so yesterday my tach stopped working, and my "add coolant" alarm keeps going off, i dont need coolant and my temp is fine i'm dont know where to start for both of these problems.

not only that but my car seems a lot louder than it was yesterday, and it seems like its running way harder, wondering if i'm boost spiking i dont see how though.

let me know if you guys can think of anything

 

i m having a similar problem, but my buzzer goes off only at start up and at a stop for the first 10 min of warm up time... after that it goes away... If i figured out what it is, i can sure send you a pm about it.

 

that'd be awesome man, thats what its doing with me. and its so annoying because it seems like it only wants to go off while i'm talking on the phone haha.

 

check your add coolant sensor. i had the same problem and found the wire to be barely hanging together. i had to solder it

 

wire's fine. i burped the system, turned the car on cold, opened the radiator cap let it idle filled it with a water/coolant mix drove it and its fine now havent heard one peep from that buzzing annoyance.

but i'm still having a tach problem.

any ideas?

 

your tach just "stopped working"?

I know it's not uncommon in FDs, I don't know what the fix would be besides buying a new tach, which is what I did.