Hey everyone, new to the forum hence why I’m posting here. I own a 2014 Nissan Frontier pro-4x with around 70k miles that has never let me down... however, it has recently started to take a little more time to start, has a slight leak when it’s running that goes away a little after it’s stopped (A/C?) and I can feel the car shake when I’m stopped and at idling speeds. Shifting into neutral helps the shaking very slightly and I’m thinking I might need new sparkplugs but it’s just a guess. Any help is greatly appreciated, thanks!