Finally got my Jeep Grand Cherokee repaired. I found a local Chrysler dealership. This was a journey because the first visit to the dealership ended with, “we can’t find anything wrong”. The same thing happened with a trip to a second mechanic. Nobody acknowledged the Jeep had an issue until after I did research and suggested it might be a failed rocker arm. After suggesting that and taking it back, the second mechanic acknowledged the issue as being a lifter. That’s related to the rocker arms. But said he wouldn’t do the work. He didn’t have the necessary equipment and manpower to do that job at his shop.
I returned to the Chrysler dealership. Now they seem to know the issue. They took a while, but finally did a full diagnostic and confirmed I had a failed rocker arm, lifter, and camshaft. They replaced all lifters, rockers and damaged camshafts. I came out paying a little over $2,800. Cheaper than a new car.
Now to dig into the delayed starting and turning over when cranking. I didn’t think that was related to the knocking noise. But I had hoped it would go away with this repair. No such luck. Well, at least the knocking noise has stopped. Time to start learning about the starter mechanism.
October 25, 2023 projects jeep repairs cam rocker lifter engine