What are the spark plug wires all about?
What is the Ignition Cable (Spark plug wires) all about? The ignition cables, also known as “spark plug wires” are part of the ignition system. They transfer the spark from the distributor or ignition coil to spark plugs that ignite the air-fuel mixture, starting the engine. Over time, the cables can get weak and break down.
How many ohms are in a spark plug?
I just found this stating that the wires should be 1,200-1,500 ohms per foot. So 2,400-3,000 with my 2 foot wires. Cornered Boots: 2.38, 2.37, 2.50, 2.13 Straight Boots: 3.01, 2.16 Old Spark plug wires (Measured in 20K Ohms setting): Straight: 2.95
How do you check the spark plug wire?
Step 1: Park your vehicle and allow the engine to cool. Step 2: Remove the spark plug wire at the spark plug. Step 3: Remove the spark plug wire. Step 4: Unclip the spark plug wire from the retaining clips. Step 5: Visually check the spark plug wire for damage. Step 6: Check the resistance of the wire. Step 7: Apply the boot grease.
What is the resistance of a spark plug?
Spark plug wire resistance. If you have a misfire all of the time, remove one one wire at a time with the engine running, with insulated pliers. When removing a wire which only makes a little or no differance to the engine RPM compared to the others will be the faulty wire. The actual resistance of any cable is down to its length,…
What can a bad spark plug wire do?
A bad spark plug wires can affect the smooth flow of electrical current which can cause a rough engine idling. Poor fuel economy in a car is a worrisome situation. There could be other reasons like a catalyst issue. But, a bad spark plug wire is a suspect.
Step 1: Park your vehicle and allow the engine to cool. Step 2: Remove the spark plug wire at the spark plug. Step 3: Remove the spark plug wire. Step 4: Unclip the spark plug wire from the retaining clips. Step 5: Visually check the spark plug wire for damage. Step 6: Check the resistance of the wire. Step 7: Apply the boot grease.
When to replace a spark plug in a car?
If you are certain it is not a battery issue, then you should replace the spark plug as soon as possible. Engine misfiring is one of the known symptoms of a bad spark plug wire in a car. This usually occurs when there is incomplete engine combustion. Engine misfires, because the cylinders are not working or firing fine.
I just found this stating that the wires should be 1,200-1,500 ohms per foot. So 2,400-3,000 with my 2 foot wires. Cornered Boots: 2.38, 2.37, 2.50, 2.13 Straight Boots: 3.01, 2.16 Old Spark plug wires (Measured in 20K Ohms setting): Straight: 2.95