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A/C condesate not draining properly 200 1985

First off, the black drain hose is clear as a whistle.

The weird part is it only does it after the A/C has been cranked up for a while. Then I'll come to a stop sign and take off to the tune of 4k RPMS and I hear the fan blades spew water and sometimes feel some drops shoot out. I looked at it today after it had done this and it sure looks like water was filling up the blower box. Once I played with (like pumped) that black drain tube, a whole bunch of water came out the bottom of the car. I noticed that it gets pretty hot where the hose pops through the tranny tunnel and thought that the end might be closing somehow and I reopen it by creating pressure. Hopefully I am right but what else might it be? This all started shortly after I changed the blower but how could I get anything into the airbox to clog it? Aren't there coils in the way?








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A/C condesate not draining properly 200 1985

Ok, you cleaned the black hose, right?

The system is pretty simple. Condensate forms on the evaporator coil fins, drips down to the bottom of the blower box, drains through said black hose and drips on top of the transmission.

The hose is always the first to check. Changing the blower motor might jar loose something. Can you put an "S" shaped wire or something up through the tube where the black hose fits on? Make a little 90 degree thing on the end and see if you can poke it up there and turn it. I visualize a straightened out large paperclip being a candidate for this.

The black tube clogs easily, and the way they made the outlet end tends to make things worse, especially here in Humid Houston. I have had to take off the hose and clean it like one would clean a 410 shotgun - pushing a sloppy wet paper towel through it until they come through clean. The I cut the bottom end to remove part of the little flap thing there.

That's the gamut of what I have to help.

Good Luck,

Bob

:>)








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