Replace your thermostat and check the waterpump. The ac "pulls" heat out of the air in the car thereby making it cooler, at the expense of making your coolant heat up even quicker than normal. Try this to see what's going on.. Open the radiator cap, start the engine and wait until the car gets up to operating temperature. You should be able to see the water circulating through the radiator...if the fan comes on, and the water isn't moving, then replace the thermostat. If it still isn't moving after that, the water pump may be no good. Id bet on the thermostat. They're cheap and need to be replaced every so often. If the water is circulating and the fan never turns on, then you check the fan motor, relay, etc. There is also a temperature sensor located somewhere next to the thermostat. It's rare to have to replace that, but if it's faulty, then the fan won't turn on and thus overheating occurs. I am assuming here that if you drove your car up a hill without the ac on, it will overheat or get hotter than normal...So....go test your circulation first and let me know what you find. Oh yeah, when you do the circulation test, turn your heater in the car on full blast too...does it get hot inside the car?
SOURCE: 2000 Lincoln ls overheating
There is a hose on the side of the coolant resevoir that has a straight blade screwdriver fitting in it. Open the fitting and this will bleed the heads on the LS. Without opening this you will never get the air out of the head, trust me.
SOURCE: 2002 LINCOLN LS V6 3.0 PCV VALVE LOCATION
it is down under the intake manifold. the intake manifold must be removed to get to it. this vehicle is known for developing a vacum leak in the elbow hose that connects to pcv valve, so ive done a few.
SOURCE: air conditioning recharge
look back towards the firewall in the low side AC line, that is the larger of the 2 lines, the charging port is in that low side line.
SOURCE: 2001 LINCOLN LS V6 - ROUGH IDLE / SOMETIMES STALLING.
Very common problem is about a dime size hole wearing in the rubber elbow on the PCV valve located on the driver side rear of the intake manifold.
SOURCE: how do i change spark plugs on a 2001 lincoln ls
easier said than done.
driver side is staight forward.
remove coil packs from blugs, then remove plugs.
passenger side needs intake removed to gain access to plugs
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Thanks Grant we ordered a new fan/assembly part # rf-226 same problem I will try the circulation test they want us to order the hydraulic pump assembly? we also changed
the thermostat,and by the way the ac works for awhile but on real hot days like today
it do's not take very long before the car overheats you shut the ac off and everything
is back to normal any suggestions would be great.
thanks
Giancarlo.
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