Jett wrote:
So after many miles you don’t consider it reliable, what are the main areas that you’ve found lacking? I know about the tyranny issues but they seem solvable with about 1200$ in parts, which isn’t too awful imo. I’ve read about a few thrown rods but the engine seems to be pretty solid after you get the silly stuff off it like EGR and the funky T stat.
The elephant in the room, the Exhaust Valves!
You can do every normal maintenance service and upgrades to this engine like timing belt, pulleys, idlers, water pump, rockers, intank lift pump, ProVent, and most anything else you can think of.
But if you like me are still running on original exhaust valves, it is a ticking time bomb. And you do not know
if or when it might drop a valve.
Some have gone well over 200k with no reported dropped valves, and some have dropped one between 100k - 150k. Unfortunately here is no set age or mileage determined.
Some have simply had to replace the head with new valves when this happens, and some have lost the head & piston, and some a head & piston and the piston liner, and a few worse case have had the valve go through the piston and then out the side of the block totally destroying the engine. $$$$$
One reason I do not think it is good idea to routinely test or exceed the operational design parameters of this engine!
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount98 Dodge Cummins 24 Valve