Good question. My 4 cyl Ford Ranger has 8 plugs so I checked out why-- the answer is, the second set has nothing to do with how the engine runs, it is there to burn more of the excessive gasses so less are dumped out and cleans up emissions. :>) Regards, Fullait
The number of spark plug in a 4-cylinder engine depends on the type of engine you have. Some engines only have four spark plugs on the intake side for the ignition of the fuel. Other engines have eight spark plugs, four on the intake side to ignite the fuel and four on the exhaust side to ignite the exhaust fumes.
Attached to the engine!! If the engine is transverse mounted, some may be in front and the others closer to the firewall. If the engine is mounted inline, the plugs will be on the left and right sides of the motor.
No With some exceptions in the 1950's and before. Some early diesels started on gasoline with spark plugs and then switched to diesel when the engine was warmeed up.
Some Volkswagen models actually came with a diesel engine. Others have spark plugs located under the distributor cap. Once the distributor cap is removed replace the spark plugs one by one as to not get them crossed.
Mine were in the glove compartment, in a box labelled "spare spark plugs". (Have you checked there?) There may be some others in the engine compartment, but I couldn't find them on my diesel version.
No, some parts do not work well if oiled, e.g. spark plugs in a petrol engine.
It depends on what engine you have. On some you have to remove the housing on the top of the engine which contains the coils etc.
Spark Plug RemovalAs far as the plugs are concerned, it doesn't matterwhether the engine is hot, warm, or cold.However, from the standpoint of safety and comfort of the person removing and replacing the plugs, it is best to do when the engine is cold.Working on a hot engine can result is some nasty thermal burns to your fingers, hands, and forearms!!!!!
Depending on the model some 1998 models have glow plugs like a diesel engine you may want to look into that before you waste time and money on spark plugs. On the 4 cy. engine, the spark plugs are accessible from the top of your engine. There is a face plate on the top of the engine held on with four screws, pull this plate off and you'll see the plugs. This confused me for a while too, as I was looking on the front and rear sides of the engine.
4, one for each cylinder. There are also some engines, (for instance, the early 1980's Datsun 2000R, 2200R and 2400Z), that have 2 spark plugs per cylinder.
How long spark plugs last depends on the brand of spark plug and the condition of the car. In a well maintained car, some spark plugs will last from 3 to 7 years.
Depends on the type of spark plugs. Factory plugs around 70 - 100k depending on the condition of the plugs. I would replace the spark plugs out with some AC Delco iridium plugs they will last you 100k+.