Leaking heater core?

[Norwester]

My '86, with a/c, was backed into my driveway which is sloped, meaning the front was slightly down.

Engine was running with the heater going. I noticed a fairly slow water drip coming off my a/c evaporator housing. Guess I should mention that the a/c is totally disconnected.

I don't drive the truck a great deal, maybe 300 miles per month. I've had it for about a year and about once every 6 weeks, I put maybe a pint of coolant in.

I'm assuming I need a heater core but before I delve into it, is there another thing to check?

I've never detected coolant inside the cab. Everythng is dry.

What do you think...is a new heater core in my future?

Thanks in advance.

Edit: I just went out and brought the engine up to temp and turned on the heat. I couldn't find any water dripping so maybe it was just the rainwater finding a path down. Think I'll just keep an eye on it.

 

[chengny]

I couldn't find any water dripping so maybe it was just the rainwater finding a path down. Think I'll just keep an eye on it.

Thatta boy! You're doing it right. There's no need to go looking for trouble - it usually finds you.

 

[HotRodPC]

My '86, with a/c, was backed into my driveway which is sloped, meaning the front was slightly down.

Engine was running with the heater going. I noticed a fairly slow water drip coming off my a/c evaporator housing. Guess I should mention that the a/c is totally disconnected.

I don't drive the truck a great deal, maybe 300 miles per month. I've had it for about a year and about once every 6 weeks, I put maybe a pint of coolant in.

I'm assuming I need a heater core but before I delve into it, is there another thing to check?

I've never detected coolant inside the cab. Everythng is dry.

What do you think...is a new heater core in my future?

Thanks in advance.

Edit: I just went out and brought the engine up to temp and turned on the heat. I couldn't find any water dripping so maybe it was just the rainwater finding a path down. Think I'll just keep an eye on it.

Yes, I was going to say, probably water out of the cowl if it's just water. If it's antifreeze or rusty water, then you have reason to wonder about the heater core.

 

[Stepside Billy]

If it was the heater core you would smell anti-freeze in the truck.