Severe steering wheel rotating back & forth - Hot Brakes

I have a 2001 1 ton Chevy Express van cutaway that has an RV mounted on it.

I have had 3 front end brake jobs trying to correct a problem. (Courtesy of
Chevy....Thank you!)
It seems that when I drive down long steep hills or mountains that require
frequent braking my steering wheel will start to whip back and forth with
the frequency and severity increasing as the brakes get hotter.

After the brakes cool down they behave normally as does the steering wheel.

I just had a front end alignment and the technician who did it said that he
was very familiar with the problem.

He said the ABS sensors are causing the problem. That he frequently sees it
on RV's and some trucks. he has seen it on both Fords and Chevy's.

He stated that the cure for the problem is pulling the ABS sensors out of
the front wheels.... but that is illegal.


Have any of you had a similar problem?
Have you found a legal fix?
Is anyone aware if GM has come up with a solution to this problem?

I would like to keep the ABS Brakes

Thanks

Dunc (Who lives amongst several mountains....)

Had the same problem on the front of my 95 GM Conversion. On mine the
problem is the idler arm being worn. Because of the way it mounts ANY
WEAR shows up when under hard braking. Cured mine by replacing the idler
arm, adjusting the steering box to remove any play. and replacing all
the front end bushings. No more shudder. Has nothing to do with the ABS,
if you want to prove it just remove the ABS fuse to disable the system
and you will find the problem is still there. Also make sure the front
brake rotors are true and that the calipers are NOT loose in the slides,
that can cause it as well.

--
Steve Williams
Near Cooperstown, New York


"Dunc" <Dunc.F.DeleteThis@CenturyTel.Net> wrote in message
news:P6idnavQXcm6iF7fRVn-rQ@centurytel.net...
> I have a 2001 1 ton Chevy Express van cutaway that has an RV mounted
on it.
>
> I have had 3 front end brake jobs trying to correct a problem.
(Courtesy of
> Chevy....Thank you!)
> It seems that when I drive down long steep hills or mountains that
require
> frequent braking my steering wheel will start to whip back and forth
with
> the frequency and severity increasing as the brakes get hotter.
>
> After the brakes cool down they behave normally as does the steering
wheel.
>
> I just had a front end alignment and the technician who did it said
that he
> was very familiar with the problem.
>
> He said the ABS sensors are causing the problem. That he frequently
sees it
> on RV's and some trucks. he has seen it on both Fords and Chevy's.
>
> He stated that the cure for the problem is pulling the ABS sensors out
of
> the front wheels.... but that is illegal.
>
>
> Have any of you had a similar problem?
> Have you found a legal fix?
> Is anyone aware if GM has come up with a solution to this problem?
>
> I would like to keep the ABS Brakes
>
> Thanks
>
> Dunc (Who lives amongst several mountains....)
>
>
>



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