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Ron, ASE Certified Technician
Category: Toyota
Satisfied Customers: 35837
Experience:  ASE Certified Tech
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My 2003 Toyota Tacoma ac leaks water into the interior floorboard JA:

Customer Question

My 2003 Toyota Tacoma ac leaks water into the interior floorboard
JA: What part of the car is the leak coming from? Have you checked the hoses?
Customer: yes. The ac condensation does not drain from the exterior outlet.
JA: When was your last tune up?
Customer: 90,000 miles last service
JA: Are you hoping to fix this yourself?
Customer: no. Just want independent assessment of problem
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Toyota Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Toyota
Expert:  Ron replied 1 year ago.
Hello and thank you for your question,The problem you are describing is in most cases caused by a plugged up drain hose at the AC/heater plenum. You are going to need to get down under the truck or lift it if you have access to a lift and locate the drain hose right under the bottom side of the plenum at the low point in the housing where it comes out of the firewall. Its a bit hard to see but once you locate it, take some shop air or a cloth hanger and blow and or stick the hanger in the tube and clear the drain. In most cases this will allow it to start to drain again so watch out for water to rush out once its clear.