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Loosing vacuum assistance - brake & clutch

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

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Posts: 221
Joined: Mon Sep 06, 2004 3:29 pm
Location: Sydney

Loosing vacuum assistance - brake & clutch

Post by muzza_fattire »

Guys,
I seem to be randomly loosing vacuum assistance on brake and clutch in my car. Loosing the clutch doesn't really worry me but the brake does... Scary when approaching an intersection and the car keeps rolling cause I can't push hard enough... :shock:
Also scary on the weekend when reversing down a hill to snatch a mate up a ledge and the car keeps rolling...

It doesn't seem to have any order to when it fails ie. low/high revs. Seems to be random...

Does anyone know what it could be???
*****************
'88 GQ SWB TD42
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Joined: Sun May 25, 2003 10:04 am
Location: Redbank Plains, QLD

Post by Daisy »

what car is it??

alternator vacuum pump is prolly rooted or you have a vacuum leak somewhere

TOM
Posts: 221
Joined: Mon Sep 06, 2004 3:29 pm
Location: Sydney

Post by muzza_fattire »

See signature....
*****************
'88 GQ SWB TD42
Posts: 2492
Joined: Sun Nov 24, 2002 8:57 pm
Location: Melbourne

Post by bazzle »

:T: a vax gauge in there and see when it goes, or leaks. There is a one way valve that 'may' leak. Also in the past I have put aux vac tanks on Patrol (petrol and diesel) to hold vac for those times you need to hold brakes ie. on leg shake hills.

Bazzle
Posts: 221
Joined: Mon Sep 06, 2004 3:29 pm
Location: Sydney

Post by muzza_fattire »

Where abouts is the one-way valve?
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'88 GQ SWB TD42
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Joined: Tue Oct 05, 2004 11:29 am
Location: Sunshine Coast

Post by Bingham »

mine did that one day on way back from rainbow beach...

had a very slight crack in top hose
bingham
2015 200 Series Gx TTD - ................ Fark 3L's -
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