sssosborne

Hello, we are having issues with our 2003 Baja overheating. It happened once, it was all the way on the H before I noticed it. Never had too much trouble out of it. I pulled over, the reservoir cap was off and there was fluid everywhere. We got it home, flushed the system, replaced the thermostat, checked for leaks, checked the radiator and hoses, there are no bubbles coming from the reservoir, all seemed well. (The head gaskets were replaced barely 2 years ago). It ran fine for about a week. Then same thing...hot, pulled over to let it cool...got it back home, getting hot again about every 1-2 miles and pulling over again to let it cool (took forever to get home lol). Then, we replaced the radiator cap and it ran fine for about a day. Next, we replaced the water pump and the thermostat again. This time, it ran for about 45 miles and then got hot. We pulled over to let it cool. It ran for about 10 more miles before it got hot again. After letting it cool a second time, we went about another 10-15 miles to our destination and it didn't get hot again. It won't get hot while running in the driveway, even when reving the engine. It has to be driven before it will overheat. We believe we have gotten all the air out so the thermostat will open properly. The fans are kicking on. We have driven it short distances 3-4 miles to town and back with no problem for about a week now. Today, drove it further, about another 45-50 miles (not at once, 8 hour break in between) and it got hot again on the way home. Getting hot again after a cooldown about every 1-2 miles instead of 10-15. Is this a head gasket issue? And why would they fail if they were replaced only a couple of years ago?