Which spark plug correlates to the third cylinder?

The firing order for the 2015 Subaru Forester 2.5i is 1-3-2-4. This means that the spark plugs will fire in the following sequence: first cylinder, third cylinder, second cylinder, and fourth cylinder.
The firing order of an engine refers to the sequence in which the spark plugs ignite the fuel in the cylinders. The firing order is determined by the engine's design and is important for ensuring that the engine runs smoothly and efficiently.
In a 4-cylinder engine like the 2015 Subaru Forester 2.5i, the cylinders are typically numbered from left to right, starting at the front of the engine. The firing order for a 4-cylinder engine is typically 1-3-2-4 or 1-2-3-4, with the spark plugs firing in a sequence that alternates between the left and right sides of the engine.

The cylinder head!!!,, ..., sounds like the valve stems seals are not working..or they forget to put them in..TAKE IT BACK!!!

Definition of Diagnostic Trouble Code P1345 Audi: Ignition Coil Power Output Stage 3 Short to Ground BMW: Misfire Cylinder 2 with Fuel Cut-Off Buick: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Cadillac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Chevrolet: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Ford: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) GMC: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Isuzu: Crankshaft Position - Camshaft Position Correlation Kia: No SGC Signal (1.6L) Lexus: Variable Valve Timing / CMP Sensor Range / Performance Lincoln: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Mazda: Cylinder Discrimination Signal (from CMP sensor) Mercury: Cylinder Discrimination Signal (Signal From Camshaft Position Sensor) Oldsmobile: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Pontiac: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Saturn: Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Toyota: Variable Valve Timing / CMP Sensor Range / Performance Volkswagen: Ignition Coil Power Output Stage 3 Short to Ground

Cylinders 1-2-3-4 are on the passenger side. Cylinders 5-6-7-8 are on the drivers side. Number seven is the third cylinder back on the drivers side. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

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8 spark plugs and no on the seat no place for seatbelts or seat

possible causes of oil fouled spark plugs include bad/worn valve stem seals, worn or scratched cylinder walls, broken /leaking piston rings

change the coil for the third and forth cylinder and that should fix you right up.

Firing order is 1-8-4-3-6-5-7-2. Move #1 cylinder to where piston is up, and on the compression stroke (TDC). Easiest way to do this is with a compression tester on the #1 cylinder - rotor cap OFF. When you see the pressure build...you're on the compression stroke.
The rotor cap should be at the #1 cylinder firing position...simply re-install the rotor cap at this time - noting which button is #1.
Starting at #1 install the wire for the #1 cylinder onto the rotor cap...the next button (clockwise) on the cap should correlate to #8; the third button on the rotor cap is, cylinder #4..and so on.
work your way around the rotor cap until you have all 8 cylinder wires in place...ignition coil wire in the middle button.

Engine should start and run.

Hope this helps.

The third cylinder is the third spark plug wire from the passenger side of the car. An easy way to tell if this is the cylinder that is misfiring is to pull up the spark plug wire using insulated pliers with the car running. If there is no change in idle speed then that's the dead cylinder. If when you pull out the spark plug wire you see sparks shooting all over from it (a very common problem) then you need a tune-up.

start with the side of the engine that has the cylinder closest to the radiator.
that first cylinder on that side is number one.from there back it is 3 5 7 .
so thats 1357.it would be the third one back.
on one bank is 1 3 5 7 and on the other bank is 2 4 6 8 just start with the cylinder closest to the front of the truck.