Intake and Exhaust Valves

What are the symptoms of a bad exhaust valve or bad intake valve? How much will it cost to repair bent or burnt valves? Keep reading to learn the answers to these questions and more.

exhaust valve

What are the signs of bent or burnt valves?

Every car owner should know how to spot the signs of bent or burnt valves. Some of the many signs of a bad intake valve or exhaust valve include:

Engine noise

You may also hear a tapping or ticking noise in the engine if your car has a bad intake valve or exhaust valve. The noise may get louder and faster when the vehicle is accelerating.

Check engine light

The check engine light can turn on for a number of reasons, including damaged intake and exhaust valves. If your check engine light turns on, this doesn’t always mean that the valves are damaged, but it could. You will need to get a mechanic to inspect your vehicle and diagnose the issue.

Poor engine performance

The engine will not have the right amount of compression to operate normally if there is an issue with the intake or exhaust valves. This is why one of the main symptoms of damaged valves is a rough engine operation, especially at idle. The engine will not be as powerful if a valve is damaged, so if your car starts to lose power, this is a sign of a valve problem.

Engine misfire

Bent or burnt valves can also cause your engine to misfire. This means the engine may jerk, stall, or hesitate when your car is in motion. Your vehicle's fuel consumption could also increase if it is misfiring due to a bad valve.

These are some of the many symptoms of a bad exhaust valve or intake valve. If you spot any of these signs, contact a professional mechanic as soon as possible.