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Something leaking when AC is on..not just condensation

pup5581

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'14 Explorer Sport
Something is leaking underneath my truck when ac on. The water puddle has a oil look to it and smeels a bit..but not like oil. I can see under the truck where something has definatly been leaking and onto the Cats and exhaust causing a smell when truck gets warm. Smell is outside and in when say stopped at a light..whatever leaked seems to he buring off the cats when they heat up causing the smell covered in this black leaks

Dealer replaced my PTU 3 weeks ago? It started about 2 weeks ago this smell and the leak i noticed.
 



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chefduane

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What color is it? Power steering fluid maybe? But it only leaks when the A/C is on? Is the A/C performing ok? Hmmm. Not antifreeze dripping out of the reservoir?
 






182RG

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What color is it? Power steering fluid maybe? But it only leaks when the A/C is on? Is the A/C performing ok? Hmmm. Not antifreeze dripping out of the reservoir?

No power steering fluid on 2011+ Explorers. The system is electromechanical.

It could be trans fluid leaking after the PTU swap. Take it back.
 






JerryC

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Put a white paper towel in the fluid, if it has any color it will show up.
 






peterk9

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Something is leaking underneath my truck when ac on. The water puddle has a oil look to it and smeels a bit..but not like oil. I can see under the truck where something has definatly been leaking and onto the Cats and exhaust causing a smell when truck gets warm. Smell is outside and in when say stopped at a light..whatever leaked seems to he buring off the cats when they heat up causing the smell covered in this black leaks

Dealer replaced my PTU 3 weeks ago? It started about 2 weeks ago this smell and the leak i noticed.
I was going to say PTU fluid from a leaking seal.

Peter
 






pup5581

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I was going to say PTU fluid from a leaking seal.

Peter

I brought it back to dealer right from work..gave me a loaner..but i brought it so late in day..won't get looked at till tomorrow
 






pup5581

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Update: No leak as they said it was from them replacing the PTU.... but still a strange smell when sitting in traffic with the AC/heat on. When moving you don't smell it. Smells like coolant or something like that. They couldn't find whatever it is
 






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