Power Steering Hose Replacement

[bpaul]

Hello all,

I have a 2007 Yukon XL 4WD and need to replace the power steering hose that runs from the PS pump down to the R&P. I was hoping to save some $ by doing it myself (I'm relatively handy around the car), but I've read that since I have a 4wd, it could be a lot more complex. Can anyone shed some light on the process to get this done?

Thanks!

 

[CrashTestDummy]

If you're planning on DIY work on your truck, I'd highly-recommend getting the factory service manual set. They are still available from Helm. I know, because when I ordered a set for our 2010 PPV, they sent me the 2007 set. It isn't cheap, but it'll pay for itself quickly.

You'll also need a torque wrench capable of inch-pound measurements, as it looks like the bolt that holds the bracket that secures the hoses to the rack requires about 104 lb-in torque. The nut on the back of the pump requires 24 lb-ft of torque. You'll also probably want to invest in some good flare nut wrenches so you don't end up rounding the flare nut off at the pump. I've been a long-time fan of Craftsman tools, but have invested in some Snap-On flare nut wrenches because they're just a better design that's less likely to spread while trying to loosen the flare nut.

A trick I have learned to remove a flare nut is to put the flare nut wrench on the nut, then tap the other end with a hammer. Shocking the nut like this can be really effective in loosening a stubborn nut. If you can't get it loose with a couple of whacks with a hammer, STOP, put some liquid wrench, or some other penetrant on it and let it set a while. You don't want to round the nut.

Other than that, and keeping the ends on the steering gear and back of the pump spotless (make sure the seals are still there, too), that's about it, without actually getting under the truck and doing the job myself.

HTH.

 

[bpaul]

Awesome CTD - I truly appreciate the response and feel much more comfortable about getting under the hood to do it myself. I'll let you know how it goes.

Thanks again!

 

[CrashTestDummy]

Manuals can be ordered here:

http://www.helminc.com/helm/publication.asp?Style=helm

I'm in no way associated with Helm, just like having FSMs with me when I work on things.