A/C drain

Tiny
DJA
  • MEMBER
  • 1996 CHEVROLET SILVERADO
  • 197,000 MILES
I have a 1996n Chevy Silverado P/U with 197,000 mi. When using the A/C the bottom portion of the interior A/C housing sweats and drips inside the cab. This seems to happen more when the fan is on low speeds. I can't find any sort of drain hose or anything like that which may have been plugged.
Thursday, October 6th, 2011 AT 9:49 PM

2 Replies

Tiny
DAN_K
  • MECHANIC
  • 213 POSTS
There should be an evaporator case drain tube underneath the vehicle on the firewall. Sometimes they can be tricky to locate. this video will help

https://youtu.be/q9_MZiS2_NE

Safely raise the vehicle and - from underneath - look closely for the tube. Most times they can be unclogged, but if it has been happening for some time, it can lead to premature evaporator corrosion/failure.
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Thursday, October 6th, 2011 AT 9:57 PM
Tiny
DAN_K
  • MECHANIC
  • 213 POSTS
Here's the best picture that I could find. I hope it helps.
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Thursday, October 6th, 2011 AT 10:04 PM

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