SL/R230: accumulator test
accumulator test
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Joined: Jul 2014
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From: Tucson, AZ
'20 X5 M50i; '17 Ram 3500; Golf Cart; Bikes; Scooters
There are no tests, that I am aware of, that can be done without removing the accumulator.
Most will remove the accumulator and see if you can poke the eraser end of a pencil into it. If it goes in more than an inch, or you don't see the white plastic part in the entry, it is likely bad.
There are a number of issues that will give the 'drive carefully' message, not just the accumulators.
A bad pulse dampener coming off of the pump (found in the rear portion of LF wheel well) will sometimes show up as a humming noise. Most other accumulators will only show issues as 'drive carefully', or none at all.
Most will remove the accumulator and see if you can poke the eraser end of a pencil into it. If it goes in more than an inch, or you don't see the white plastic part in the entry, it is likely bad.
There are a number of issues that will give the 'drive carefully' message, not just the accumulators.
A bad pulse dampener coming off of the pump (found in the rear portion of LF wheel well) will sometimes show up as a humming noise. Most other accumulators will only show issues as 'drive carefully', or none at all.
