Knock when braking

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Mikie
LR 4WD Full Lockers
LR 4WD Full Lockers
Posts: 728
Joined: Wed Jan 12, 2011 10:15 am
Town: Kyalami
Vehicle: Hilux 2006 3.0D4D 2x4 DC
Real Name: Mike
Location: Kyalami

Fri Apr 21, 2017 10:02 am

My 2006 3.0 D4D has developed a knock when braking
It doesnt always do it but I am hoping someone else may have experienced the same thing and can point me in the right direction

Sometimes when I brake for a stop street or robot, I get one single knock from the front, sounds like something around the engine or possibly axle. Seems to only do it when there has been a longer run between robots and some decent speed.

One thing I have considered is possibly a damaged bush on an engine mount?

Hope someone can help me sort this one out

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Mud Dog
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Vehicle: '90 SFA Hilux DC 4X4, Full OME, 110mm lift. Brospeed branch, 50mm ss freeflow exhaust. 30 x 9.5 Discoverer S/T's on Viper mags. L/R tank. (AWOL) '98 LTD 2.4 SFA, dual battery system. Dobinson suspension, LR tanks, 31" BF mud's.
Real Name: Andy

Fri Apr 21, 2017 12:49 pm

Hi Mike. Engine and gearbox mounts will only cause noises on acceleration and deceleration.

Noises on braking will be related to suspension, steering and braking components. Check the callipers, control arm bushes, idler arm, torsion bar bushes, ball joints and tie rods.
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Mikie
LR 4WD Full Lockers
LR 4WD Full Lockers
Posts: 728
Joined: Wed Jan 12, 2011 10:15 am
Town: Kyalami
Vehicle: Hilux 2006 3.0D4D 2x4 DC
Real Name: Mike
Location: Kyalami

Fri Apr 21, 2017 2:12 pm

Well I say braking but its only a single knock and when there is a harder deceleration.

Still comes down to either, Controls arms, engine mounts

Thanks Andy,

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Family_Dog
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Real Name: Eric
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Location: Klerksdorp, NW
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Sat Apr 22, 2017 9:39 am

Had something similar on Bulldog some years ago. Turned out to be a shock with a snapped rod, only apparent when upgrading the tired suspension to OME.


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User avatar
Mikie
LR 4WD Full Lockers
LR 4WD Full Lockers
Posts: 728
Joined: Wed Jan 12, 2011 10:15 am
Town: Kyalami
Vehicle: Hilux 2006 3.0D4D 2x4 DC
Real Name: Mike
Location: Kyalami

Mon Apr 24, 2017 7:14 am

Looks like I am going to be doing some hunting for a knock

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