Water in Passenger Footwell - Sorted
The passenger side footwell in my GTV was filling-up with water when it rained but only when the car was facing downhill. Even with a short down pour, it was at least one to two inches deep. Unfortunate, as my driveway is on a slope so, every time it rained, I had to reverse it on so it was facing uphill!
I traced the water ingress to the fan housing under the dashboard. It was running right through the middle of the fan. I'd seen a similar problems on other threads but not with exactly the same symptoms. So, I decided to have a go at fixing it myself - result - Happiness.
If you're experiencing a similar problem, try the following;
Removing the windscreen cover was straightforward, just needing a size T20 Star-type Allen key for the four screws and a slight tug on the three nylon grips located on the top edge. Take care to remove the washer jet tubing that sits in three clips on the underside of the panel.
There is a black plastic blanking plate that sits above the opening to the heater fan intake. It is held in place by two lugs that slot into the lip of the bulkhead and by one of the screws that you will already have removed when taking off the windscreen cover. Over time, I guess with heat and the fact that its cheap plastic, it had distorted and was not locating on the rain channel lip correctly. I refitted it with liberal use of Loctite 595 clearflex silicone adhesive sealant. I also applied a thin bead of this to the bottom edge of the widscreen so that, when the cover was refitted, it would add some further protection. There was also a bit of sticky rubberised pad over a hole just below the windscreen that had perished. This was removed and the hole filled with the sealant too.
While the panel was off, I cleaned it and applied a couple of coats of clear laquer to bring the lustre back again.
The job took no more than forty minutes so recommend you give it a try. ATJ.