Anti Freeze Leak

3rd Expyowner123 · Mar 6, 2023

I have had two leaks, water pump, like other comments in this thread. only drips through weep hole when running and up to temperature, replaced water pump.
Another time I had a leak on a heater hose, smelled coolant, never had puddle under truck. I could see just a little coolant above passenger side turbo. Had both heater hoses replaced.

F150 Pat · Mar 11, 2023

Thank You everybody for your inputs. After driving around a lot before we left and with no leaks at the dealer, I bought more anti freeze just in case and we went on vacation. From Chicago down to Fort Myers. 3 days of 85 and the AC on when we used it. Up the Greenville SC for 4 days then back home. Little over 3K miles. I checked it often. Not a drop leaked from anywhere. Maybe the pressurizing at the Dealer sealed some oRing. Don't know. I'll keep an eye on it and will report back any findings. Sure love the Expedition for traveling.

techdude99 · Mar 15, 2023

Need to add around 2 quarts of distilled water to the resevoir every year. No drips on the floor. Took it to three Ford shops and they didn't find a thing.

ManUpOrShutUp · Mar 16, 2023

techdude99 said:
Need to add around 2 quarts of distilled water to the resevoir every year. No drips on the floor. Took it to three Ford shops and they didn't find a thing.

That's going to throw that 50/50 balance off pretty quickly.

I've never had to add that much to the reservoir, but I have had to add some every year despite not having a drop of leakage (presume evaporation).

Roindhouse · Mar 16, 2023

I have had similar hard to find leaks on other vehicles ,

I use the UV dye with the black light and the special glasses .

Add the dye , drive it around a few minutes and come back and park it’s and wait till dark
You will find the leak for sure with the UV dye and black light after dark.

Anti Freeze Leak

3rd Expyowner123

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techdude99

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