Question about 1999 Lincoln Navigator

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Navigator leaking coolant - 1999 Lincoln Navigator

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Check you to see that you don't have loose or leaking cooling hoses, a bad radiator cap, a loose radiator drain plug, or a failing water pump.

navigator leaking coolant - da13c37.jpeg

If all these are OK, put a bottle of BAR's radiator stop in the radiator and run the engine in idle for 15 to 30 minutes. Available at your local auto parts store.

If your leak is not to serious, this should fix the problem. Put a bottle of radiator stop leak in your cooling system and repeat the procedure once every six months, to lubricate the water pump and keep leaks sealed.

Posted on May 26, 2010

  • Darryl Payne Sep 25, 2011

    I have a 1999 Lincoln Navigator coolant leak problem. a week ago the heater core was replaced. Big $$. Now only after a week there is still coolant leaking near the rear of the engine somewhere over the transmission. All of the hoses were replaced.

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Posted on Jan 02, 2017

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SOURCE: 2003 navigator green color coolant leak

when you park the vehicle for the night slide a sheet of cardboard underneath. next day open the hood and sight down from a vertical position with the spot and inspect all components on that line of sight. it's not hot so it is alright to use your hands also.

Posted on Apr 27, 2010

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2003 Lincoln Navigator leaking coolant from some sort of drain hole located behind the rear passanger wheel. There is 4 hoses then this hole, where the leak is.


Rear heater core or hoses going to or from it must be leaking? You have to take the cover off the rear heater assembly to fix it on most vehicles. don-ohio (:^)

Jan 27, 2017 | Lincoln Cars & Trucks

1 Answer

Over heating in 2004 lincoln navigator


Are you losing any coolant ? Any leaks , heavy steam out of the exhaust ? Fluid level in radiator or overflow reservoir good ? Can you see the fan/fans running ? If fan/fans not running turn AC on and see if they run then. Could be thermostat not opening completely or water pump going bad. Radiator may be clogging slowing circulation.

Jun 26, 2015 | 2004 Lincoln Navigator

1 Answer

What will make the coolent run out fast 2000 navigator


Leak in the coolant system
Obviously you can see it,if it runs out fast

Jul 15, 2013 | 2000 Lincoln Navigator

1 Answer

I have a 1998 lincoln navigator and steam is coming through the vents and water is coming from under the hood what could this be?


steam from vents and coolant leaking indicated a bad heater core, you will smell the coolant if this is the case.

Nov 03, 2012 | Cars & Trucks

1 Answer

98lincolnnavigatorleak anti freeze by or around transmition


Coolant blows back along the engine so just because it is under the ****** doesn't mean that is where it leaked out. You mist likely have a leaking water pump and it has been forced back by the wind stream under the truck while driving.

Oct 18, 2012 | 1998 Lincoln Navigator

1 Answer

2003 navigator green color coolant leak


when you park the vehicle for the night slide a sheet of cardboard underneath. next day open the hood and sight down from a vertical position with the spot and inspect all components on that line of sight. it's not hot so it is alright to use your hands also.

Apr 27, 2010 | 2003 Lincoln Navigator

1 Answer

I have a coolant leak from one of the tranmission lines at the transmission. is that line hard to change? It is the upper line and looks rusty


You dont have coolant running to the auto trans gearbox so whet it is ,,,is the coolant coming from another place and running down the metal pipe to the g/box as its only trans oil in the g/box.
SO start up the front and radiator where ithe pipe starts and run your finger down the pipe slowly and you will find where it starts getting wet and the leak will be above it somewere....

Oct 02, 2009 | 1998 Lincoln Navigator

2 Answers

My 2003 lincoln navigator is overheating.it is leaking coolant from the back of the truck behind the left rear tire through somekind of drain hole


Spare bottle of antifreeze leaking? or windshild washer bottle leaking? Or rear heater, iff equiped leaking?

Sep 24, 2009 | 2003 Lincoln Navigator

1 Answer

Coolant vapors coming through vents


Sounds to me like a leaking heater core, probably just started. Quite an extensive operation to replace. If you happen to be in a cold climate, the windows will undoubtedly fog up. Hope this helps

May 12, 2009 | 2003 Lincoln Navigator

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