question for those with abs

[giovannie23]

does your abs modulator valve make a 2-3 sec loud groaning noise when key is turned to "on" postion ( with engine off)
i was wiring up my cb to the in cabin fuse box
and noticed this sound whenever i turn key to on position
im not sure if it was there before and never noticed it
wanted to see if this a normal thing or not
its a 97 thanks guys

this is the part im talking about

 

[gmcmanus663]

My trucks abs does this with the key on, however it is an 02 and I know the braking system, as far as abs goes is different on newer trucks. I think the sound that mine makes comes from around the brake master which, on newer trucks is where the abs module is

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[reelamin]

96...no noise...sounds like maybe yours is running a test or prep phase

 

[giovannie23]

Yea it kinda sounds like a motor turning on and then dieing
I have no abs lights on
It doesent seem to make the noise if I start the engine
only if I have to key to the on position for a couple seconds

 

[T4R2014]

Normal. Both of mine do it.

 

[nissanh]

I have the exact same sound in that area with ignition on (engine off). It goes away in a second or two. Been like that for past 7 years.

 

[Tinigunner11]

My 97 does it. It's normal it's the system running through its start up process.

 

[Donny Voodoo]

between the ABS groan and the charcoal canister mooing and buzzing my '96 is a symphony of barnyard noises.

 

[JayRolla]

Normal on my 96 also.

 

[giovannie23]

between the ABS groan and the charcoal canister mooing and buzzing my '96 is a symphony of barnyard noises.

i was thinking the same
i actually solved my canister buzzing
one of the hoses came loose from the clip

thanks guys ill carry on now :hatsoff:

 

[00Spork]

I used to have abs, I had like a 6 pack! Then I started drinking beer. I no longer have abs. Sorry I can't answer your question. Wait... different kind of abs?? My bad, time for more beer. :beer: