Home › Forums › Stay Dirty Lounge › Common Problems/Pattern Failures › 5.7L Jeep Grand Cherokee lifter failure 2011 – › Reply To: 5.7L Jeep Grand Cherokee lifter failure 2011 – May 12, 2020 at 9:55 am #955079 EricTheCarGuyKeymaster BTW you’re not suppose to just change lifters on a flat tappet cam. You need to replace the cam and lifters at the same time as they are a matched set.