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warning lights and combination valves

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by

Joshua Perez

on 1 May 2013

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Transcript of warning lights and combination valves

warning light and
combination valve combination valve pressure differential switch ABS light explained warning lights brake warning light by: Joshua Perez the combination valve consist of three valves.
the three valves are called the metering, proportioning and pressure differential valve. ABS stands for anti-locking brake system. ABS light comes on when the ABS sensors detect a failure. the ABS light has two different colors, yellow and red,. the yellow
light means that the ABS system has detected a problem
in the system. you should call your mechanic for a appointment. if you continue with your car unchecked it
will advance to a red light which means you HAVE to get it
towed to a mechanic for immediate repair peace out
by: the one and only Josh Perez The pressure differential switch is exactly what the name implies - it's a switch. There is a "shuttle" or piston inside that moves to one side or another upon the loss of pressure on one side of the system. .The pressure differential switch does not affect fluid flow or pressure to either side. It's job is strictly to warn of a pressure loss or difference.Typically, it takes 80 to 150 psi. difference for it to "trigger". It does not have the ability to block fluid flow, nor does it need to with a divided "safety" type master cylinder. the brake warning light can turn on when
you activate the emergency brake. but sometimes it could stay on even when you take out the emergency brake. This can mean that your hydraulic pressure has been lost in one side of the brake system or it could also be that the level of the fluids in the master cylinder needs to be checked. If the fluid is running on dangerously low levels, this can mean that there is a leak somewhere in the brake system. In both these cases, you should carefully check the fluid levels in the master cylinder. you can keep filling up the master
cylinder with brake fluid. but this will only stop
the problem temporarily. warning
lights come
on when the
car detects
a problem
in that area
of the car thank you for listening to
my amazing project
Full transcript