Check Engine Light Unmasked Old Spark Plugs as a Suspect

Changing spark plugs could be a good idea when… · Worn plugs can trigger your check engine light to come on. · This can cause your engine to misfire and your ... However, bad spark plugs can also cause your vehicle to not crank. Over time, the electrodes on a spark plug gradually start to wear out. A ... A broken, old or dirty spark plug can cause the engine to misfire. If the problem is completely ignored or you continue to drive, this can spread to the spark ... ... codes will only appear to a mini mechanic or dealer. When car is ... and what might cause the electrodes on a plug to become so badly ... Old spark plugs or fried spark plug wires can also signal your check engine light to turn on. Unfortunately, it's hard to tell if this is the ... I've seen some sites saying it's a bad evap purge valve but can putting wrong spark plugs in really cause that? I'd never had any issues ... A bad spark plug wire can and will make your check engine light turn on. As its name implies, a spark plug wire transfers electricity from the ... And now that we have computer-controlled systems, your vehicle comes equipped with either one ignition coil for each spark plug or every two ... A problem with either your spark plug wires or the spark plugs themselves could cause your check engine light to come on. Ignoring this ... You may have damaged the spark plug wires when you pulled them off the old plugs, especially if you were not gripping the boots. You may need to ...