Where does the fuel smell come from in a rough idle?
Q: Rough idle and there is a raw fuel smell coming from the exhaust. A couple months ago, I saw a slight leak at the top of fuel injector #1, so I pulled the injector and replaced the o-rings.
Why does my car exhaust smell like gas?
Sometimes you may find that the exhaust smells like gas. This is normally a problem with the air and fuel mixture as your fuel injector may be sending too much gas through the engine and not all is burning.
Why does my exhaust smell like rotten eggs?
Two other causes of rotten eggs besides a broken catalytic converter include an engine that is running too hot or a broken fuel pressure regulator. You can easily deal with the fuel pressure regulator by replacing the fuel filter. If you notice a very strong exhaust smell in the car then you probably have a leak in the exhaust system.
Why does my car exhaust smell like cinnamon?
You will normally be able to see antifreeze dripping onto the ground or running down the side of the heater core. Your heater core could also have broken seals. Most of the time a sweet smell, such as cinnamon, maple syrup or butterscotch is an indication that there is a leak in the heater core.
Q: Rough idle and there is a raw fuel smell coming from the exhaust. A couple months ago, I saw a slight leak at the top of fuel injector #1, so I pulled the injector and replaced the o-rings.
Why does my car have a fuel smell?
A leaking fuel o-ring will make the fuel puddle up outside of the injector and give a fuel smell under the hood. I recommend flushing the fuel system with a fuel injection cleaner. If you need further assistance with your engine idle being rough, then seek out a professional, such as one from Your Mechanic, to help you.
Is there a cylinder misfire in wide open throttle?
That stopped the leak but approximately 10 miles into my drive, the car started idling rough and there was a raw fuel smell coming from the exhaust. In wide open throttle, there isn’t an cylinder misfire, but during minimal acceleration and while stopped, there is definitely a cylinder misfire.
What causes a car to idle rough at idle?
A clogged fuel filter stops the engine from receiving the right amount of fuel causing the engine to be rough idle. Fuel filters are often pretty cheap, and you can easily get the fuel filter removed and replaced from a nearby mechanic or do it yourself if you have some knowledge. 6. Dirty Air Filter
Is the EGR valve supposed to run during idle?
However, this EGR valve isn’t supposed to operate during idle, at wide open throttle or before the engine is warmed up. If it runs at any of these times, the performance of the engine is affected.
Why is the exhaust gas recirculation valve on at idle?
The Exhaust Gas Recirculation Valve is a vital emission control device. It allows the exhaust gas to enter into the intake manifold, with the sole purpose of reducing emissions from the motor. However, this EGR valve isn’t supposed to operate during idle, at wide open throttle or before the engine is warmed up.