Trying to figure out how to use this but i have a 2003 dodge ram 1500 4x4 5.9 gas just bought it yesterday, no noise drove perfectly then. Now ticking on start up almost every time i start it and at high rpms ticks for a couple of seconds. Im not too sure whats going on but it does have high miles 143000 so maybe vaulves springs lifters timing chain?

 

Sounds like a sticky lifter. I would start by testing the oil pressure with a mechanical gauge to see what kind of pressure you actually have.

 

What weight oil? A dose of Sea Foam may provide some benefit. Could be the timing chain, but many other things are higher on the list.

 

I am going to test oil pressure this weekend with a mechanical gauge and it has a mobile 1 sticker in the top left winshield with 3000 miles untill the next oil change. I also want to add that today I floored it and one lifter clicked loudly and the motor hesitated at the same time.

 

Oil Pressure is fine i ran some chemtool and new oil even though it didnt need it! Still ticks at start up so im thinking the heads have to be pulled off and redone!

 

Sorry it took so long to get back at yall. I recently changed my plenum gasket, and still have the problem i narrowed it down to a main rod bearing on one of the pistons. At accel its fine when its not under a load it ticks horribly.