98 Dodge Ram 1500 A/C drip?

Tiny
MSZENAS
  • MEMBER
  • DODGE RAM
Floor boards on passenger side getting wet between seat and door. Seems must be a clogged drain tube, but I can't find it? Any help would be appreciated. Thanks
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Tuesday, October 16th, 2007 AT 5:40 PM

7 Replies

Tiny
MERLIN2021
  • EXPERT
If your truck is high enough look underneath it were the evap plenum meets the firewall, you should see a hole in that area, clean it with a plastic tie wrap so you don't punture anything in the case!
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Tuesday, October 16th, 2007 AT 5:44 PM
Tiny
MSZENAS
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Not sure what the "evap plenum" is or what it looks like? Could you give me a little more guidance here, the truck is high enough. Thanks
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Tuesday, October 16th, 2007 AT 5:49 PM
Tiny
MERLIN2021
  • EXPERT
Open the hood, look were the A/C lines go into the truck, that's the plenum!
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Tuesday, October 16th, 2007 AT 6:03 PM
Tiny
MSZENAS
  • MEMBER
I found a horizntal drain tube coming from the fire wall/plenum. Stuck a tie wrap in there a couple times, didn't see anything other than water drip out.

It is dripping out the tube, but I'm still getting quite a bit of water inside the truck as well, coming from the same area. What now?

Thanks !
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Friday, October 19th, 2007 AT 11:12 AM
Tiny
MERLIN2021
  • EXPERT
Well if you go to an A/C -plumbing supply house, you can buy evaperator core wash, this will not harm the metal it's made of, then pour some into the air intake with the fan on high, this will flush the gunk out of the core! Air intake is accessed by removeing the wiper blades on some models, then take off the cowl then you should see the air intake, you may have a cabin air filter, remove it first to see the intake. Pour this SLOWLEY! It must pass by the electric fan! Option 2 get some compressed air in a can, use the plastic extension and blow the clog out.
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Friday, October 19th, 2007 AT 3:32 PM
Tiny
MSZENAS
  • MEMBER
I removed wiper blades and cowl, but don't see the air intake? Could it be somewhere else?

On option 2 above, can I blow air directly into the drain tube to remove clog or does the air need to come thru the intake? Many thanks!
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Saturday, October 20th, 2007 AT 5:53 PM
Tiny
MERLIN2021
  • EXPERT
According to Dodge the intake is under that cowl. Look for any grilled ir finned area under there. You can blow up into it.
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Saturday, October 20th, 2007 AT 6:21 PM

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