Just an update on 5.7 ,6.2 and 6.4litre hemi engine lifter ,camshaft problems.Day after my son looked at a 2014Grand Cherokee srt8 for me the woman owner rang to say the motor had developed a bad tapping noise. Investigation noted the typical destruction noise of the known cam lifter ,cam failure in these engines .This cam /lifter failure is occurring in motors from 25000ks up ,Rams included ,this GC had only 90000ks .According to performance engine rebuilders here and in US the motor has an inherent design fault ie cam too high in block for oil splash and lIfters at wrong angle to the cam.Short term fix full recon motor around $12000.00 or FCA charging much more for long block replacement.long term fix ,none ! FCA very cagey about admitting major problems with these engines