2000 crown vic motor overheating and freezing up after 1/2 hour. New oil, fan, thermostat. water level ok. A/C was on.

Part 1 -How to Test the Starter Motor (Ford 4.6L, 5.4L)

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Mar 2, 2011 - Page 1 of 3: How to test a BAD Starter (Ford 4.6L and 5.4L Pick Up and SUV). ... a BAD starter motor on your 4.6L or 5.4L V8 equipped car, pick up or SUV. ...and will turn over the engine; -OR-; The starter motor won't do a thing. ... Crown Victoria ... 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005.

Question: 1997 Crown Victoria Lx Cant Turn on and Cant ...

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May 26, 2014 - Ok so i put the keys in the car turn the key but seems to me it moves more ... 1997 Ford Crown Victoria • 4.6L V8 RWD Automatic • 99,625 miles ... Keywon't turn off accessories or turn car over and ignition cylinder turns too ...

So many possibilities here... One may be that a wheel bearing is overheating/seizing. Also is the coolent level okay? All fan belts especially to the water pump good? What you need is a good trouble shooting guide because there are just too many possibilities here and too little information. Sorry...

You would need to check the components of the cooling system, such as the thermostat and cooling fan, also things like a blocked exhaust.

your coolant temp sender could be bad. locate the temp sender. this is a 1 wire sensor. the other sensor in the block has 2 wires and starts the cooling fan.

The fan motor resistor is most likely bad. It guages the temperature of the coolant and controls voltage levels to the fan. It acts as a switch, similar to a coolant temp sensor does in the engine. Good luck!

-d-

it's funny to be reading about a similar situation i'm having. i also have a '97 crown vic, bought at a municipal auction.
of course, running the a/c should put more load on the engine and produce more heat. but not enough to be concerned about. if you car seems to be overheating, the thermostat could be to blame.
while diagnosing a different matter, i noticed the coolant temperature at one point reached 217 F. i'm going to replace the thermostat as it may only be opening partialy. my temp gage is normally just above the half way point between the high and low marks. it hasn't gone any further towards the high temp mark to be alarming.
where is the needle pointing on your gage? have you replaced the thermostat?

There is a chance the water it' been burn by the car . It's posible that a internal leak between the Intake manifold gasket or the head gasket going thruogh the combustion chamber.
A good idea will be to perform a radiator pressure test to determine that, also you can have your sparkplugs inspected for signs of an abnormal condition, sometimes they can tell you a lot.

I ~think~ the 1999 is the same as the 2000 (mine is a 2000 P71)

The 2000 CVPI (Crown Vic Police Interceptor) owners manual recommends the following:

Engine Oil - Motorcraft SAE 5W-30 Super Premium Motor Oil 5.0 quarts

Transmission Fluid - Motorcraft Mercon V ATF 13.9 quarts (fluids Mercon & Mercon V are NOT INTERCHANGEABLE, DO NOT MIX)

Fuel Tank - 19.0 gallons

Break Fluid - DOT 3


Rear Axle Lubricant - Motorcraft 80W-90 Premium Rear Axle Lubricant 3.75 pints (add 4 oz of Additive Friction Modifier C8AZ-19B546-A or equilavent meeting Ford Spec. EST-M2C118-A for complete refill of Traction-Lok Rear Axles)

Engine Data - 4.6L V8 Engine
Cubic Inches - 281
Required Fuel - 87 Octane
Firing Order - 1-3-7-2-6-5-4-8
Spark Plug Gap - 1.3-1.4 mm (0.052-0.056 inch)
Ignition System - Coil On Plug
Compression Ratio - 10.0:1

I hope this helps!

Before you get into this involved job I have a few suggestions. First is the pump leaking causing the system to lose coolant. Grab the fan and try to move it from side to side to see if there is play. Next when was the last time the thermostat was changed out. The thermostat can be stuck in a way as to restrict water flow. Another cause of over heating is a clogged radiator. Older cars can have a slug build up in the radiator core causing a significant cooling lose.
Water pumps on a Crown Vic is located on the front of the engine behind the fan. You should really get a service manual as there are a lot of steps in this job that must be done correctly to avoid future problems.
You start by draining the entire cooling system by opening up the drain plug on the bottom of the radiator. This antifreeze must be disposed of properly by taking it to a repair shop for pick up. Next remove the fan guard followed by disconnecting all the belts. Some people remove the radiator to gain working room. before removing the radiator disconnect the lower hose and the upper hose to the engine. The transmission oil cooling lines are next. Now remove all the bolts holding the radiator in place. As you can see this is not a job for a novas. If you are not mechanically inclined this could be a nightmare of a job.

im having the same problem on my 2001 corwn vic pi