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  1. Jeep Grand Cherokee & Commander Forums
    2015 3.6L V6 Overland @ 103,000 miles Began hearing a slight ticking noise under the hood for a month or so. Today had the P0304 (cylinder 4 misfire) error code. From what I can read, it looks like this is common on theses engines and is often times the rocker arms getting worn out (starting...
  2. Engines & Drivetrain
    I'm installing the rocker arm assembly on my Jeep Cherokee but I'm having trouble. The rocker arms themselves are crooked and are not resting on the valve stem. The pushrods are seated on the lifters, I've checked, but they are coming close to the cylinder head. The bridge has a crook to it, but...
  3. Engines & Drivetrain
    Do I need to remove the valve head to get to the rocker arms? And how do I go about replacing them?
  4. TJ Wrangler Technical Forum
    I regret doing it already, sending her to the shop instead of giving it a go myself. Without going into excuses for that, humor me. I'm also wondering if driving it with my suspected diagnosis has caused other problems. The shop hasn't gotten back to me yet, but here are my symptoms: This is...
1-4 of 4 Results