(Posted on Aug 27, 2018 at 05:26AM by Patrick Wensink)
Dear Patrick,
I remember my dad changing the spark plugs on his cars all the time. I’d like to do it on my new Nissan Maxima, but I don’t even have a clue of when to try.
-Sandra
Hi Sandra,
My father was the exact same. Swapping out plugs is one of the simplest ways to keep your engine operating smoothly. Sadly, it’s become a lost art. Let’s change that! Here are some signals to watch for.
The car’s gas mileage has started to sag. When they get dirty they do not effectively burn fuel, which ends up costing you at the pump.
The motor wheezes and coughs upon turning the ignition. They provide the spark (pun intended) needed to get all the gears running under the hood. When just one gets filthy or bent, you’ll know it with a quick twist of the key.
Similarly, when the plugs have gone south, you won’t be able to accelerate as well. If things aren’t igniting the way they should, the throttle will seem a little depressed.
The good news is that swapping out a fresh set of spark plugs fixes these problems. Anyone with a wrench and some patience can be on the road to better automobile performance!