Question about 2002 Jeep Grand Cherokee
Could be the power steering pump or the steering gear(rack and pinion)
Posted on Oct 18, 2013
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Posted on Jan 02, 2017
power steering pump might need more oil (whining noise). generally power steer pumps take automatic transmission fluid. there should be a reservoir above the pump only fill this a little bit then start the car and turn left to right and recheck level. fluid should only be low if there is a leak at power steer pump/lines or steering rack,
Posted on Jul 29, 2009
I'm not absolutely sure on the tire size for the jeep itself, but I think they are 225/65/R15's. Not absolutely sure.
As for the noise, from your explanation, it sounds like the transfer case is under a heavy bind. Take it off of the road in some grass or dirt and then move it forward a few feet then simply hit reverse. Don't move much maybe an inch and it may release the bind. Once you get the bind off the transfer case, it should slip out of 4wd, unless there is damage in the case/shifter itself.
When operating four wheel drives, with tires of different sizes it causes extreme stress on the gearing in the transfer case. Larger tires don't turn the axles as much as smaller tires. So, this causes stress in the driveline as the front is actually turning slower then the rear. In turn, this will put so much pressure on the gears that it could cause damage and the shifting mechanism will not work correctly to pull it out of 4wd engagement.
Try those ideas, and see if you can get it out of 4WD. Definitely put four tires on the jeep that are all the same size. This will keep you from having excessive stress on the transfer case and gearing therein.
I hope this helps out buddy.
Posted on Sep 21, 2008
SOURCE: knocking noise
Check your tie rods and the drag link bar which controls the steering. Have someone turn the steering wheel back and forth while you are underneath and you should be able to pinpoint the noise location. I had the same problem on my 2001. Replaced the lower tie-rod ends and also the ones on both sides of the drag link. This solved the problem. Whether you do this job yourself or not, you will definately also need an alignment upon completion.
Posted on Jun 09, 2008
There's a technical bulletin on that from Chrysler....The power steering lines need to be replaced. I have the same problem as you see this link - http://www.wjjeeps.com/tsb.htm#STEERING
Steering Honk On 4.0L And 4.7L LHD Grand Cherokee Vehicles
This bulletin involves the replacement of the power steering pressure
and return hoses and tube.
1999 - 2002 (WJ) Grand Cherokee (Domestic and International Markets)
2001 - 2002 (WG) Grand Cherokee (International Markets)
NOTE: THIS BULLETIN APPLIES TO 1999 - 2000 4.7L AND 1999 - 2002 4.0L
GRAND CHEROKEE VEHICLES THAT ARE LEFT HAND DRIVE (LHD) AND
ARE NOT EQUIPPED WITH HYDRAULIC COOLING.
Some vehicles may exhibit a honk-like sound from the power steering
system. This sound occurs most often during a low speed right hand turn,
as would occur during parking lot maneuvers.
If the customer indicates that the above condition is present, perform the section of
the Repair Procedure that is appropriate for the equipped engine.
Qty. Part No. Description
1 04883077 Fluid, Power Steering (MS-5931 quart)
1 05080950AA Hose, Pressure (4.7L)
1 52088116AB Fitting, Pressure Hose - Quick Connect At Pump (4.7L)
Qty. Part No. Description
1 05080951AA Hose, Return (4.7L)
2 **06504502** Clamp, Hose (4.0L or 4.7L)
1 **52088452AE** Hose, Pressure (4.0L)
1 **52088774AC** Hose, Return (4.0L)
1 **52088775AB** Tube, Return (4.0L)
6 **34201631** Rivet, Plastic Black (Front Fascia - 4.0L)
1 **06102141AA** Screw, Pressure Hose (6 mm - 4.0L)
**IF VEHICLE IS EQUIPPED WITH A 4.0L ENGINE:**
1. Remove the front fascia panel.
Posted on Nov 16, 2009
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