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I need to change the power steering pump on my 2002 ...
Sent to Car Experts June 26 09:28 AM

I need to change the power steering pump on my 2002 Jeep Grand Cherokee, V8, 4.7L. What else should I change? Should I change the hoses and the filter? Thanks.

Customer (name blocked for privacy)
Status:  Closed   Value: $12
Answer
June 26 10:07 AM (39 minutes and 16 seconds later)
         
REPLIEDCheck Mark

Hello!

As near as I can tell from the published service information for the vehicle, there does not appear to be any kind of filter to replace in this system. Replacing hoses is not usually necessary when replacing a pump. If the pump has failed internally, it is a good idea to replace all the fluid in the system, as pump failures can contaminate the fluid with bits of debris.

On this model, the PS pump also provides pressurized fluid for the hydraulic cooling fan. The service information cautions that the pump is a special part # with a flow rate that differes from other Jeep modles, although it may look the same externally. Also, the service information specifies use of Mopar Power steeering fluid; do not use transmission fluid in this system.

Here is the procedure for replacement and bleeding:

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  1. Remove the serpentine drive belt.
  2. Remove the pressure and return hoses from pump and drain pump.
  3. Remove 3 pump mounting bolts through pulley access holes.
  4. Remove the pump from the vehicle

INSTALLATION

  1. Position the pump on the left cylinder head and install bolts through pulley access holes. Tighten bolts to 28 Nm (21 ft. lbs.) .
  2. Install the pressure and return hoses to pump.
  3. Install serpentine drive belt.
  4. Add Mopar Power Steering fluid

STANDARD PROCEDURE - INITIAL OPERATION

NOTE: Remove as much of the old fluid out of the system as possible with a suction tool or by removing a hose, When a component has failed. Then refill it with fresh fluid until it is clean. This may have to be done more than once

CAUTION: Use MOPAR Power Steering Fluid or equivalent. Do not use automatic transmission fluid and do not overfill

Wipe filler cap clean, then check the fluid level. The dipstick should indicate COLD when the fluid is at normal ambient temperature.

  1. Fill the pump fluid reservoir to the proper level and let the fluid settle for at least two minutes.
  2. Start the engine and let run for a few seconds then turn engine off.
  3. Add fluid if necessary. Repeat the above procedure until the fluid level remains constant after running the engine.
  4. Raise the front wheels off the ground.
  5. Slowly turn the steering wheel right and left, lightly contacting the wheel stops at least 20 times.
  6. Check the fluid level add if necessary.
  7. Lower the vehicle, start the engine, and use the DRB III to activate the hydraulic fan on full fan operation.

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I hope this is helpful; if so, please click my accept button! thanks!

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Steve7654 -- Auto Service Technician -- 99% Positive Feedback on 1726 Car Accepts
27 yrs ASE L1 Master Technician, Service manager
Reply
June 26 10:14 AM (6 minutes and 47 seconds later)
         
Reply to Steve7654's Post: What do you mean a special part number? Can I go to a parts store and order this pump still?
Customer (name blocked for privacy)
Answer
June 26 10:21 AM (6 minutes and 37 seconds later)
         
ACCEPTEDCheck Mark

By that, what the manual means is that this part number is only used on the vehicles that have hydraulic cooling fans that are operated by the power steering pump. You just want to make sure the parts store counter guys do not sell you the same part number used on other Jeep engines; they are NOT interchangeable although they may look alike.

A good counter guy will make sure of this; you have to be careful if you are dealing with some discount stores like Autozone or Advanced though; they often hire some pretty clueless counter people for about minimum wage that often have no idea even what the part does that they are selling. If in doubt, you can get teh right one at the Mopar dealer; they usually offer a line of remanufactured parts of this type. If you do not want to go to the dealer for some reason, you should just make sure that you are dealing with a knowledgeable parts supplier...



Edited by Steve7654 on June 26 2006 at 10:21 AM
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Steve7654 -- Auto Service Technician -- 99% Positive Feedback on 1726 Car Accepts
27 yrs ASE L1 Master Technician, Service manager
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