If you have a cylinder specific trouble code, there is an easy way to tell if it is the spark plug or coil pack. Modern vehicles can and do foul plugs, particularly when cylinder deactivation technology is involved (as was the case in this example). This particular plug was from a 5 year old Honda with 60,000 miles. On the left here you can see a fouled spark plug. Do they look like they are in good shape? If you are going to diagnose a misfire from home, start with the spark plugs. For example, P0301 is a misfire in cylinder 1. You’ll more than likely have P0300 (Random Misfire) or you’ll get P030X, where the misfiring cylinder number is represented by the X. With a misfire, you will almost certainly get a check engine light. If any of these ignition components fail to deliver enough spark, your vehicle will experience a misfire. If it is an older model, it’ll have a distributor and coil instead of coil packs.
A vehicle’s ignition system consists of spark plugs, coil packs, and maybe plug wires. Vehicle Speed: A Misfire can be felt at any speed, but is most noticeable at low RPM.Ī misfiring engine is one of the most common reasons your Neon will shake when accelerating. They are presented in a somewhat logical progression. There are quite a few reasons that your Neon would shake when accelerating. For this reason, we’ve tried to include the most common speed associated with the different shaking causes listed directly below.ĭodge Neon Shakes When Accelerating: Causes The speed of the vehicle can help even more.įor instance, a vehicle that shakes when braking is going to have almost no overlapping causes with a vehicle that shakes when accelerating. If you’ve figured out that the problem is only happening when you are accelerating your Neon, that really helps narrow the problem down. Different problems are going to show themselves when driving at different speeds. Vehicle speed matters when you feel a vibration. While the vibration can be annoying, it is often indicative of a serious problem. If your Dodge Neon is shaking when accelerating, it’s something that should not be ignored. One of the more common issues that can occur is a vehicle that shakes when accelerating.
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