Okay, guys. I finally got a chance to investigate so I'm going to post what I know. Let me say first off that much of what I'm going to post is going to be second-hand information. I bought the car a short time ago from my friend. He told me it had a problem, but the price I paid is WELL below what that car's worth. It'll be a great car once I figure out what's up.
Okay, here's what my buddy told me: the first thing he said was that he'd noticed that it'd been "running hard" in recent times. I asked him what he meant and the only thing that he said was not running as smooth and a bit louder than usual. I asked how far back, he said not long. But, I should mention that he knows NOTHING about cars and I'm almost certain that no preventive maintenance has been done. I'm sure a tune-up would do it wonders. Anyway, he said that toward the very end, there were an instance where he was driving and it died on him. He said that just before it died, he could tell that it was about to die, but the sound wasn't your typical chugging that a car makes just before it dies. He also told me that after it died, he saw smoke coming out from the passenger side wheel well, but said that it wasn't black smoke. That's when he parked it and decided to get rid of it. He's got a great job now, and he decided that rather than taking it to a mechanic, it was time to get a new car.
That's all he told me. I was going to take it to a mechanic recently, but I kinda figured a few things out. So, I decided to give the forum sights a shot before turning it over to someone else. Who knows... we might be able to figure it out on our own.
Anyway, I had a friend following me to the mechanic, and when we got there I shut her down. He asked me if everything went all right, and I told him that it was fine. He asked me if it idled fine, and I said yes and started it to show him. Right after I started it, he told me to shut it down. He noticed that the temperature guage was in the red. Dumbass me missed that one. Luckily, the shop is close to my house, so I couldn't have gone far with it running hot.
So, we opened the hood, and I check the upper and lower radiator hoses for pressure before popping the cap. There was no pressure whatsoever, which led me to believe that it had no water. So, I CAUTIOUSLY opened the radiator cap and took it off. No water or steam spurted out. However, I did notice that the cap was trashed. The innards were broken. So, that led me to believe that I'd solved the mystery of the smoke. I figured that the cap wasn't sealing and allowing the system to pressurize and that the coolant was leaking out from the cap. It took almost two gallons of water and coolant to fill it up, and at first I believed that the cap was to blame.
Anyway, my friend told me that he had another cap at his house, so I went with him over there to get the cap. It was there that I noticed that the overflow reservoir was completely full. So, I took the cap off of that and noticed that there was no hose. The elbow that goes through the cap is broken on the inside, so the hose won't hook onto it anymore. Hell, the hose is probably inside the reservoir. I can't tell, though, because it's full. Evidently, the coolant is shooting in there when it's hot, but can't suck it back when it cools down, cuz there's no hose.
He gave me the new cap, and I put it on. Wait, not new. It was a used cap. Anyway, we got it all full of coolant and fired it up and let it run for a while. There still wasn't any pressure in the upper and lower radiator hoses. These should be pressurized, right. Also, I noticed that while it was running, coolant was bubbling out from the overflow cap (where the missing hose was supposed to be). Is that supposed to do that? Isn't the system supposed to pressurize? It shouldn't allow the pressure to escape out there, should it?
Here's my take on the situation: I think that my buddy was losing coolant, but didn't know it. I think that the car got too hot and started to run shitty. Do Honda's do that? Would it shut down on him if it got too hot? It seems to be running perfectly for me... well, except for that fact that the cooling system won't pressurize. I didn't notice any sort of 'running hard'. It sounded and ran like a Honda is supposed to, as far as I'm concerned.
All right, let me know what you guys think. Sorry that my information is limited. Like I said, it hasn't done anything to me like what it did to my buddy. I'll post back if it ever does. In the mean time, let me know what you think about this coolant problem.
Thanks for reading
Jon
P.S. I need a new coolant overflow tank cap, if anyone's got one. The car is a 1994 Accord. The one on there is broken.