Antilock Brake System...

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Soul Bandit - 19 Mar 2006 07:11 GMT

If the ABS warning light on the instrument panel stays lit or blinks, and
some one tells you that this would happen if either the anti-collision light
(the cyclopes light above the rear window) lamps fails to operate or the
sensor has failed was nothing to worry about, what would you think? This is
on a 1991 Ford Explorer...

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Backyard Mechanic - 19 Mar 2006 13:32 GMT

> If the ABS warning light on the instrument panel stays lit or blinks,
> and some one tells you that this would happen if either the
> anti-collision light (the cyclopes light above the rear window) lamps
> fails to operate or the sensor has failed was nothing to worry about,
> what would you think? This is on a 1991 Ford Explorer...

If it blinks a code, look it up... do I have to mention 'google'?

If it blinks evenly, or stays on, have the system code{s} read out.

Why would the center-high lamps have anything to do with it? If the center-
high lamps are not lighting, why not replace them or trace for broken wire?

A sensor 'failed' is not 'nothing to worry about', though the ABS failing
should just mean you have same braking ability as if the car never had it
installed. Only you can determine if that is actually the case.

Signature

Yeh, I'm a Krusty old Geezer, who understands the difference between a typo
{breaks, brakes} and illiteracy.

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lugnut - 19 Mar 2006 13:41 GMT

>If the ABS warning light on the instrument panel stays lit or blinks, and
>some one tells you that this would happen if either the anti-collision light
>(the cyclopes light above the rear window) lamps fails to operate or the
>sensor has failed was nothing to worry about, what would you think? This is
>on a 1991 Ford Explorer...

When the antilock light stays on, it means the system has
detected a serious fault and has removed itself from
operation. IOW, your antilock system is now deactivated
making the brake system conventional and much more
suceptible to lockup in an emergency or on a slick surface.
It has it's own controller which requires someone with an
antilock scanner to read the stored fault codes to repair
the system and return it to operation.

Lugnut

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Soul Bandit - 19 Mar 2006 17:28 GMT

>>If the ABS warning light on the instrument panel stays lit or blinks, and
>>some one tells you that this would happen if either the anti-collision
[quoted text clipped - 14 lines]
>
> Lugnut

What would be the most likely cause to make that happen, the mechanic
changing the master cylinder and then bleeding the brakes?
How dangerous do you think it would be to drive without rear antilock brake
functionality?

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lugnut - 20 Mar 2006 01:29 GMT

>>>If the ABS warning light on the instrument panel stays lit or blinks, and
>>>some one tells you that this would happen if either the anti-collision
[quoted text clipped - 19 lines]
>How dangerous do you think it would be to drive without rear antilock brake
>functionality?

That is always a possibility if the RABS valve was not
correctly bled after a MC replacement. If this is the
problem, I should only take a short time to diag the problem
and correct it. The danger of driving w/o the antilock is
something you have to evaluate on your own. What happens if
you are in a situation where the antilock could/would have
prevented a catastrophe? How much do you value the life of
yourself, your family and others who may be involved in a
crash in this situation? The odds are not high but, how
much of a gambler are you?

Lugnut

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clare at snyder.on.ca - 20 Mar 2006 14:11 GMT

>>>>If the ABS warning light on the instrument panel stays lit or blinks, and
>>>>some one tells you that this would happen if either the anti-collision
[quoted text clipped - 19 lines]
>>How dangerous do you think it would be to drive without rear antilock brake
>>functionality?

I have mine disabled for the winter on my Pontiac because in sloppy
slushy weather, with ABS, it is almost impossible to stop (the tires
all get onto a "lens" of slush and the brakes basically shut down).
With the ABS disconnected they can slide enough to bite down through
and get stopped. Yes, you have to know how to drive in the slop to
keep straight when stopping, but I've driven in this crap for almost
40 years without ABS without hitting anything.

>That is always a possibility if the RABS valve was not
>correctly bled after a MC replacement. If this is the
[quoted text clipped - 8 lines]
>
>Lugnut

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fireater - 19 Mar 2006 18:47 GMT

> If the ABS warning light on the instrument panel stays lit or blinks, and
> some one tells you that this would happen if either the anti-collision light
> (the cyclopes light above the rear window) lamps fails to operate or the
> sensor has failed was nothing to worry about, what would you think? This is
> on a 1991 Ford Explorer...

the high mount brake light is not monitored by the abs system.....if
your light is on get the codes read

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