[slowbrick]

So while Im doing the harmonic dampener this weekend I might as well solve this slow coolant leak I have on the driver's side. Ive examined the radiator and there are no cracks. Im going to replace the coolant reservoir as the float works erratically there. Where else could the leak be coming from? I know its the driver's side as occasionally there is water there in the morning in the area of the power steering reservoir just in front of the tire. I know there is an trans oil cooler line there and I believe the trans oil cooler runs both oil and coolant through two separate channels.

Anyone have thoughts or advice where to start? I know its not the double inlet on the head on the driver's side. Ive replaced that in the past. Just looking for any advice to narrow down the time involved.

[lnxguy]

Coolant flange under the manifold.

[slowbrick]

Replaced that flange a few years ago. The dual inlet one Im assuming is what you're talking about?

[lnxguy]

That's the one. Did you replace it with an OE unit? If that's not it, time to break out the pressure tester

[slowbrick]

Yep, with OE unit about 3 years ago.

Guess its pressure tester time. I really think it the oil cooler connected to the fan shroud. Its still the OE line from 2011 and I replaced that unit in 2020. Probably should have changed the o-ring while I had it apart, uggghhh.

See what I can come up with pressure testing.

[lnxguy]

Goodluck!