09-11-2024, 09:48 PM
The P0354 code on your Ford is indicating an ignition coil issue on cylinder 4. I ran into this problem on my 2012 Ford Escape, and the car was misfiring pretty badly, especially when accelerating. Here’s how I fixed it.
The first step is to inspect the ignition coil on cylinder 4. You’ll want to look for any obvious signs of damage like cracks or burns. Ignition coils can wear out over time, and when they do, the cylinder won’t get the spark it needs, causing the engine to misfire. If the coil looks damaged, you’ll need to replace it.
If the coil seems fine, try swapping it with another cylinder’s coil. If the code moves to the new cylinder, you’ve confirmed that the coil is faulty and needs to be replaced. If the code doesn’t move, the issue may lie elsewhere, such as in the spark plug or wiring harness.
When replacing the ignition coil, make sure the spark plug is in good condition as well. A bad spark plug can also cause misfires, so it’s worth replacing both the plug and the coil at the same time if needed.
The first step is to inspect the ignition coil on cylinder 4. You’ll want to look for any obvious signs of damage like cracks or burns. Ignition coils can wear out over time, and when they do, the cylinder won’t get the spark it needs, causing the engine to misfire. If the coil looks damaged, you’ll need to replace it.
If the coil seems fine, try swapping it with another cylinder’s coil. If the code moves to the new cylinder, you’ve confirmed that the coil is faulty and needs to be replaced. If the code doesn’t move, the issue may lie elsewhere, such as in the spark plug or wiring harness.
When replacing the ignition coil, make sure the spark plug is in good condition as well. A bad spark plug can also cause misfires, so it’s worth replacing both the plug and the coil at the same time if needed.