Overheating and more...

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Pauls dropped 8

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lately, i cant drive for more than 10 minutes without the car overheating on me (according to the temp guage). this has never happened before. it doesnt get to the point where the car dies but it rests in the red area on the temp guage, drops down to the N, then bounces back up to the red. ive also been noticing a noise whenever i shut down the car, like a metalic sound spinning that my dad seems to think is either a bearing for the alternator or the water pump going bad. id say the water pump would the the obvious choice between the 2 but my lights have been dimming so badly since ive been hearing this noise its hard to say. im thinking its a couple of things happening at once but im not sure. some people have suggested the thermostat too. lemme know your opinions guys.
 
RE: Overheating and more...

My car was making a metallic spinning noise before my fan went out. When it finally did go out, the car would overheat in about 10 minutes if I wasn't cruising on the highway. Next time it overheats, make sure the fan is on.
 
RE: Overheating and more...

To check the fan before the car gets hot, turn on the A/C which will automatically turn on the fan no matter what the temp is.
 
RE: Overheating and more...

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... ive also been noticing a noise whenever i shut down the car, like a metalic sound spinning that my dad seems to think is either a bearing for the alternator or the water pump going bad. id say the water pump would the the obvious choice between the 2 but my lights have been dimming so badly since ive been hearing this noise its hard to say.
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I would start by pulling the belt off and turning the water pump and alternator by hand. It could be the pump bearings causing the belt to drag and slow the alternator. Then again, if it was the cooling fan, it could be causing electrical drains that cause the lights to dim as well.

FWIW, when I installed the cooling fan override, I tested the fan turn on speed to be 215 degrees! If it doesn't come on, it's going to overheat rather soon at those temps. BTW, the fan shuts off at 205 degrees. This is of course with the AC off since the fan will operate in variable speed mode with the AC on. Also, keep in mind the AC is actually ON in all positions except OFF, VENT and FLOOR.
 
RE: Overheating and more...

im guessing its the fan guys. i replaced the water pump today and shredded the belt in the process. before the belt went bye bye, we turned on the AC to see if the fan would start up, which it didnt. i had jerry program the computer so that the fan would either be on at all times or come on sooner, cant remember which. im guessing i just burned the motor out. anyone know how much this stuff (belt, motor) is gonna run me?
 
RE: Overheating and more...

You can pick up a belt for like $20, or a newer style for like $30.

Ford Parts Network lists the cooling fan motor for $350! :eek: RockAuto lists the MotorCraft brand for $225 and ACDelco for $134.
 
RE: Overheating and more...

Wow, they are damn proud of that sucker. You may look into just getting the motor itself, may save you a few $$$$.
 
RE: Overheating and more...

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Wow, they are damn proud of that sucker. You may look into just getting the motor itself, may save you a few $$$$.
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I believe that is just the motor!
 
RE: Overheating and more...

ok, just got the new fan belt in and secured. the fan still doesnt work and now the ac compressor isnt kicking on. my dad thinks the clutch may be out and was wondering if the compressor and clutch are a separate unit. also, with the fan, i can get a motor for like $50 at auto zone. im wondering if theres a reason to get a whole new assembly and pay more than triple than what the motor costs.
 
RE: Overheating and more...

Rig up 12 volts to the fan and see if it comes on. If it does not, all you need is to R&R the fan motor. The fan assembly is easy enough to pull out and then the fan and motor separate from the shroud assembly with the removal of four flange head mounting bolts. From there you should be able to figure out how to separate the fan blade and motor and replace the motor only.
 
RE: Overheating and more...

When I replaced my fan, the motor was not bolted in, but riveted in. I had to grind off the rivet heads with an angle grinder.
 
RE: Overheating and more...

Get a fan that origionally came off of a mark VIII. The origional fan is secured with 3 big rivits to the shroud. YOu must drill the head of the rivit out enough and they will pop right out. Then you can secure the old motor to the shroud. To do this use 3 small 5/16" bolts and nuts with lock washers, or nylocks. Shpould take an hour to compelte the swap.
 
RE: Overheating and more...

anyone able to answer my question about the ac compressor? since it wasnt turning on last time we tried, we're wondering if the clutch can be replaced by itself or if the whole unit needs replacing, or if its even broken at all. air is coming out of the vents, but its not cool air. also, has anyone tried a fan from summit or any other performance oriented fan?

also, with winter aproaching, will this effect the heater as well or are they separate?
 
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