Fixed all but still runs warm/hot
Hey, I am at a loss here. I bought my dream truck an 89 RRC County last summer and knew it had quirks like constant battery light (I had the alternator rebuilt, and a new optima battery, cleaned off all grounds except possibly one I missed?), the washer fluid light (even though the res was full. Float switch probably corroded), The heater core diversion, some other odds and ends like leaks into the floor boards(probably sunroof drain) Oh yeah and rough idle (new idler thingy fixed that). But with all that, I drove it through a blisteringly hot summer, it still ran a little warm well it was id say 3/5 of a tank warm on the temp gauge, I'd kick on the a/c and let the aux fans kick on and we were fine.
Well, after all of that, I started noticing it would edge past the 3/5 line and work its way to the 4/5 line. The top line was tight so, I grabbed a new thermostat and installed it, thinking that would remedy the issue. It did... for a while.
Winter arrives and I start noticing it still ran 3/5 - 4/5 warm I checked all the fans, they all worked, the thermostat was trucking along. I thought maybe head gasket??? So I checked the oil. Clean as a whistle, did the exhaust gas test on the radiator, the color never changed. So I said, what the hell, I replaced the heater core, It still went to 4/5 hot, then installed a new water pump, and some new hoses. Still 4/5 hot. I made sure I topped off with rad fluid all over the place, still, 4/5 almost reaching into the red but never getting there. It's not leaking rad fluid, It's not blowing white smoke, the oil's not milky. The viscus fan feels viscus-y when I turn it when warm... When I take off the cap to the overflow tank and squeeze on the hoses there is movement. Is it the radiator? Is it the head gasket? Is it the temp sensor? The engine feels freaking hot (I don't have a thermometer) But is def baking.
My question to the great and wonderful forum... What the hell is going on with my truck?!?!? I yield the floor.