Just bought my jeep a couple weeks ago , I live in az and today was first time in the year that its raining lol . Well I was driving to drop off my gf at work and on the way back home it started idling rough and kinda sounded like it wanted to stall . I made it home but I was wondering what can it be causing this? When i made it home i went into my garage and after about 5 min the idle was perfect . it Never had this problem till today .

 

It's a 1998 jeep cherokee limited 4.0 242 160k

 

Bad plug wires can cause that.

They're due for plugs, wires, cap and rotor every 30,000 miles.

Rained like a cow peeing on a flat rock up here in Prescott yesterday. Water was running over the sidewalks downtown. Had to find refuge in a brewery. Barely made it out alive. LOL.

 

Haha alright ill try that , just thought it was so weird with the water causin that ! Guess no fun in the mud

 

Go to Napa. Get NGK Copper plugs and their Premium cap and rotor with brass contacts and Belden wires.