coolant / heating issues
New fan clutch, water pump, thermostat, upper and lower rad hoses, rad pressure washed.
I KNOW there is some air in circuit and I keep trying to bleed it out.
When driving temp stays at 12 o'clock (medium) then will occasionally climb and sometimes hit red, then the temp drops (I replaced the thermostat).
Other issue is that heat is very sporadic when the heat is on full.
My thoughts are:
1) partially blocked heater core
2) heater valves malfunctioning
3) air in the circuit is causing all the problems
Any advice ?
I'm thinking of draining all fluid, removing hoses to heater core and flushing that seperately, do the heater valve cleaning, refill and bleed.