Hi all, so I've been chasing a cold start tick I've had in 4.0 for quite awhile. It's not too bad but it does get annoying but never lasts for more than a minute of driving.
The 4.0 only sees PHM or PYB.
At one point I was able to (by fluke idk) solve it even in 16*F weather with PYB 10w30 5qt with 1qt of 5w30 and the stock OEM MOPAR-MO090. I've always used the TG16 or MOPAR filters, whichever one I felt like picking up over the past 4 years of ownership of the Jeep.
Recently I was toying with the idea (after numerous people who said they've had success) with running a slightly longer oil filter like a TG8A, FL1A, 51515, PL30001 etc. So I decided to try the PYB combo again but this time use the TG8A for gits and shiggles. The start up tick was more audible and lasted much much longer. Even while driving with the engine warm once the RPMs got
So I thought it might be the longer filter. I unscrew the filter and some oil drained out unscrewing it (oil filter on the 4.0 is mounted sideways to the block, horizontal... that's the word lol). I look at the can and i can see the bottom metal. I thought that was weird as I've always seen oil at the bottom of the filter every oil change. I shrug it off and put the stock sized TG16 back in and by the time I got the TG16 on and double checked oil level I noticed that TG8A now had oil on the bottom. The TG16 was still ticking cold start but the ticking at hot idle disappeared... or so I thought. It didn't happen as soon but if I let it idle long enough the horrible ticking would eventually come. Again, weird as I've never had this happen but the plus side was that it no longer ticked at hot when the RPMs reached
I decided to buy the FL1A and the Mopar stock MO-090 as a backup. So I unscrew the TG16 and some oil drains out when unscrewing the filter as usual, and again I set the can vertical and I could see the bottom of the can with no oil. What the heck, man? So I fill the FL1A and put it on, again double checking the oil level and I noticed that that the TG16 now had oil on the bottom of the can.
The FL1A is still in the Jeep and has been for couple of weeks as cold start tick has tremendously shortened (not even making it out of the development but we will see how it does in the winter when it's a tad worse lol) and I've never heard my 4.0 so quiet when hot at idle.
So what I'm wondering is, was there anything wrong with these last two TG filters that when I unscrewed them I could see to the very bottom of the can or is it something with my Jeep? I've never seen this happen before as usually when I unscrew the filters a little of oil drains out but when I look in the can there was always oil in it, never being able to see the bottom.
Just really confused at this point wondering why all of a sudden this happened.
Thanks
The 4.0 only sees PHM or PYB.
At one point I was able to (by fluke idk) solve it even in 16*F weather with PYB 10w30 5qt with 1qt of 5w30 and the stock OEM MOPAR-MO090. I've always used the TG16 or MOPAR filters, whichever one I felt like picking up over the past 4 years of ownership of the Jeep.
Recently I was toying with the idea (after numerous people who said they've had success) with running a slightly longer oil filter like a TG8A, FL1A, 51515, PL30001 etc. So I decided to try the PYB combo again but this time use the TG8A for gits and shiggles. The start up tick was more audible and lasted much much longer. Even while driving with the engine warm once the RPMs got
So I thought it might be the longer filter. I unscrew the filter and some oil drained out unscrewing it (oil filter on the 4.0 is mounted sideways to the block, horizontal... that's the word lol). I look at the can and i can see the bottom metal. I thought that was weird as I've always seen oil at the bottom of the filter every oil change. I shrug it off and put the stock sized TG16 back in and by the time I got the TG16 on and double checked oil level I noticed that TG8A now had oil on the bottom. The TG16 was still ticking cold start but the ticking at hot idle disappeared... or so I thought. It didn't happen as soon but if I let it idle long enough the horrible ticking would eventually come. Again, weird as I've never had this happen but the plus side was that it no longer ticked at hot when the RPMs reached
I decided to buy the FL1A and the Mopar stock MO-090 as a backup. So I unscrew the TG16 and some oil drains out when unscrewing the filter as usual, and again I set the can vertical and I could see the bottom of the can with no oil. What the heck, man? So I fill the FL1A and put it on, again double checking the oil level and I noticed that that the TG16 now had oil on the bottom of the can.
The FL1A is still in the Jeep and has been for couple of weeks as cold start tick has tremendously shortened (not even making it out of the development but we will see how it does in the winter when it's a tad worse lol) and I've never heard my 4.0 so quiet when hot at idle.
So what I'm wondering is, was there anything wrong with these last two TG filters that when I unscrewed them I could see to the very bottom of the can or is it something with my Jeep? I've never seen this happen before as usually when I unscrew the filters a little of oil drains out but when I look in the can there was always oil in it, never being able to see the bottom.
Just really confused at this point wondering why all of a sudden this happened.
Thanks