Question about 2000 Lincoln Navigator

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Continuous overheating 2000 lincoln navigator replace water pump already

Replaced thermostat, replaced fan clutch and replaced water pump.. car still overheats

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  • hiz_herz6ix
    hiz_herz6ix Jan 06, 2013

    its still overheats after replacing waterpump, thermostat and fan clutch. could there be antoher problem?



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  • Lincoln Master
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Try this procedure:

  • The thermostat can be stuck close. If you feel the upper hose very hot and the lower hose cooler than normal, it may be a stuck thermostat.

  • Make sure the radiator and the overflow bottle are filled to the proper levels.

  • Bleed air from the coolant system:This is best done by running the engine with the radiator cap off until you see when the air bubbles stop coming up.

  • Check the radiator fans: The easiest way is to turn on the cars air conditioner and turn up the A/C fans. Both radiator fans should come on when the A/C starts

  • Make a pressure test by using a pressure testing tool (available at most auto parts stores). Use the pressure shown on your radiator cap. Most cars are 16 PSI or less, so don't exceed that pressure. Replace the radiator cap if it doesn't hold the pressure.

Posted on Apr 25, 2015

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  • Contributor
  • 14 Answers

Have you tried to flush the system. if so you still my have be thermostat. you can check it in a pod of water with a cooking thermometer and it should at 185f of 195f depending which one u have. Brand name Stant thermostats r good. hope that helps.

Posted on Jan 05, 2013


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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.

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SOURCE: My 2000 Lincoln LS V8 is overheating.

Sometimes a vacuum leak can cause the engine to run lean and hot, Have Auto Zone run a free code check on the car to search for a stored trouble codes this may help.

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SOURCE: suspect hydraulic driven main cooling fan not

the fan speed could be one problem...the other problem could be wth the radiatr cores being blocked..check whether the heat on your radiator is even front top to bottom and on all sides...if it is not, clean the radiator and check for the problem

Posted on Aug 15, 2009

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SOURCE: 2000 lincoln ls 3.9 overheating

Do a radiator pressure test, tools can be purchased at the local auto parts store. It may be that tyou have a blown headgasket and it builds an airpocket below the thermostat and will insulate it and not allow it to open. Another way to test is to take off thermostat housing and pull thermostat and start engine but do not rev it up. Water must be to top of housing... In some cases if air bubbles appear it will mean blown head gasket... The problem with this is it may only happen when engine is at operating temperature. Car can be driven and warmed up in first method, pressure will always rise but if it rises quickly it would be head gasket.

Posted on Aug 27, 2009

  • 1 Answer

SOURCE: overheating

I just bought a 2000 Lincoln ls V8 3.9L, i've had it for couple of days.I took a drive in it the other day, and noticed the car was overheating. Replaced thermostat, and water pump. Car is still overheating, I need some help?

Posted on Dec 26, 2009

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