Thread: Lost power assistance in brakes

Telling us what sort of vehicle and what engine might help us to answer your question.

Garry

Looking at your other posts, you have a 300tdi Defender.

Find another mechanic or do it yourself. It's just the vacuum pump that needs replacing & it's not a big job to replace.
If he's quoting you 5hrs, he's trying to say 'I hate Land Rovers'.

sounds TDI ish to me.

its a DIY job to drop and replace the vac pump.

since my weekends gone to crap anyway, go give M R Auto (32846688) in redcliffe a call, take the vehicle there, ask them what they think it is buy the parts and come over here and I'll fit it up.

Originally Posted by Scouse

Looking at your other posts, you have a 300tdi Defender.

Find another mechanic or do it yourself. It's just the vacuum pump that needs replacing & it's not a big job to replace.
If he's quoting you 5hrs, he's trying to say 'I hate Land Rovers'.

Thank you scouse and to blknight.
I should update my info I am now in nsw but the information is helpful and i will take it to another mech for a second oppinion and buy the part.
if it takes 5 hours its better i spend the 5 hours doing it at no charge.

Vac pump about 20 minute job, Defender a little longer because airfilter assembly needs to be removed first.

Part should be around $400 or so, but make sure you buy WABCO branded one, there are cheaper ones but unreliable.

JC

This gives me some confidence to ask about mine as well. I have noticed that my defender has no better braking ability than an old SIII I used to drive occasionally. I really need to plan my stops. Am I possibly in the same situation?

Originally Posted by HUE166

This gives me some confidence to ask about mine as well. I have noticed that my defender has no better braking ability than an old SIII I used to drive occasionally. I really need to plan my stops. Am I possibly in the same situation?

Yes possibly, check the vac pump is working properly by disconnecting the hose at booster and with engine at idle, should have a relatively smooth vacuum supply. If there is an obvious 'pulsing' of suction, then possibly 1 of the valves in the pump is faulty, supplying way less vac than required. (IIRC the amount of vacuum available should be better than 15" Hg.)
Another problem Defenders suffer from is split boosters, check for vac leaks around master cylinder mounting bolts where they split and leak vacuum. The harder you push on the brake pedal, the more they leak

JC