Q: Dead cylinder

asked by on

There is a dead cylinder, a valve is not closing, and there is low compression on the other head.

If there is a stuck exhaust valve, that head needs to come off for a closer inspection. I would look into the low compression on the other head first. Perform a compression test, but also a leak-down test; you want to know why the compression is low before removing the head. If the issue is with a piston ring, or cylinder wall, you’ll want to remove the engine for replacement or repair. If it is also head-related, then remove both heads for inspection. If you would like to have this repaired, consider YourMechanic - our mechanics provide diagnostics at your home or office.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Dead cylinder

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: DTC: P0171 and DTC:P0174

A number of things may cause code P0171 and P0174 to be triggered. As the codes indicate, this means there is a lean fuel condition which may be caused by a lack of fuel supply or in some cases, a...

Q: What's causing the truck not to start i cut the anti theft wire while installing my radio

The anti theft system cannot be disabled on this vehicle. If you cut the wire for the system it should be restored to normal if you reconnect it using a good quality connection. If system is still activated after reconnecting...

Q: Why does my rpm rev up but the car doesn't accelerate

Hello there, many faults will cause your RPMs to increase but the car not to accelerate. This is called a slipping clutch and happens when power is applied when in gear. There are several causes for a slipping clutch; the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.