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Active leak

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Cruising68

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Ray Charles was never good at identifying leaks

Pic helps.


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GearHead_1

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oil, trans, coolant, refrigerant, brake fluid, air, differentials, exhaust transfer case, vacuum, sunroof or all of the above?
 

OP
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Chelseybelle

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I uploaded pictures
Cruising68 said:
Ray Charles was never good at identifying leaks

Pic helps.


Sent from my iPad using Tapatalk
Click to expand...
in the original post. I’m not sure why they aren’t showing
 

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Cruising68

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Red means transmission fluid. Any leaks up by the tranny or vent tube?


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2020FordRaptor

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Chelseybelle said:
Please help identify the source of the active leak.
Thanks
2020 Ford Explorer XLT 22k miles
Click to expand...
Could be a rear diff leak if it’s locking there. Also is it me or is your rear diff beaten up on the bottom there.
 

UNBROKEN

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That’s an interesting one. Gear oil isn’t red and there’s nothing on the diff cover. It’s almost like it’s something residual that got splashed onto the subframe. I’d clean it off with a few cans of brake cleaner and watch it for a while to see if something returns.
 

UNBROKEN

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Cruising68 said:
Red means transmission fluid. Any leaks up by the tranny or vent tube?


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Click to expand...
That’s the rear subframe. Hard to see trans fluid migrating that far.
 

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Cruising68

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UNBROKEN said:
That’s the rear subframe. Hard to see trans fluid migrating that far.
Click to expand...
I’ve seen trans fluid cover everything to the rear end if the leak is bad. Agree a small leak would not likely make it that far back.


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UNBROKEN

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Cruising68 said:
I’ve seen trans fluid cover everything to the rear end if the leak is bad. Agree a small leak would not likely make it that far back.


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Click to expand...
I have too but everything was covered. This is only on the subframe…not the diff, axles, exhaust or anything else you can see. Migrating that far and only being on the subframe doesn’t seem likely.
 

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Was the bushing recently replaced and lots of lube sprayed on it to get the old one out? Sure looks like red Mobil-1 grease all around the bushing..
 

GearHead_1

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Lifted by the differential, bolt cracked diff cover?
 

UNBROKEN

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Caster said:
Was the bushing recently replaced and lots of lube sprayed on it to get the old one out? Sure looks like red Mobil-1 grease all around the bushing..
Click to expand...
I does look more greasy than oily.
 

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Redline gear oil is Red. Do you have leaking around the half shaft?
 

UNBROKEN

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Redline turns brown with use.
I’m wondering if the OP didn’t have the diff bolt recall done and this is residual stuff from that.
 

BrooseDaMoose

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UNBROKEN said:
Redline turns brown with use.
I’m wondering if the OP didn’t have the diff bolt recall done and this is residual stuff from that.
Click to expand...
I agree. From the looks of the bolt, it's been removed. I bet they put some kind of red grease on the bushing before installing it and that's what it is from. You can see it along the edge of the bushing to the left of the drip.
 

jwuonog

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Spray it with some brake cleaner or degreaser and see if it returns. It looks like Mercon ULV (trans fluid) but I have no idea how it would end up all the way back there. Maybe you ran over a bottle of trans fluid somewhere?
 

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