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Water Leak?

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Old Mar 20, 2008 | 10:11 PM
  #1  
TruckoffFord's Avatar
TruckoffFord
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Water Leak?

I have a 99 F250 4x4 SD 320K that is loosing water. I could find no water leak; so, I took it to a Ford dealer and they have been unable to find a leak. It was pressure tested hot and cold.
I have added water to the resevior several time. I know there is a problem.
One doesn't go for months without putting water in to all the sudden adding water several times in a few days. When I first noticed it, the reservior bottle was half empty ( or half full if you want to be optimistic about it).
There is no water in the oil.
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Old Mar 21, 2008 | 06:25 AM
  #2  
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Keep an eye on your dipstick to make sure your oil doesn't start getting fuller. If I had to take a wild guess, I'd say your water pump may be on it's way out. You can develop a small leak at the water pump that mostly drips on the road while driving, but a hot engine helps evaporate the water so there's no puddles in the driveway.

You can try starting it up cold, revving the motor a few times, shutting it off before it's warm and then crawl under the truck or use an inspection mirror and check for any signs of water around the pump.
 
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Old Mar 21, 2008 | 07:26 AM
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Thanks, I'll give it a try.
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Old Mar 21, 2008 | 11:39 AM
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also look real close at the flange where your upper hose comes into the water pump that is where mine started leaking changed it for like $30 from napa
 
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