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AC evaporator coil cleaning / water on floor


hdtvluvr's Avatar
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Join Date: Dec 2004
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05-01-05, 11:48 AM   #1  
AC evaporator coil cleaning / water on floor

How difficult is is to clean an evaporator coil in a truck? Is there a cover that is easily visible that can be removed?

When running the AC, I do not have condensate dripping under the car. It actually wets the floor of the truck. There is a small (1/2 in dia. X 1 in long) tube coming out of the firewall. It does not have a hose attached in the engine compartment. Is this tube a part of the AC housing or is it connected to a hose inside the truck? I've inserted a wire approx. 5 inches inside (until I felt a solid resistance) and water still doesn't come out.

I was thinking that the evaporator may be partially blocked and not allowing the water to drain. Is this possible?

 
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05-01-05, 01:11 PM   #2  
Take a piece of coat hanger and bend a small hook in it. Use it to pull out whats clogging the drain. The junk clogging it is either in the tube or where it starts in the evap box.

 
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05-01-05, 01:57 PM   #3  
Thanks for responding so quickly. I went back and tried again. I inserted a wire (with hook) 11 inches into the tube. I was unable to hook anything and remove it. Is there a easy way to do this from inside the truck?

I retested the AC and it still doesn't drip from the tube.

 
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05-01-05, 02:05 PM   #4  
If you can adapt a shop vac and suck it out

 
hdtvluvr's Avatar
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05-01-05, 02:14 PM   #5  
I don't have a shop vac. Anything else I can try?

 
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05-01-05, 02:15 PM   #6  
I don't have a shop vac. The vac I use in my shop can't handle liquids and I guess there is a chance that some water will come out with the blockage if the blockage does come out.

Anything else I can try?

 
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