AutoMD ... 10/28/2013
1992 Honda Accord LX 4 Cyl 2.20L
my car is still running hot after new radiator thermostat and head job
we can take the thermostat out and it runs fine put it back in and it runs hot again. we have tried 3 different thermostats.
Before I try to answer this I need you to tell me that you have opened the bleed bolt located on the thermostat housing and purged the air pockets from the engine cooling system with the engine idling. You also need to confirm that the water pump is pumping by removing a heater hose and running the engine with the heater hose end disconnected and look for flow to confirm that the water pump impeller is not compromised in any way reducing flow. Should have stopped after one thermostat replacement.