Common questions

Why is water on my spark plugs?

Why is water on my spark plugs?

The only place water can get into a sparkplug housing is from inside the cylinder. If it is water on the firing end of the plug then you have a head gasket or cracked cylhead or cracked bore or if a sleeve engine a porous bore.

Why do I have water in my spark plugs?

The spark plug boots attempt to seal the openings.” The Grand Marquis uses the SOHC 4.6 V-8. It DOES NOT have spark plug wells in the cam covers. Water in the spark plugs makes no sense. Are you sure that’s how they phrased it? If so, you need a second opinion from a reputable shop.

Can a faulty O2 sensor cause faulty spark plugs on driver side?

Also if you are jumping on the highway without letting your car warm up, your spark plugs can actually shatter. When an O2 sensor goes bad the ecu knows it and ignors it so only enextended driving period may cause the plugs to foul but certainley not in the short run .

Where are the spark plugs located in a Grand Marquis?

“This engine design places the spark-plugs down inside deep wells in the cylinder heads. The spark plug boots attempt to seal the openings.” The Grand Marquis uses the SOHC 4.6 V-8. It DOES NOT have spark plug wells in the cam covers.

Can a faulty spark plug cause a faulty ECU?

If signal is faulty – ECU must be working in safe mode. That is why your check engine lamp was light on. But if you have bad high voltage wires (plugs – coil) then high voltage jumps through any weak points and can damage and even solder parts. It also can damage ECU and its electronic parts like condensers.

Can a spark plug be filled with water?

It most certainly does have the sparkplugs down deep in wells in the valve covers. In fact, I had a 1999 Grand Marquis that had the intake manifold crack at the back where one of the heater hoses came out. It filled the #4 spark plug well with water and caused a misfire.

Why do I need to read my spark plugs?

When reading spark plugs, you will likely find one of the following conditions: Examining your engine’s spark plugs can give you an idea of how the engine is running. You can do this as part of the routine maintenance of your car, ATV, lawnmower or boat, or if you suspect something is wrong with the engine.

What causes spark plugs to get wet and foul out?

According to AA1Car.com, this occurs when the spark plug fails to fire, or fouls out. This can be caused by a number of variables, such as engine flooding, or excessive moisture build up. Failed vehicle starting attempts eventually lead to wet spark plugs, according to E3 Spark Plugs.

Why are the spark plugs on my car not working?

This can lead to engine flooding, which in turn can soak the plugs so they’re unable to form any kind of spark to start the engine. This often happens in cold weather conditions, when spark plugs that are previously worn or fouled require a higher voltage to ignite the engine.

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Ruth Doyle