I replaced the thermostat but then it still overheats. 94 acura?

Answer 1

Make sure all the air has been purged from the system. Air will be trapped at the highest point in the engine. That means the head area.
Fill the radiator, move the heater control to HOT, loosen a heater hose (with the engine cool) & allow any air to escape. Replace the hose & run the engine with the rad cap off. Monitor the coolant level [from a safe distance] once the engine has reached operating temperature.

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Answer 2

I think you might need a new water pump.

BUT it could also be

A clogged radiator, a bad radiator cap, a broken belt if the waterpump runs off a serpentine, any type of coolant leak, a blown head gasket, if too may fins on the radiator are bent over so you get poor or no air over the radiator, a bad fan or fan clutch”

You should get a diagnostic done before you do anything.

Answer 3

Disconnect the bottom hose on the radiator and flush it out from the top.Also flush the heater matrix.Connect all hoses and bleed any air from the system.Run up until hot enough as the electric fan operates.Check for any leaks.

Answer 4

YOU COULD HAVE A DIRTY RADIATOR, AIR IN THE COOLING SYSTEM, NON WORKING COOLING FANS, BAD THERMOSTAT OR AN INTERNAL ENGINE PROBLEM.

TRY FINDING AN INDEPENDENT AUTOMOTIVE REPAIR SHOP INSTEAD OF THE DEALER OR ANY CHAIN STORE BECAUSE YOU WILL BE OVERALL MORE PLEASED WITH THE PERSONAL SERVICE THAT YOU WILL RECEIVE.

Answer 5

It could be a lot of things. How is the head gasket ? Make sure the timing is correct.

Answer 6

could be a dirty radiator...try flushing it out....same prob with my mustang . and it was all because the water wouldn't cycle because all the crap in the radiator.