Can an exhaust leak cause backfire?
Also to know is, what causes an engine to backfire through the exhaust?
"Backfiring" is usually caused by a spark plug "sparking" when it isn't its turn and the exhaust valve is open. A sticky or burned exhaust valve can also cause some backfiring out the exhaust. Having timing that is too late (retarded) can cause this same thing sometimes if your engine is running too rich.
Similarly, can an exhaust leak cause popping? If the popping sound is more rhythmic and occurs more frequently as you rev the engine, you may want to look for an exhaust leak. A blown exhaust gasket can cause some pretty loud sounds from that area, but it will always be louder and faster as you rev the engine higher.
Keeping this in view, can an exhaust leak cause misfires?
Lean exhaust code and misfire codes set on the bank with the exhaust leak present. The exhaust leak did not cause an immediate misfire. But it is the root cause of the resulting mayhem. However, if the leak is instead in the INTAKE manifold, the answer is an emphatic YES…
Can a backfire damage an engine?
An engine backfire occurs whenever the air-fuel mixture in your car combusts somewhere outside the engine's cylinders. This can cause damage to your car's exhaust or intake if left unchecked -- and it also means that your car's engine isn't making as much power as it should, and is wasting lots of fuel.