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What Teflon coating?

I still use the Mopar oil filters and Penzoil Platinum 0w20 oil. It works for me just fine, I have seen oil filters that were too restrictive cause VVT issues. I don't see issues with 0w30 or 5w30 affecting VVT, but I have worked on the idea that the engine is designed with 0w20 use in mind...

Thanks for the compliment. I do enjoy figuring out how things work, and the cam wear issues in the PUG took a bit more thinking than some things. It does seem odd that some issues show up in certain years and are uncommon or even unknown in other years, but that is why I came to the conclusion...

Since your engine has lasted this long without any oiling related failure, I would continue to do the same thing. In the forums, it amount common to read about failures so often that people get the idea that failure is inevitable. It is not, as your experience shows. Also, the oil pressure...

The oil spray holes could be "blueprinted" to "aim" the oil flow, but in an otherwise stock engine it probably wouldn't be worthwhile. Just checking each exhaust rocker spray hole for interference is more than most techs would ever do, especially on a warranty repair. If the holes are clear...

Back in the day, whenever I built a small block Mopar for high performance use, I had a modification that I made to the oiling system to guarantee that the timing chain received enough oil to stay well lubricated. I had found that my timing chains were wearing enough to allow the cam to retard a...

When running in high lift mode, the oil pump is in high volume mode as well, so there is a considerable increase in oil pressure and volume to be sprayed on the intake cam. This would take care of the high lift mode causing an increase in pressure (mechanical pressure that produces friction)on...

The VVL rocker arms are oiled by oil sprayed from the exhaust rockers arms on both banks. All the rocker arms of both types (VVL intake and exhaust) are the same, there is no left intake rockers or right intake cams . There are two factors in oiling the high lift rockers, and how they last or...

I did read the title, and saw the announcement on a news site. I just doubt that the manufacturers will drop ESS. Remember that Jeep is owned by a European company, that doesn't care what Americans want. Also, this announcement is just one administration reversing a rule. Four years from now...

Experience and knowledge (not opinions or feelings) should be the base for people to diagnose problems, real or imagined. When I diagnose a problem, my approach is to KNOW what has failed, or hasn't failed, before prescribing the fix. I have seen many guessed "fixes" fail because the tech...

Experience and knowledge (not opinions or feelings) should be the base for people to diagnose problems, real or imagined. When I diagnose a problem, my approach is to KNOW what has failed, or hasn't failed, before prescribing the fix. I have seen many guessed "fixes" fail because the tech...

I realize the ESS is one of "third rail" subjects in this forum. Like oil choices, everyone has an opinion, also, many opinions are not based on facts but on emotions. With that said, I will give my two cents worth. I have worked on the 3.6 since the original Pentastar came out. After...

I never bothered to keep written records of failures in different engine families, but my recollection is that other than the rare high lift failure to release (going into the normal low lift mode where these engines spend most of their running time), the PUG engines were absolutely first rate...

The early PUGs almost never saw a true high lift rocker and cam lobe failure of the type that we see in the '20 and up PUGs. In fact, I can't remember even ONE rocker and lobe failure in the '16-'19 PUGs. What I did see was the high lift release pin sticking in some rare cases, causing a...

A cam with a "nasty chop" ground in would confuse the PCM, definitely. Plus you would need both cylinder banks to have matching "choppy" camshaft. But if someone really wanted to do the work to develop the program, a special tune could probably be developed to change cam timing at idle to give...

I have made it a habit to use OE parts. Working in the Jeep dealership makes it cost effective for me to stay with OE parts. I especially don't want to deal with aftermarket sensors. About 20 years ago, it was not uncommon to get a towed in vehicle that "won't start, had a DTC for the crank...

My only concern would be that the cam is properly ground as far as being in time with the phaser and the tone wheel. I recently saw an issue with an aftermarket 3.6 right intake cam that was ground out of time. The tone wheel and the phaser were in time with each other, which prevented the PCM...

It is common for there to be a small misalignment on the bed. But loosening the bolts is easy enough, it is actually getting the bed even side to side and the gap between cab and bed even that takes a bit of doing. There is a plastic alignment dowel at the rear of the frame, near the left rear...

I haven't caught any mosquitoes yet with the Sunrider open, but I did catch a bird last year. A cardinal flew into it and died from the impact.

Leave the muffler and the hole. The hole is there by design, it allows water to drain from the exhaust system.