Hello all,
New guy here. I just acquired an 05 KJ with 84K miles. What do I do now?
It seems to be stock other than the renegade lite rack on top that was added.
In the past 2 years the last owner replaced-
Timing chain & water pump
All new breaks
Coil over and shocks
Rebuilt transfer case
Fuel filter and housing
And various other things.
He also mentioned and EGR “block” and unplugged the sensor by the air filter.
What do I do first. EGR delete? Stage 1 or 2
Please help the new guy.
My first goals are longevity and MPG
Thank you
Joe

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Joey
2005 CRD
transfer-case/cross-member rubber mounts
front upper control arms, rear upper control arm, driver's side CVaxle, rear coil springs & shocks, front struts
spider gears and transfer case chain)
fuel head (new upgraded version) and new fuel filter
timing belt, thermostat, water pump, new coolant

First and foremost, read and study the Sam's CRD Noob Guide, it will answer a lot of questions and help educate you about upgrades and modifications for this unique vehicle.

After you have reviewed the NOOB Guide, please feel free to ask your questions or seek advice; there are some very experienced and helpful owners on this forum more than willing to offer advice to try and help you in any area.

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Supporting Vendor and Moderator of LOST
05 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/wwdieselMount
98 Dodge Cummins 24 Valve

thank you!

_________________
Joey
2005 CRD
transfer-case/cross-member rubber mounts
front upper control arms, rear upper control arm, driver's side CVaxle, rear coil springs & shocks, front struts
spider gears and transfer case chain)
fuel head (new upgraded version) and new fuel filter
timing belt, thermostat, water pump, new coolant

Hello, Joe:

You mentioned "And various other things."

What would those things be? There have been some very bad modifications to the CRD engine that were dreamed up by people who have absolutely no idea what they are doing. The inline thermostat is one of them. If you have another thermostat valve in your upper radiator hose, REMOVE IT IMMEDIATELY. This modification greatly increases your chance of an overheat condition, a head gasket failure and a cracked cylinder head.

If your goal truly is longevity, stay away from poorly thought out modifications.

For increased MPG, an engine tune with a matching transmission tune is called for, (if the transmission tune is still available).

You also need to get your engine's operating temperature up higher as North American Liberty CRD vehicles are subject to ridiculous EPA oxides of nitrogen emission regulations. To meet those emissions standards, Daimler Chrysler specified a lower engine operating temperature. The rest of the world gets a 195 degree thermostat; we here in North America get a 176 degree thermostat which is too low for efficient operation of the engine. The end result is lower MPG, loss of power and reliability problems down the road because the engine has a more difficult time burning off the built up pollutants within it.