1995 Aerostar engine runs hot when stopped . when ac is running it goes the temp. goes up when off the temp goes down normal

SOURCE: 1986 Ford Econoline 350 Temp Guage Problem

The gauge can very well be "lying" to you.

As a precaution, I would do a routine cooling system service on it. This includes completely flushing the coolant, replacing the thermostat and radiator cap (believe it or not, a bad cap can cause issues too).

On the few Fords I have owned, mine were always in the middle, or to the left of the middle.

Motor homes should run cooler actually, beings as they tend to have heavy duty large capacity cooling systems.

SOURCE: engine overheats when heater pipes connected

I think you could be right about there being air trapped in the system.
Or the heater core(radiator) is plugged.
Either way you need a pressurized radiator coolant pump to put the coolant in without air being trapped.
Although,i have seen it done by jacking the vehicle up high enough that the radiator was now higher than the heater core level, and then the coolant was put in.
But this is dangerous to try.

SOURCE: 98 Mustang v6 - no AC

Make sure the radiator pressure cap is the correct one and that the hose is not soft--check the lower hose and heater hoses for softness as well. They should be firm, but not hard or cracking. The temperature sensor is reporting normal operating temperature, so it and the thermostat are working correctly (hot water would blow out of the radiator if it were stuck). Check the cooling fan for free turning and no noise. Check it's grounding connection. Check the fuse box for blown fuses to the fan and to the A/C compressor. Make sure all the relays and fuses are firmly pressed into their sockets. Check the A/C compressor clutch winding for resistance--should not read infinity. Does the blower motor for the heater/A/C run when either is turned on? The A/C switch on the dash may be defective.

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SOURCE: Temp gauge fluctuates from normal, up to blow Hot,

Sounds like a head gasket problem

Shane Sterling

• 59 Answers
• Posted on Sep 14, 2011

SOURCE: Hi have a 2004 freestar I changed radiator-, water

Sounds like a faulty temp guage/r a strange malfuntion in a sensor to me as well, only doing it when it going up hill really makes no sense for the way the cooling system works so I doubt that its actually running hot, which is likely why he asked about the gurgling noise, it would force water back into the resivoir if it was running hot assuming that the thermostatic radiator cap is working properly.