ricksrx7

I have been having trouble with my coolant buzzer lately making noise until my engine warms up. I checked my coolant levels, everything looks good. It just annoying listening to buzzer for good 10 minutes. Is there anything else I can do? Any suggestions greatly appreciated.

Pele

iTrader: (28)

It seems like you have air bubbles in the cooling system. You may need to bleed them out.

Give us some more info: What kind of car and have you recently had any sort of cooling system service? (Radiator, or water pump replacement, etc.)

ricksrx7

Its a 1993 Rx-7. Yes I just bought it from the dealership, was told they replaced radiator. A separate water temp gauge is installed so I am keepin an eye of the temp. How do I bleed out air. I seen methods where it looks like a funnel filled with water and observe the bubbles while engine is running. If so, can u tell me how to do that method?

dgeesaman

iTrader: (7)

Does this come with a warranty? Since you bought it from a dealership you might get some coverage if you don't delay. 3rd gen RX-7s can overheat from a radiator issue and if you only change the radiator you might have an engine with damaged coolant seals. Even Mazda dealers have a history of getting RX-7 diagnostics wrong.

I would look up the "champagne bubble test" and test and look for bubbles, or if you can find a rotary specialist shop, let them investigate.

If your car is eating coolant you can get your symptoms. It could be as simple as needing a new radiator cap, but it could be an engine needing rebuild. I would hurry because if it is the latter, time is critical to getting the dealership to cover it.

Dave

ricksrx7

Thanks for the advise.

ricksrx7

Does anyone know whats the black washer-looking piece on top of the coolant resivior tank? Is it normal when I fill it with coolant for it to overflow out of that black washer-looking part.