I have read on several sites that when bleeding the coolant system the car should remain on an incline (front end up). Is this required or does it help with the KJ? I have an 02 I had a tiny leak in my radiator and sealed that up, but now there is air in the system. Does anyone have tips for doing this?

Here is my understanding of how to do it.

(Engine must be cold)

Loosen the air bleeder valve.

Add Coolant until it starts to seep out around the threads of the plug. Once this happens tighten the plug and continue to add coolant until it reaches the max fill line.


Or

Leave off the radiator cap, start the KJ and let it idle while continuing to add coolant. Do this until it is at the max fill level and can maintain that much coolant. Then turn off the KJ and let it cool. Next replace the radiator cap.

Does anyone see any problems with this?

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L.O.S.T. #31000

'03 KJ Freedom Edition - 4" JBA Coilover Lift w/ 32" Cooper STT PROs
'98 XJ Sport - 6" Full-Traction 4-Link Long Arm - Jeepspeed #2731 (Race Jeep)

DobermanRacing.com - Team Driver
Sponsored by UltRanger & CellTech

My KJ doesn't have a radiator cap...

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'02 KJ Sport V6 4x4
3/8" Clevis lift
Rusty's 2.5 lift
255/70/R16 Fleet Farm All Terrain (yes they work)
Class 3 hitch
Hellas
Police Scanner/CB radio
LOST #: JH061986

Over flow cap* or whatever you may want to call it.

_________________
L.O.S.T. #31000

'03 KJ Freedom Edition - 4" JBA Coilover Lift w/ 32" Cooper STT PROs
'98 XJ Sport - 6" Full-Traction 4-Link Long Arm - Jeepspeed #2731 (Race Jeep)

DobermanRacing.com - Team Driver
Sponsored by UltRanger & CellTech

(1) Tighten the radiator draincock and the cylinder
block drain plug(s) (if removed).

(2) Fill system using a 50/50 mixture of ethyleneglycol
antifreeze and low mineral content water.Fill
pressure bottle to service line.and install cap.

NOTE: The engine cooling system will push any
remaining air into the coolant bottle within about an
hour of normal driving. As a result, a drop in coolant
level in the pressure bottle may occur. If the
engine cooling system overheats and pushes coolant
into the overflow side of the coolant bottle, this
coolant will be sucked back into the cooling system
ONLY IF THE PRESSURE CAP IS LEFT ON THE
BOTTLE. Removing the pressure cap breaks the
vacuum path between the two bottle sections and
the coolant will not return to cooling system.

(3) With heater control unit in the HEAT position,
operate engine with pressure bottle cap in place.

(4) Add coolant to pressure bottle as necessary.
Only add coolant to the pressure bottle when
the engine is cold. Coolant level in a warm
engine will be higher due to thermal expansion.
NOTE: The coolant bottle has two chambers. Coolant
will normally only be in the outboard (larger) of
the two. The inboard chamber is only to recover
coolant in the event of an overheat or after a recent
service fill. The inboard chamber should normally
be empty. If there is coolant in the overflow side of
the coolant bottle (after several warm/cold cycles of
the engine) and coolant level is above cold full
when cold, disconnect the end of the overflow hose
at the fill neck and lower it into a clean container.
Allow coolant to drain into the container until emptied.
Reconnect overflow hose to fill neck.

Your Liberty doesn't have to be on an incline. Fill the reservoir bottle to the "max fill" and start the engine. Turn the heat on and add coolant as needed. Leave the motor running until the thermostat opens and verify the reservoir is still full.

Since the reservoir is the highest part of the cooling system, all of the air should be pushed up and out of the bottle with the cap off.

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks