v8mazda4ever

So got myself a new ride a 1993 rx-7 infini twin turbo body is in excellent condition but I do have one problem and really need help before I poke a hole in my ears. I have a buzzing in the car which I believe is fron the add coolant light that is on. I know the coolant is full and for the first drive that I was on I was in the car for 3 hours and it never overheated or ran off at all it drove and ran mint but like I wrote the buzzing will not stop and I am new to rotorys actually my first one and I really need to know what I need to do . thanks for any help.

misterstyx69

iTrader: (142)

Check the sender on the top of the rad and make sure that the wire is hooked up.It is a single wire(low coolant sender).

WiredRebel

iTrader: (4)

Find the buzzer and hit it with a BFH

Aaron Cake

iTrader: (1)

Also, make sure there are no air bubbles around the sensor by bleeding the cooling system.

JDK

iTrader: (8)

FD's have NO sensor on the rad, but it could be the low coolant sensor which is on the water pump housing or most likely the wire is broken or unplugged from the body harness which is located near the power steering (small black plug).

v8mazda4ever

Thanks for the suggestions and I will check the sending unit and the wires. Now who knows of some one in the toronto Barrie area that really knows these rotory motors so I can get her tuned and fully checked out.

moosejaw

iTrader: (6)

I had the same problem
The wire broke off the connector and was left dangling there.
Right above the spark plugs
cant miss it

Aaron Cake

iTrader: (1)

Head over to the Canadian forum and take a look at the rotary shop sticky thread.

supak111

iTrader: (3)

My new FD (just once) wouldn't stop buzzing right after I started it in cold weather???? I couldn't figure out why but after turning it off and restarting it it was gone. Anyone have a clue why that could have happened??

Aaron Cake

iTrader: (1)

Air bubble in the AST. Assuming it was a coolant warning...

CharlieUK

mine did this, I changed the sensor, still did it....then it started bursting radiators so I thought it was a faulty O ring which needs a rebuild.

v8mazda4ever

well this thing is still buzzing but everything else is running nice I figure I am going to let it be for awhile and work on my skyline or my moms 240 I am building her

CharlieUK

cool, is that Barrie down in the depths of Wales?

v8mazda4ever

No Barrie ontario canada