During the test drive, watch out for
a knocking noise from the front end.
Front sway bar links go bad often resulting in
a knocking noise from the front end when driving slowly over small bumps.
A worn connecting rod bearing will produce a metallic, cyclic
knocking noise from the engine and possible engine failure.
Some 2010 Ford Transit Connect vehicles may exhibit a thumping or
knocking noise from the rear when braking.
Not exact matches
For the soundtrack: some well - worn spooky creaking,
knocking, walking
noises and ominous random sounds (one incongruously resembling distant helicopters circling) of the sort you can download free
from the Internet.
I have a 2002 BMW E39, the car gives a
knocking noise when braking, which can be felt and heard
from the front.
I've heard many such
noises caused by worn bushings, and missing caliper shims or if you have Drum Brakes in the rear; a loose spring - A loose spring could be loose and during slow rotation you will hear it
knock as the spring slaps
from one side to the other (front to rear) and the other bracket tries to operate but will not, and the bracket that is working will hit against the tip of the other one as you hit the brakes because both brake brackets are not moving at the same time and one of them is raising off / away
from the back plate and slams back down on the plate again.
Having a
knocking or rattling
noise coming
from the suspension while driving over bumps?
If you hear a
knocking noise coming
from the front suspension, have it checked out, as the car might be unsafe to drive.
The service bulletin T - SB -0087-09 for the 2009 Corolla / Matrix describes a problem where a brief
knocking / rattling
noise from the 2ZR engine when started cold is caused by a faulty camshaft timing gear assembly (VVT gear).
Watch for
knocking, clunking or rattling
noise from the steering when driving over small bumps or rough road.
What I like best about the IS 350 F - Sport is that, while it doesn't isolate the driver
from engine
noise and bumps in the road, it does a great job of toning down the drone of wheel and road
noise and the worst jars and
knocks of potholes and cracked pavement.
They can't be taken out like normal bad guys, so they have to be
knocked out last
from all the
noise they cause, adding a layer of stealthy strategic approaches.
According to Ken Berman, a service advisor with Ralph Thayer Volkswagen in Livonia, Michigan, if a driver starts hearing abnormal
noises — such as clicking, grinding or
knocking — or sees excessive smoke
from the exhaust, it's important to have them checked out as soon as possible