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Jeep Master
17,989 Answers
- Posted on Nov 13, 2009
Re: How to replace radiator in a 2002 jeep grand cherokee...
WARINING
Do not remove the cylinder block drain plugs or loosen the
radiator drain **** with the system hot and under pressure. Serious
burns from coolant can occur.
WARNING
When removing the radiator or A/C condenser for any reason, note
the location of all radiator- to-body and radiator-to-A/C condenser
rubber air seals. These are used at the top, bottom and sides of the
radiator and A/C condenser. To prevent overheating, these seals must be
installed to their original positions.
Removal & Installation:
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Disconnect battery negative cable.
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Remove radiator pressure cap.
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For access to radiator draincock, remove radiator grill mounting screws and remove grill.
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Attach one end of a 24 inch long x
1
/
4
inch ID hose to the radiator petcock Put the other end into a clean container. Open petcock and drain radiator.
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Detach power steering fluid reservoir from fan shroud and lay aside.
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Disconnect electric cooling fan electrical connector, if equipped
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Disconnect CRS hose from radiator filler neck and remove from shroud retaining loops.
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Remove the four (4) viscous fan/drive assembly nuts from the water pump pulley and remove fan/drive assy.
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Remove the four (4) fan shroud to core support mounting screws.
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Remove the electric fan (if equipped) and shroud assembly from the vehicle
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Remove radiator upper crossmember.
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If equipped with air conditioning, separate radiator from condenser by removing condenser-to-radiator mounting brackets.
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Disconnect upper and lower radiator hoses.
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If equipped, disconnect and plug automatic transmission fluid
cooler lines. Quick Connect Fitting Release Tool 6935 may be needed. If
equipped with remote transmission cooler, remove line to cooler from
bracket at bottom of radiator
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Lift radiator straight up and out of engine compartment taking care not to damage fins.
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If radiator is to be replaced, be sure to remove and transfer any components not included with replacement radiator.
To install:
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The radiator is supplied with two alignment dowels. They are
located on the bottom tank and fit into rubber grommets in the radiator
lower crossmember.
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Lower radiator into engine compartment. Position alignment dowels into rubber grommets in radiator lower crossmember.
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If equipped with air conditioning, attach condenser to radiator with mounting brackets
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Install radiator upper crossmember and four mounting bolts.
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Install radiator upper crossmember-to-isolator nuts. Tighten nuts
to 86 inch lbs. (10 Nm) torque. If isolator-to-radiator nuts had been
removed, tighten them to 47 inch lbs. (5 Nm).
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Connect radiator upper and lower hoses.
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If equipped, connect automatic transmission fluid cooler lines.
If equipped with remote cooler, attach cooler line to bracket at bottom
of radiator.
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Install electric fan (if equipped) and shroud assembly. Insert
alignment tabs at bottom of fan shroud into slots in bracket at bottom
of radiator. Tighten mounting bolts to 31 inch lbs. (3 Nm).
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Connect electric cooling fan electrical connector.
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Install power steering reservoir to fan shroud.
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Install grill.
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Connect battery negative cable.
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Fill cooling system with correct coolant.
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Install pressure cap.
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Check and adjust automatic transmission fluid level (if equipped)
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Start engine and visually check for leaks.
For more details I suggest review the Service Repair Manual:
- Section-07-Cooling-System-Ewj7 (page 33 and next)
- Section-07a-Cooling-System-Ewj7a
I really hope helped with this (remember rated and comment this help) Good luck.
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