Jeep cherokee XJ with WJ grand Cherokee power steering pump upgrade swap issues??
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- เผยแพร่เมื่อ 10 เม.ย. 2024
- many people have reported various issues when swapping a 4.7 V8 grand cherokee power steering pump on a Jeep Xj Cherokee TJ wrangler or MJ Comanche. this video tests pump pressures on multiple pumps to explain mixed results people have reported with this swap. the wj pump is for high volume so no drilling should be required unless you are running additional items off the power steering pump. I ran a stock XJ pump and fitting with a 2003-2004 4.7 WJ pressure releaf valve. I the pump valve can be identified because the WJ will have a hydraulic cooling fan. i have not found a source for the valve other than the junkyard or to buy a WJ pump and remove the valve. if someone finds the valve elsewhere please post the link.
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Awesome work man. You saved me some time and frustration! Thank you thank you
Great work and I appreciate finding this video. I've been thinking about the WJ upgrade, but I'm glad I've been waiting on the upgrade. Maybe seeing your video was divine intervention. :)
thanks this was a easy swap to put a WJ re-leaf valve in a stock XJ pump and fitting. when i originally ran the WJ pump i had some issues with to much pressure on the return line because i drilled out the XJ fitting plus all the adapters to make it work so this led me down the rabbit hole.
@@yesterdaysproject6106 have some not so good news. I swapped out the XJ valve with the WJ valve, and now I'm loosing power steering at low rpm, at or below 2000. I did some research on troubleshooting and did two things: 1. Pulled the WJ valve back out and blew compressor air through the port to make sure there wasn't any blockage, 2. Flushed & bled the entire system with new fluid. The loss of power steering is still happening at low rpm. I guess at this point, the only thing I can conclude is that the age of my pump is playing a role in this result, i.e. just a weaker pump due to its age. As far as know, this is an original PS pump in my 1998. Other than that I'm about ready to put the XJ valve back. Any additional ideas?
Nice work Kyle💪🏻
Wow, this is good info!! I'm so goin to try this on my ZJ, as I'm running 37s. Do you think a cooler would help as well?
as you increase pressure so does heat. I would for sure recommend a cooler. a cooler would really help a stock pump as well. many people start to have steering fadewhen off road because they boil the fluid
Thanks a lot man
This is fantastic! Really like to see the numbers. Thanks very much! Would you have a link to getting the right pressure relief valve?
it is for a 4.7 WJ 2003-2004 it can be identified by the hydraulic cooling fan. I have not found a source to order them new so ive got them from the junkyard
@@yesterdaysproject6106 Thank you. Did you happen to measure the difference in the hole sizes of the XJ vs WJ relief valves? I'm sure you know that a lot of people just drill the XK pressure relief valve a little larger. You mentioned the springs felt different between the two, but I wonder if the hole all is really needed to be done? Or, at least give a little more of a bump but not as good as larger hole and WJ spring?