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Hmm, perhaps. I know the newer, full-size trucks have some sort of valve or bypass, but I don’t think these Sigma platform Cadillacs do.

Interesting. Maybe it just had more water in the vent hose from some prior event and it made its way in? It’s just odd to me that it’s only at the top of the inside of the case on one side but not the other. I suppose I could pop the pan on, put a rag over the end of the hose where it terminates...

I cleaned the pan thoroughly and flushed 18qts of new fluid through. No other signs of water during the flush. Drove 100 miles over a two day period with totally dry roads and dropped the pan. Found water again and took the pictures. Removed the TEHCM and valve body for a better view of the...

Nope, and the SRX has a stand alone trans cooler. Another data point, the vent hose on the 6L50 is on the passenger side of the case. My water intrusion appears to be on the drivers side only.

I wish it was that easy, but unfortunately I already ruled that one out.

Hey folks. First time poster here with a baffling issue. A little background… I have a 2007 Cadillac SRX (V8, AWD), which has a 6L50. I’ve owned it since 2015 and from about 60k up to its current 170k miles. I drive it hard, but I’ve always maintained it above and beyond what’s required. Trans...