Checked the ohm reading on my temperature sending unit (not the ECT, the one that informs the gauge) and it is ~395 ohms when cold. My Haynes manual says it should be ~74 ohms when cold and around 9.7 ohms when cold (haven't tested that yet).
Also, I think I may be losing a bit of coolant over time, but I can't figure out where as I don't see any drips on the ground. Sometimes when I open the radiator cap, coolant flows back into the overfill tank to just below the "Full Cold" mark. Also, sometimes when the engine is cold and then I let it warm up, the reservoir tank level doesn't change - shouldn't it rise/fall?
My radiator is full to the top.
I had a leaky water pump replaced late last year, then a few months later the "low coolant" light began coming on intermittently. I haven't filled the coolant level at all since then, and it's about 2-3" below the "cold full" mark on the reservoir (which is just below the coolant level sensor).
I don't notice any white smoke from the tail pipes unless it is a cold morning (<50 degrees or so). I don't notice any oil in the coolant or coolant in the oil. Also, all my spark plugs looked like those two I posted pictures of. My o2 sensors were quite white, not green.
Also, I think I may be losing a bit of coolant over time, but I can't figure out where as I don't see any drips on the ground. Sometimes when I open the radiator cap, coolant flows back into the overfill tank to just below the "Full Cold" mark. Also, sometimes when the engine is cold and then I let it warm up, the reservoir tank level doesn't change - shouldn't it rise/fall?
My radiator is full to the top.
I had a leaky water pump replaced late last year, then a few months later the "low coolant" light began coming on intermittently. I haven't filled the coolant level at all since then, and it's about 2-3" below the "cold full" mark on the reservoir (which is just below the coolant level sensor).
I don't notice any white smoke from the tail pipes unless it is a cold morning (<50 degrees or so). I don't notice any oil in the coolant or coolant in the oil. Also, all my spark plugs looked like those two I posted pictures of. My o2 sensors were quite white, not green.