Groan in rear end of C4

[mi1dzyr]

Could be good news...

Hello my name is Frank and this is my first post. I have a 1990 L98 (Auto). I may have some good news to your wallet with regard to the moaning problem that you've written in regard to.

It sounds like nothing but the ABS cycling check. Mine has done this since new and it is normal.

It cycles after the car is parked for a period of time and then the car is put into a forward gear and you take off. It's not a problem, if I'm counting correctly the cycle on last for about 4 seconds. Save your money...that's normal operation of the ABS.

Hopefully this puts you at ease Rick, don't throw good money to the wind buddy! Research proper ABS functioning, you'll see that you may not have a problem at all buddy! I'm not giving the definitive only because I don't have a 1992 C4, but hopefully someone with one or a later one can chime in for peace of mind's sake.

:Twist

 

[Radar]

You know,

My ABS 'moans' when I first start the car and drive it from the garage. Could that be the sound he hears? I think the ABS computer is resetting the sensors or something and that makes the sound. Then it is gone until the next time I shut it down and then resart it.

Radar :confused

 

[vettepilot]

mi1dzyr,
You know that is probably what he is hearing, I remember now that my two C4s did just that just as it was moving either forward or in reverse.
Too bad we can't hear his noise over the internet, we would probably recognize it right away as the ABS.


vettepilot

 

[mi1dzyr]

I've got to check reverse today!

I think you're right vp. either reverse or forward...I'll check it tonight...

Can you say, the top is coming off the coupe today? It's a summer day in LA....oooooh, that rhymes.

Frank.