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JHP JHP is offline
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Join Date: May 2002
Posts: 90
brake accumulator/ differential lock

On a c4, can I just plug the port on the pressure accumulator that leads to the solenoid which controls the differential locks?
I don't care to have the differential locks operating. Any issues doing this?

I am contemplating this because I notice the brake pump turn on for a few seconds each time I press the brake pedal. thereafter, i noticed there is a leak on one of the differential locks so thinking that might be causing it and or possibly the accumulator is bad?

thanks

Old 04-25-2020, 06:35 PM
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Join Date: Jun 2015
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You really don’t want to do that. You will lose the awd and your rear differential control.

Just rebuild the diff locks with new seals.
Old 05-06-2020, 05:10 PM
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That pump runs like that on the C4 .. normal operation
the green pressure switch sometimes blows and then the pump will cycle..
Old 05-12-2020, 10:34 AM
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JHP JHP is offline
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Turned out to be a bad accumulator. Thanks for the replies!

Old 05-13-2020, 03:50 PM
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