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Jim
Grant has been working in the automotive industry for over twenty
years. In addition, Jim is an ASE Master Technician with advanced
L/1 certification. He works as manager and technician in his
family's automotive business in New Hampshire. He writes weekly
automotive consumer columns and is editor of an automotive newsletter
that is circulated throughout North America. |
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Jim Grant's Tech Tips '99 Nissan Maxima, Brake Groans
Q:
During the last couple
of weeks, my ’99 Nissan Maxima emits a loud groaning noise whenever
I let up on the brake after stopping. Once I press the accelerator, the
noise goes away. I was told a couple of months ago that my rear brakes
were getting worn. Is the noise related to my brakes or do I need to get
it checked out separately?
- Eric T.
Q:A
brake inspection is in order. The noise you’re describing almost
sounds like a brake is not releasing fully. There are some common problems
that are known for creating groaning brakes on brake pedal release. 1.
Brake pads can stick or bind in their holders due to rust build-up. The
brake caliper has enough hydraulic power to apply the brake pads. The
problem is the brake pad does not move away from the brake rotor as easily
as it should when the brake is released. A good wire brushing and lube
in the correct places is the fix. 2. Brake calipers must move freely on
their slides. Most braking systems today use what is called a floating
caliper design. It is not uncommon for rust to form on the slides or guide
pins for the brake calipers. This creates a condition that is similar
to the first mentioned rusted brake pad problem. But in this case, part
of the brake caliper is holding the brake pad against the rotor. The result
is pretty much the same. A good cleaning, lube and some new brake hardware
may be all that is needed to stop the brake groans.
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