Over Heating

[5.0 coup]

Well here is how the outcome is on the 5.0 coup, the stang would heat up to about, (example on the temp where it reads N O R M A L) when driving anywhere the temp ia always betwen the O & R but as soon as i park the temp would go to the M or the A to me thats to hot the stang would not respond to good. Any ways i took out the 160* thermastat and put the 180 and well again the temp did the same thing and i used an infered temp gun and it read 230* and it has a shrud, new fan, got a clutch from a friend he said it worked real good for him replaced the heating element thats in the intake, checked for leaks and new cap, checked for any signs of water in oil it was clean purged for any air in systym. can any body tell me about what temp the run on a daily basis and again this anly happens when i am parked for a while

1989 coup stang with K&N filter, 65 mass air metter, 70mm TB, edlebrok performer intake with heat spacer, adjustable fuel regulater set at 38#, 24lb injectors, street race pullys, equel length headers, h-pipe 2 1/2 all the way back, 3.55 gears, E cam, TPS set at 99.9, three core radiator, trans shift kit, 2800 stall converter, high rev covernor in AOD, high performance clutches.

 

[HISSIN50]

i am not sure what you mean: does the gauge continue to climb while idling or after you shut the car off? the latter is normal.

and are you still guessing? you really should get a real gauge on there. An I/R gun is nice, but it is measuring the temperature of the surrounding metal, not the actual coolant temps. a 10 dollar gauge can really help diagnostics.

my two cents. good luck.

 

[5.0 coup]

the temp will start to climb but so far i have not givin it a chance dont want to take that chance, and when cheaking the temp with temp gun i check where the thermastat is lokated right at the truoght. PS how do you know when a fan clutch is going out and can you here or see a difference on the fan speed when ingaging the AC thanks Leo

 

[HISSIN50]

Leo, i hate to say it, but you need to get a real gauge to know. here is the thing. the coolant inside the thermostat housing (i think that might be what you tried to type - I could not understand that part) is, say, 200*F. the metal housing might be emitting a much higher temp. you would need to shoot the actual coolant itself, and that does not work since you would have to depressurize the cooling system to read the actual coolant.

on a stock fan clutch, it is a thermal clutch (read its lock up capacity is based upon its temperature). turning on a/c has nothing to do with it (unless you turn on the a/c on a colder motor, and the a/c causes the motor to warm up faster [due to less heat rejection in the coil]).

otherwise (and for what i think you were asking), the a/c has no effect on the fan (unlike an electrical fan).

the test for a fan clutch are subjective. the fan should spin a bit more when the car is stone cold than when the motor is hot (BUT OFF! LOL). and it should not turn more than a 1/2 rotation when hot and given a 'normal' spin (that is the subjective part).
other signs are silicone leaking out of the fan clutch hub (the silicone is the viscous media which is diverted inside the clutch to control lock up).

good luck Leo.

 

[Boss 351]

My cousins 95 GT had a bad body ground because the guage would move about 1/8" when I played with the lights or the climate control. I fixed the ground and the guage never reads higher than 1/2 now... I know the 95 isn't the same as yours but hey you never...

I'd suggest an electric fan and control unit, 180 thermostat, and an Autometer guage for your car if you have the money. Otherwise check the fan clutch as posted previously. Also check if there is any flow, maybe the water pump isn't working like its supposed to be?

 

[sgarlic]

If it only happens when you sit parked with the engine running for long periods of time, don't sit parked with the engine running for long periods of time.

Or, like Hissin50 said, get an aftermarket gauge and see what you're at, and work from there.

And secondly, isn't this like the 4th new thread you've started about the same issue? Stick to one thread, please.