Smell it but can't find it.
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Mountain Pass
Joined: Mar 2004
Posts: 127
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Smell it but can't find it.
I can smell coolant every time I get out of my Exp but have not been able to find the leak. I have been smelling it for about 3 months now, but have only lost about a gallon or so of coolant. Is there a common problem with these trucks that can cause this? I have had leaks before (not in this truck though) but have never had one that I couldn't track down, and never one that leaked this slowly.
Any help would be greatly apprecaited
Any help would be greatly apprecaited
Fleet Owner
Joined: Apr 2008
Posts: 24,319
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From: 0,0,1
That and the other place to look is the bottom of the water pump. Under the pump is a weep hole where coolant can leak past the pump shaft seal and out, it does it mostly just during the first engine warm-up of the day. After that, the bulk of the pressure in the system is gone, then there isn't as much PSI to force the coolant out of the weep hole.
Senior User
Joined: Feb 2004
Posts: 317
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From: Omaha, Nebraska USA
At that milage I would also say water pump also, but there is a hose that runs in the valley under the intake manifold. These have been reported to leak from time to time. It ma be worth a look. The antifreez stays in the valey area.
Senior User
Joined: Sep 2009
Posts: 263
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My guess would be the water pump, but if you still can't find the leak you can always use some dye and a blacklight to pinpoint the leak. I have used it many times and it works great, you can buy the blacklight and special glasses off of Ebay for $15.
