[COLVERT]

As post above.--I parked on a slope outside a friends house a couple of days ago.--I returned to see a large puddle forming under my car.---

Water was also dripping down off the bodywork. I caught some on a piece of cardboard. It was clear and had no smell. PLENUM ???

I tried rodding the outlet through the hole I'd drilled a couple of years ago. Not much success as it seemed to be almost blocked solid.--
Out with the tool kit and a removal of all the plastic trim above the plenum including the the wiper arms to give access to just about everything.
LOTS of sludge and bits of old pine needles.

Luckily I have a good/powerful wet vac.---It took that and a few bottles of water to wash all the sludge to the outlet to be rodded out.

Judging by the water level mark on the air filter the water had stopped just below the ECU.--A very narrow escape.

Now go read the post above mine and get cracking.--As they say---A stitch in time saves nine.