Can a car run with bent valves?
no it will not idle if the valve was bent.
What are signs of a bent valve?
The symptoms of bent valves include an engine that won’t start, an erratic engine when idling, lack of engine power, a knocking noise from the engine and excessive exhaust fumes. Engine valves are responsible for controlling the fuel delivery and gas removal in your engine.
How do you know if your valves are bad?
Ticking or popping noises are the most common types of noises you will hear when you’re having trouble with your valves. Many times, you will hear this ticking before you notice other problems. This noise gets louder and faster as the engine is accelerated.
What happens if you drive with a bad valve?
Unfortunately, yes you can do more damage by continuing to drive with damaged valves. Damaging the catalyst can cause it to break apart internally, leading to plugging up the exhaust and causing an even more severe loss of power, which will make the car very difficult to drive.
What is the misfire code on a Subaru Forester?
The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 4 into the exhaust. Mileage may suffer as well when your Forester has P0304 as well. P0304 is a cylinder specific misfire code, which means that Cylinder 4 is misfiring and causing the code.
What causes the p0304 trouble code on a Subaru Forester?
There are quite a few things that can cause the P0304 trouble code to trigger the Subaru Forester. Here are the most common problems that will throw the code. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs – Spark plugs are one of the most common causes of P0304.
What does a cylinder 4 misfire code mean?
P0304 is a cylinder specific misfire code, which means that Cylinder 4 is misfiring and causing the code. An important thing to understand when finding the location of Cylinder 4 is that it’s going to be the 4’th cylinder in the firing order of the vehicle, and not the 4’th cylinder that you might see when looking at the engine.
What are the 4 Subaru models most likely to need head gaskets replaced?
They have identified four popular Subaru models with the potential to have this engine issue. CR says the 2001-2009 Subaru Forester, 2001-2009 Subaru Outback, 2006-2008 Subaru Impreza, and the 2006 Subaru Baja are more likely to need the head gaskets replaced than other models. Why do head gaskets fail on some Subaru models?