Skip the auto shop - Our mechanics make house calls

Q: Cylinder has no compression

asked by on

One of the cylinders has no compression.

A: Loss of compression in a cylinder is a sign...

Loss of compression in a cylinder is a sign of physical/mechanical damage such as; a bent intake or exhaust valve, a leaking head gasket. Or possibly a hole in the piston, block, or cylinder head. The combustion chamber could also leak from the spark plug hole if the spark plug wasn't installed properly. You can get a proper cylinder inspection by a technician in order to find the source of this issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Clutch sticking to floor

It does sound like you have a hydraulic problem. First, I would check for external leaks. If none are found, the problem could be air in the system. This could be the result of not bleeding the system properly after...

Q: Won't start, so many possibilities can't figure out why

It is quite likely that the old battery was too weak to turn the engine over which is why it just clicked when trying to start. The new battery has plenty of power to turn the engine over which is...

Q: Timing chain misaligned

It is possible that the timing chain has stretched over time and skipped a notch and misaligned the timing marks. I would have a technician, from YourMechanic, come out and inspect and install a new timing chain and sprockets for...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.