2005 freelander td4

I have a problem with the vacuum pump for the brake servo it does not suck as it should I have changed it and get the same result which means the brakes are not very good, any suggestions?

bobgawthorpe said:

I have a problem with the vacuum pump for the brake servo it does not suck as it should I have changed it and get the same result which means the brakes are not very good, any suggestions?

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Maybe the vacuum pump is fine but the brake booster filter is blocked or the diaphragm is split?

Nodge68 said:

Maybe the vacuum pump is fine but the brake booster filter is blocked or the diaphragm is split?

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does any one know what the vacum pressure should read on tick over?

bobgawthorpe said:

does any one know what the vacum pressure should read on tick over?

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That vacuum would vary from engine to engine a bit but something around 18"Hg wouldn't be far out. Does the vacuum hold after the engine has stopped? If not then the fault is likely the brake booster diaphragm.

Thanks for that, but when the hose is off the pump and engine running there is very little suction,a gentle lifting of the finger tip skin. You mention booster filter where do i find that?