The engine in your car is designed
to run balanced to minimize vibration to the passengers. Vibration is the most noticeable
when the engine is at an idle. Several components are designed to help minimize
engine vibration. We have listed some of the most common problems and repairs below.
Car Repair Troubleshooting Guide
Checking Engine Mounts - Engine mounts are used to minimize
engine vibration by isolating the engine from the car frame. These mounts are constructed
by using rubber vulcanized between to metal plates with threaded studs that bolt
to the engine and the frame of the car. When motor mounts become worn they allow
the engine the contact the frame causing a noticeable vibration. Inspect the engine
mounts for integrity, look for any oil, cracks or separation of the mount. Remove
the failed engine mount and replace if needed. For exact instructions how to replace
the engine mounts in your vehicle consult an
auto repair manual.
New Engine Mount (appearance will vary)
Inspecting Balance Shaft Timing - A balance shaft belt is used
inside some designs of engines to counter act vibration created by the natural engine
operation. Many balance shafts are operated by a
timing belt that can break or become
out of correlation with the engine either by a worn timing belt or misalignment
when replaced. To inspect for this problem, remove the timing belt cover and inspect
timing belt marks for proper alignment. All engines are
different, consult a repair manual for exact belt alignment specifications.
Testing Engine Compression - An engine depends on an equal
compression reading in each
cylinder. If poor compression exits in one or more cylinders it can cause a
rough idle condition. To check
for this condition perform an engine compression test to compare readings. Once
a low cylinder has been detected addition internal engine inspection is required.
If further assistance is needed, our certified car repair technicians are ready
to answer your car questions.
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