Heater box swamped?

Mr.4spd · Dec 26, 2012

I noticed a water sloshing sound inside my cab when driving around this fall/winter. I also noticed that even when the engine temp is up I get very little heat for 10 minutes or so. Anyone run into similar problems? Could the heater box drain be plugged and the box full of rain water? (01 Ram). Is this tough to remedy?

Bigtman07 · Dec 27, 2012

It sounds like the drain is plugged or the heater core is shot putting water and antifreeze into your box. Best way to fix it is to pull the dash and the box. Take the box apart and replace the heater core.

Mr.4spd · Dec 28, 2012

I guess I was hoping to get out easy, I'm gonna try and find the drain and hook a shop vac to it or probe around with a piece of wire. I really don't want to pull the dash...

Okiespaniel · Dec 28, 2012

Theres a nipple coming out of the box that could be plugged, you'll have toget at it from under the truck.
Your heater core is normally isolated from this, so it you're not gettting hot air you could have a plugged core or your blend door isn't working properly.

If your core itself is bad you'll smell antifreeze and when it gets real bad the defroster is useless and steam rolls out your vents.

The water sound you hear could be air in your cooling system. These trucks at this age are real tough to keep sealed up.

Bigtman07 · Dec 28, 2012

^^^^^Agreed Okie. But my drain is in the fire wall is there another drain?

Okiespaniel · Dec 28, 2012

The drain is in the HVAC box, and it comes through the firewall. Dam symantics always trippin' me up!

Heater box swamped?

Mr.4spd

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Bigtman07

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Mr.4spd

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Okiespaniel

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Bigtman07

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Okiespaniel

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