2007 5.7 hemi ticking

[fredsam33]

Recently bought, 87,600 miles. Has a slight tick at idle, switched over to royal purple, but going amsoil after that. has a slight tick at idle, goes away after. Also isnt crazy constant, comes and goes. Doesnt seem to matter on temp but might be a little quieter after warm up. After a 1500 mile trip it didnt do it as much but now that it has been sitting its back. I was just told a valve is about to go(or thats what happened to his buddy) but figured id ask here since you all own them. Thank you for any support.

 

[Marley]

Could also be as simple as an exhaust manifold leak....sounds like a lifter.

If it's a lifter you can run a tank of higher Octane fuel to see if low grade fuel is the culprit.

9 X out of 10 it's just a lifter and not that big of a deal though.

Knocking down low on engine is a problem.

 

[Karlsweg]

Check exhaust manifold for broken bolts.

 

[MADDOG]

In addition to the manifold bolts, just realize that there is a common issue all HEMI owners have found which is affectionately known as "Hemi Tick". I've owned three HEMI powered vehicles and they all ticked.

 

[fredsam33]

Thank you, when i switched to rp the ticking got a little quieter and didnt happen as often, but when i was told about the valve issue i got a little concerned. I figured lifter since the syn oil helped it. And its literally at idle, any higher rpm and it goes away, just new to me becuase ive always had chevys.

 

[Marley]

I've had several 4.0 Jeeps......if they DIDN'T tick, I'd be concerned.

 

[ST-8]

I have long tubes an a comp 260 cam so I don’t hear the tick until I’m at a drivethru where it’s sitting right next to a wall then I hear it. Lil annoying I guess but really doesn’t bother me.