The PML 42RLE aluminum transmission pan is the way to prevent the dreaded transmission light.
Never had another Transmission light since.
https://yourcovers.com/pml-chrysler-dodge-42rle-deep-transmission-pan.html
The ATF+4 fluid will stay much cooler !
See Post # 10 in this link...
If you take a photo from rear of Jeep, & then look above at the rear differential cover, you will then see the pigtail with 2 wires inside the split loom tubing.
The rear differential speed sensor pigtail wiring, is responsible for rpm & tach issues. Needs to be either replaced or inspected for chaffed or broken wires.
Not that I can find the link, but 2011 KK Jeep liberty FSM mentions the correct Mopar tool for measuring the fluid level correctly.
It is based upon temperature & other perimeters.
The dealer or 2011 parts fiche may mention the shorter temporary correct dipstick part number.
I'd consider a flush and ensure you utilize ATF +4 transmission fluid.
In or around 2003 all KJ's came with ATF+4 installed by factory for power steering.
in post above you stated "Used the dealer brake fluid, (always) "
I'm sure you meant power steering fluid...?
2002 KJ's came with power steering fluid, is your KJ running with this or ATF+4 ?
Do you see any leaks around pump or lines caused by worn out seals or o rings?
Could it be that your 2002 KJ has air entering into the system via the power steering lines?
Have you ever added power steering fluid?
Note: With the 2002 KJ, most have been converted to red ATF+ 4 transmission fluid...
This topic has been discussed & basically the 4.7 does not fit into the engine bay without a huge amount of $ and modifications.
There is a major amount of knowledge required to make the new computers to work.
You are way better off to simply purchase an 8 cylinder Grand Cherokee.
The 3.7 six...
Went to adjust standard interior rear view mirror, it flew off & bounced into the passenger seat. :rolleyes:
Remounting it was easy, as long as you have the small T-bit driver. I guess some blue lock tight should be applied. o_O
The upper rear brake lights has the same T-bit, so I used some...
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