Need help

[murdamami]

So I have antifreeze pooling with coil packs on passenger side the hoses don't look to be leaking and I don't see the seam of the intake manifold wet it's slightly mixed in the oil neck and on cap but not on the dip stick what can I be there's no misfire no check engine light driving perfectly fine any ideas can the intake manifold have the coolant mixing with oil

 

[Hamfisted]

You can say the year of your vehicle, so people don't have to go hunting for it.
Get yourself a cooling system pressure test kit and pressure test the system and look around the area with a bright flashlight to find the leak when it's under pressure.


Coolant System Pressure Test Kit on Amazon






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[murdamami]

Sorry it's a 06 expedition xlt sport 5.4l

 

[Frank Wilson]

So I have antifreeze pooling with coil packs on passenger side the hoses don't look to be leaking and I don't see the seam of the intake manifold wet it's slightly mixed in the oil neck and on cap but not on the dip stick what can I be there's no misfire no check engine light driving perfectly fine any ideas can the intake manifold have the coolant mixing with oil

 

[murdamami]

So it's the coolant tube thing that the t connects to the metal tube is rotted and has a hole cross over pipe I believe the thermostat is housed in 1 end of it metal tube on the other end thanks

 

[Gary Waugh]

On my expedition (08) it was the plastic T piece that you are ppinyin g at, when the engine started and the coolant got hot, the T piece would leak and coolant dropped into the top of the engine. I replaced the T piece, it comes from ford with the 3 hoses attached, 2 hoses have quick disconnect fittings and the third goes to the bulk head and uses a screw clamp (we call them jubilee clamps in England). It was quite easy to fix, took about an hour to remove the old hoses, fit the new hoses, add coolant and then check for no leaks. I know other people have just cut the T piece out and then fitted a barbed T piece with clamps (a lot cheaper but I went with the ford part less than a hundred bucks). Several people have had that T piece fail, so it’s a known weakness.