This 2001 Jeep Wrangler 4.0L is on its second engine at 379k miles.
According to the owner, it runs like GARBAGE...especially at idle and under acceleration.
It did make it to PHAD under its own power from 4 hours away.

Local shops have been STUMPED after replacing spark plugs and coil pack didn't fix anything.

Cranking it over, sure sounds like at least 1 cylinder is very low on COMPRESSION...
Let's diagnose this Jeep 4.0L and see if it can be repaired, or if it needs ANOTHER engine?!

PHAD PRESSURE TRANSDUCER:
http://www.pinehollowdiagnostics.com/...

IVAN'S PICO WAVEFORMS:
https://drive.google.com/drive/folder...

TESLONG NTS 500 BORESCOPE:
https://www.amazon.com/dp/B07SQ4FLYX?...

THINKTOOL PROS:
https://www.amazon.com/dp/B08XXWHQVJ?...

Enjoy!
Ivan