Thanks for the compliment on the old Ford. I got it from my boss when it was lwft to him by his elderly aunt who had passed away. It was sitting in the driveway for months and he wanted rid of it in a bad way. It looked pretty scary at the time, but the car started right up with a jump and he only wanted $100! I've put a few hundred into it and its a great little car. The interior's like new and it got really, very little use.
I followed your suggestions today and found that I don't have a cabin air filter. Also, there's no "fog" evident under the hood. I did find out that I was mistaken about the coolant loss, though. I was down almost 2 quarts, so there's definitely a leak somewhere. Thing is, I couldn't find it. I topped off the radiator with coolant and I checked the hose connections, the radiator, the water pump gasket, the radiator cap and petcock and finally, the passenger floor area under the heater core. Not a drop of anything, not even under the car and I had it running for about an hour, maybe a little longer.
I ran it for most of that time with the AC on, on Max and Normal and the engine light never came on, so that problem was, probably, just from the low coolant level. The "fog" problem and the coolant loss are recent occurances, so they must be related. Still, I didn't smell anti-freeze in the interior at all and the only moisture I could find at the heater core enclosure was condesate from the AC and it was just water, not anti-freeze.
I took the car for a ride, about 1/2 an hour and the "fog" is still there. I'm thinking of trying to take the casing off of the heater core, if I can do it without taking half the dash apart to try to get a visual of the heater core. Maybe the leak issmall enough to stay in the enclosure and not drip to the floor, or the enclosure is pretty well sealed after 24 years. Be able to see the heater core might settle the question.
In the meantime, if you have any suggestions, I'm all ears. Your heater core theory still makes sense, though, so I'm gonna try to take a look and see what I can see.
Thanks again, Fisherman and enjoy the weekend.
Saturday, October 6th, 2007 AT 9:25 PM