Could also be intake gasket, mine did the exact same thing and thats what it was.

 

By the sound of it. Your getting water in where it should not be. The filter is right above where the cowl is. I bet the pressure from the car wash is pushing water through there and slowly being suck in through your filter. The reason why the filter could be dry is that blower thing it's attached too is drying it.

 

You need more airflow to draw across the filter to dry it faster. Bigger Procharger should solve this. Tell your wife.

 

LOL - that might actually work now. I don't know if I mentioned it or not before but I had to sell her on the magnacharger on the 03 denali as being required for "towing purposes" which is not a complete lie, really....

Anyways, after 7 years of this being her daily driver, after a couple of trips around the block with the 07 denali, she was like "this thing feels gutless, it needs a supercharger, I have some money to put towards it".

I just about keeled over from the shock.....in a good way of course.

 

That is what I thought too, so I have never taken the vehicle back to a drive through car wash since. I was just using a wand wash but that still does not mean that water could not have gotten under the hood still and sucked into the air intake as you are suggesting.

 

Again, pardon my lack of engine knowledge, but do you mean air intake gasket? Or manifold intake gasket?

 

Sure. As far as I know (being the second owner and bought from a dealer so he did not know everything done to vehicle):

Procharger
3000 Yank stall converter
Headers
exhaust
Tune by Nelson (thanks again Allen!)
Snow meth kit (thanks again Allen!)

that is about what I know about as far as go fast mods...

 

Sounds like a wet filter to me also..
Take a pic of the engne bay so we can get a better idea of where its at???

 

Ok looking at the pic from the older thread id say you have a wet filter..Check the to make sure the seal/gasket is still in place below the wiper to seal the hood to the cowl..
K&N/afe make a slip on cover to block water on cone filters..

https://www.performancetrucks.net/fo...gmtruck-lg-jpg

 

ok, that is the seal referred to above. I get it now. I was thinking about a filter sock on the way home as well. My real preference would be to move the air intake to some other location, but the snow meth kit is on the left side where the air intake would go.

I called up Onstar this morning to see if they had the codes from last night's episode, but sadly they did not. I had them run a diagnostic today, and nothing came back, even though the truck was still hesitating on the way to work. The check engine light never did come on today.

I am happy to report that after a day in a 75 degree parking garage, the Escalade was back to normal on the way home. But I don't want to be walking on eggshells every time I go wash it either, so will try and implement all of the good advice that everyone has provided to me. Thanks again everyone!