rig. But this one has me stumped. I've also considered a crate engine due to this issue plus have 230k miles.
