I've been reading lots of threads on this issue, but I've been unable to determine where all the water is coming from. It's ONLY in the footwell - not behind the seat, and not up the center hump. It doesn't even go all the way up the firewall. It's just sitting in a pool under the footwell. I actually removed the passenger seat today and used a towel to sop up as much of the water as I could. Of course, it rained just after I did that, so I shot the doors and went inside.

After it stopped, I went to check on it and, sure enough, the footwell was flooded again. I once again cleaned it up, and then got out the hose and just started soaking the passenger side of the windshield/A-pillar, and after about 5 minutes of that with no results, I tried soaking the third light, again with no results.

As I left the truck in the driveway (I didn't drive it while it was raining), I'm now stumped. Is there anywhere else I can point the hose to see where all this water could be coming from? As others had stated, I can't say I'm planning on keeping this truck forever, however, while I do have it I don't want it rusting any more quickly than it already is (I live in North East Missouri -- it's going to happen whether I like it or not).

Thanks for your ideas!

 

Perhaps what you need to do is use a sprinkler to simulate the rain rather than just spraying it with a hose. I know when we are trying to find water leaks in houses (around windows and doors) this method seems to work a little better, sometimes.

Just a thought---Good luck.

 

do you have a sunroof? try checking the drain tubes

 

It could be the drain tube of the ac that is plugged. Mine was damp as well and it hasnt rained in a while.

 

No sunroof, thankfully. Where do I check the AC drain tube? I didn't see anything obvious...

 

when my ac runs for a long time it drips in the floor some. annoying. check the sunroof drains too

 

there is a tsb on fixing the ac drain so that the water doesn't roll back into the cab.

 

I am reasonably sure I found the issue -- the AC drain. Thing is, I have no idea how to 'clean it out' without pulling the entire assembly apart, and I don't want to do that!



It appears that the water is backing up, and eventually making its way through the foam gasket. I just don't know how to get in there to clean it out... If this is something that could be covered 100% by Ford (TSB/etc?), I'd probably much rather have them do it...

If it's to be stupidly expensive to have a dealer fix, could I take my dremel and cut out a small section on the bottom of the tunnel (between the two foam bits), clean it out, then plastic-weld/silicone the piece I cut out back in place? My only other option (that I see) for self repair is to try to stick a screw driver in the tiny drain tube on the firewall, but I'll have to wait for the truck to cool down so I down burn the snot out of my hand/arm..

 

AC Drain .... TSB 07-13-5.

Hope it helps.

 

you clean it out from the engine side of the firewall, and then add the rubber PCV elbow to it to prevent drain back

its located on the firewall behind the passenger head

 

Does this have any effect on the AC cooling process??? I know on housing units when a unit freezes up it does cool as efficient. Srry if Dumb question.

 

not really, its just a water draining issue.

I guess in theory you could have enough clogged drains that the whole AC box fills up with water, thus reducing air flow across the evaporator, but that would mean the whole AC box would have to be water tight (which it isnt)