Help Please, My 88 RX-7 Is having problems with that anoying buzzer going off and on and it was getting warm, It replenished the water the buzzer stops then next time I go to drive the car the buzzer starts again and I have to add coolant again. I have to filler caps, one on the thermostat housing, one on the radiator. I have changed the thermostat, the water pump is less than a year old, I have new caps they are both 13 lbs.
Should I have one 13 and one 16? I do not see it leaking any water at this point. The clutch fan is fine, it seems to be circulating ok. What am I missing??????

Help Please
Perfect36

 

Possibly air bubbles in the coolant system. You will have to bleed the radiator.

 

Sorry don't mean to be smart ***. any other suggestions?

Sincerely, Fustrated

 

You're not actually supposed to have two pressure relief caps; the one on the thermostat housing is just a filler. Unless you see leaking there, this isn't your problem though.

If you are loosing coolant, you either have a leak somewhere or a failed coolant seal in the engine. Take the car to a radiator shop and get them to pressure test the system to see if you can locate any leaks. Don't forget the interior heater core as a possible location for a leak.