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Discussion Starter #1 (Edited)
Today was 100 degrees and very humid. The drive home from work was 25 miles and took a little over an hour with the ac blasting the whole way. I ran into moderate traffic the last 20 minutes and crept along at lower speeds. When I got off the highway on the ramp, water literally poured out from under the dash and into my boot and all over the floor. Passenger rubber floor mat had water on it too but the insulation on the plastic underdash panel was dry. Anyone had this happen?

Some background...radiator, water pump, t-stat, & heater core replaced within last 3,000 miles. Ac compressor, receiver drier, condenser, & lines done about 1,200 miles ago last year. At that time I also installed a 16” ac drip hose with a clamp that does not seem clogged at all since it pours water from the bottom of the hose at idle.
 

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It's Not Just You

I'm interested too in replies. in my black car under very infrequent conditions I'll make a hard right and get a little splash on my foot. I thought it would be plugged drain elbow, but plenty of puddle right under it when I park.
 

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Discussion Starter #3
I found my ac drip hose clogged with dirt after roughly 20 hours of total ac use. Also, pulled the lower dash and found a hairline crack in the bottom of the blower motor case about 2” to the right of where the radio sits. Hopefully with the drain clear, no more dripping.
 

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There is/was a thread on this forum about cowl leaks, in B bodies. The factory seam sealer fails and causes rain water to drip into the front foot-wells.
 

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I never had water over on the driver's side of the car, but when I first got my current ride I found that the area around the A/C evaporator core & Heater Core had some debris and leaves in it.

This was blocking the drain at the bottom of the plastic cover, and it was filling with water, and then at the seam where the upper & lower pieces come together the water was running out on the passenger's side floor.

Did you have any recent rain where the cowl area seam sealer may be a problem as Mikeceli wrote?

Have you looked to see if the elbow for the A/C drain is working?

Have you checked the passenger's side area for water?

Have you examined the plastic cover for the A/C evaporator core & heater core for water?

I can't logically see how A/C condensation water would get all the way over to the driver's side, as everything is on the passenger's side. I would be leaning toward a firewall/cowl area problem. You'll prob. have to pull the plastic covers under the wiper arms and take a good look. Possibly add some hose water and see what happens.

Let us know what ya find.
 

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Discussion Starter #6
There is/was a thread on this forum about cowl leaks, in B bodies. The factory seam sealer fails and causes rain water to drip into the front foot-wells.
Sunny and no rain. This was most Definatley coming from the heater box and dripping out under the center of the dash.
 

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Discussion Starter #7
juniorwatson, no rain at all. Ac drip elbow was there as well as the 16” hose extension that was clogged with mud.

It seems the box filled with water and when making right turns quickly, it was splashing towards driver side.

After an hour in traffic with it blowing cold on high, I exited the highway and that’s when enough cold water hit my boot and completely soaked my sock.

No water dripping today but didn’t have ac on more than the low setting for 45 minutes.
 
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