Question about 2000 Ford Expedition

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Coolant leak For the past week I have smelt antifreeze inside my truck, then the windshield started foggin over. I noticed I have antifreeze leaking on passenger side of truck ( right on other side of tire)I know heater core is on left side, what else could it be?

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You have all the classic symptoms of a leaking heater core. Not sure why you believe it to be on the left side of the truck but it isnt. It's on the passenger side.

Posted on Oct 18, 2013

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  • Lori Caldwell
    Lori Caldwell Oct 18, 2013

    I looked it up online. It said my heater core is right behind my gage panel and steering wheel. I have heat and my temp gage is normal.

  • cy schousboe Oct 18, 2013

    I did some double checking after your response and here is 2 videos you need to watch on youtube. The heater core is lo0cated on the passenger side but the removal job is extensive. On youtube type in 7_hour_ford_heatercore_0001.wmv. After that type in Ford Expeditionh heatercore replacement. If you are wanting to do the job yourself these 2 videos are almost manditory. A leaking heater wouldn't necessarily interfere with your heating or engine temp until the coolant level dropped significantly. If your heater is blowing cold air it will take at least a gallon of coolant.

  • Lori Caldwell
    Lori Caldwell Oct 22, 2013

    Thank you so much :-)

  • Lori Caldwell
    Lori Caldwell Oct 22, 2013

    Before i purchase the heater core would it be wise to maybe have a pressure test done? Just to make sure lol


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Will be the heater core, everyone I have ever seen is on the passenger side.not anything else to do it.fogging windshield,definately.

Posted on Oct 18, 2013

  • cy schousboe Oct 22, 2013

    You can if you like, it won't hurt. You can get it checked at most corner garages and probably some auto parts stores for little or no charge. When you are done changing it and everything is back together, leave the rad cap loose on the first notch and the heater on full blast for a couple days while you drive around. Keep topping up the rad and after a day or two the coolant level will stop going down. Then fill the rad and close the cap tightand top the overflow bucket to it's range. This will get rid of any "air locks" in the system.

  • shannon floyd Apr 11, 2014

    trust us, will be heater core on passenger side.



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Posted on Jan 02, 2017

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SOURCE: coolant leak leaking on front passenger side near wheel well almost under the engine

check all your hoses run vehicle for awhile the inspect hose in this area. look for obvious things next check at the engine to see if a freeze plug is leaking then inspect you heater assembly the core may be leaking I'm leaning toward a hose or shut off valve

Posted on Jul 04, 2012

  • 1 Answer

SOURCE: windshield washer fluid hose is leaking behind front right wheel

I had the same problem. Reservoir would drain for no reason and I later found that the water was soaking the passenger side carpet and filling the wire channel under the doors. Tracked the problem to a barbed fitting behind the passenger side kick panel, just below the dash. The fitting connects the tubing coming through the firewall from the reservoir to the rear wiper/washer. The hose had come loose from the fitting (possibly due to freezing). I re-installed the tubing onto the the fitting and it has been fine ever since.

Posted on Feb 21, 2009

  • 92 Answers

SOURCE: my 2000 ford f 150 is leaking antifreeze

This does sound like a heater core. To by pass it and be able to useyour truck, pull the two heater hoses off there stubs at the firewall (where they connect to the heater assy) and connect them together with the proper size barbed hose coupling and a couple of hose clamps. Now you need to replace your core and clean up the mess the anti freeze is making. If you Plan on doing this your self make sure you have a decent repair manual on hand for your truck.

Posted on Aug 09, 2009

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