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I replaced the water pump and radiator on our 2000 jeep grand cherokee 4wheel drive 4.7L. I am having clearance problems between the mechanical fan and the back of the electric fan.
Re: I replaced the water pump and radiator on our 2000...
It could be that the shaft on the new water pump is longer than the one on the original water pump, will need to measure it & see if there is any difference......cheers.
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What you are describing is a failure of a main circuit. The first thing you should check is yo make sure that your battery is in good condition and that the cables are clean and tight. Let me know if yu find anything wrong there. Then there may be another main circuit problem. Check all of the fuses in your fuse block in the engine compartment. If any of these fuses are blown, it will usually cause several things to not work. If you find any fuses blown, DON'T REPLACE IT YET. Let me know WHICH fuse is blown and I can help you find out why it blew so you can get the problem fixed.
Sounds like your radiator fan is not working.
Have your replaced the fan or fan motor?
Fan motor will cost $100 /diy
Also, check for recall on this fan and motor through Jeep
If the fans don't come on to cool the radiator then maybe it's the thermal fan switch, which sends the turn on signal to the fan relay, that might be bad.
remove the radiator to get to the fan assembly and you probably need a new one unless it just came loose.the motor will be bolted on remove and replace
WATER PUMP The water pump is bolted directly to the engine timing chain case/cover.
A gasket is used as a seal between the water pump and timing chain case/cover.
If water pump is replaced because of bearing/shaft damage, or leaking shaft seal, the mechanical cooling fan assembly should also be inspected. Inspect for fatigue cracks, loose blades, or loose rivets that could have resulted from excessive vibration. Replace fan if any of these conditions are found. Also check condition of the thermal viscous fan drive. Refer to Viscous Fan Drive in this group.
The water pump can be removed without discharging the air conditioning system (if equipped)
REMOVAL Disconnect negative battery cable from battery. Drain cooling system. Refer to Draining Cooling System in this group. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. Using special tool spanner wrench 6958 with adapter pins 8346 and a suitable fan wrench loosen the fan drive Viscous Fan and Fan Drive Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time. WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094) SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.
CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive. Remove two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware Do not attempt to remove fan shroud at this time. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic belt tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front) Automatic Belt Tensioner - When all belt tension has been relaxed, remove accessory drive belt. Remove lower radiator hose clamp and remove lower hose at water pump. Remove seven water pump mounting bolts and one stud bolt CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.
Remove water pump and gasket. Discard gasket. INSTALLATION Clean gasket mating surfaces. Using a new gasket, position water pump and install mounting bolts as shown. Water Pump Installation - Tighten water pump mounting bolts to 54 N·m (40 ft. lbs.) torque. Spin water pump to be sure that pump impeller does not rub against timing chain case/cover. Connect radiator lower hose to water pump. Relax tension from belt tensioner Automatic Belt Tensioner - Install drive belt CAUTION: When installing the serpentine accessory drive belt, belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. Refer to Belt Routing for correct belt routing. Or, refer to the Belt Routing Label located in the engine compartment. The correct belt with correct length must be used.
Position fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit. Be sure the upper and lower portions of the fan shroud are firmly connected. All air must flow through the radiator. Install two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware Be sure of at least 25 mm (1.0 inches) between tips of fan blades and fan shroud. Install fan blade/viscous fan drive assembly to water pump shaft. Fill cooling system. Refer to Refilling the Cooling System in this group. Connect negative battery cable. Start and warm the engine. Check for leaks
When the engine is at operating temp check the electric cooling fan. If it is not moving then i would check the fan relay which is located under the right side headlamp. 9 times out of 10 this is the problem
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