Question about 2002 Lincoln LS
My '02 Lincoln LS has about 65,000 miles. Last year it started overheating. The engine would start to whine, the temp gauge would get to H and the message light would beep to ''check engine temp''. Took it to the dealer and they replaced the cooling fan. A few months later it started overheating again. This time they replaced the thermostat. A little while after that it started overheating again. They again replaced the fan. Now, 10 months later, it is overheating again. Took it back to the dealer and they again replaced the thermostat. On the way home from the dealer last night the car started to get hot again. Temperature gauge got 3/4 of the way to H, engine started to whine, then it corrected itself and the temp needle lowered back to 1/2 way between C and H. This morning on the way to work, same thing. This is costing me a fortune to keep ''fixing'' things that are not solving the problem. What can be the problem? Please HELP.
The cooling fan on the LS-V8 is hydraulic yes. But it also has a pressure switch on the pump that drives the fan. It is controlled by the temperature sensor. All these things must be taken into account. But the whining sound my lead me to believe that the pump is either low on fluid or is wearing out. The fluid the fan pump uses is the same as the power steering pump container so check it first. The same thing happened to my wife's Lincoln. I replaced the fan as well because everybody told me to do that but it didn't work. I found out that the fan is just a hydraulic motor in reverse it only spins as fast as the pump makes it spin and that is controlled by the temp. sensors. When the engine get's hotter the pressure goes up and the fan spins faster. This adds more power to the engine when it's running cooler because the fan doesn't have to spin at max speed. So good luck. I hope this has solved your problem.
Posted on Dec 12, 2009
From what you have said it almost sounds like a bad drive belt, drivebelt tensioner or water pump problem, here are some check's that might help,
Posted on Apr 01, 2009
Your dealer is incompetent. The radiator cooling fan from 2000-2002 is not electric, it is powered by a hydraulic motor which is connected to a hydraulic pump on the engine which in turn is driven by the engine accessory drive belt. Most likely the pump or pump actuator has failed.
Posted on Jul 24, 2009
I had the same problem but fixed it 6 months ago finally by replacing the power steering pump! The power steering pump must be strong enough to push the power steering fluid through the hydraulic pump that power the fan that cools down the car while the car is sitting still. Be sure to check the power steering fluid often because it burns out about every six months because it is being used by 2 systems! (the power steering system and the hydraulic fan system! This should definitely fix your problem. The whinning you are hearing from the engine is the power steering pump is dry and out of power steering fluid! This could damage the power steering pump! So first just add power steering fluid and if it continues to run hot then your power steering pump is already damaged and need replacing! It amazed me that something this simple and all these mechanics couldnt figure it out! They suck!
Posted on May 16, 2013
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Posted on Jan 02, 2017
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