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Front brake sensor

has anyone ever heard if such a thing ? I have a slight pull from time to time to the left of my truck, I was told that there is a sensor that may be going out that when it does, it “over-corrects” and causes this situation ?same 97 GMC Sierra

I’ve heard of it but I don’t remember the details. It was in the power steering system, however.

right - I meant steering sensor - not brakes - sorry -

very weak.

is this one of the gmc’s with the flexible steering, where it steers one way on the highway, an differently while parking?

what do you mean , “very weak” ?