What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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Geotrash

Dave
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Well, so much for trying to save a few bucks. The reman steering rack I bought from Rock Auto is leaking already. Gonna crawl underneath there shortly and figure out where its coming from but initial indications are it's coming from the boot on the driver's side and not the lines.
 

07Burb

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Well, so much for trying to save a few bucks. The reman steering rack I bought from Rock Auto is leaking already. Gonna crawl underneath there shortly and figure out where its coming from but initial indications are it's coming from the boot on the driver's side and not the lines.
Silicone and duct tape it :crazy:
 

Geotrash

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Update: it was the lines. The new fluid is so clear that I couldn't be sure until I crawled under there with a light. Sure enough, the lines were leaking at the rack inlet so I torqued that down again and hopefully that will take care of it. Phew! Sorry to throw shade at Rock Auto earlier.
 

89Suburban

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Update: it was the lines. The new fluid is so clear that I couldn't be sure until I crawled under there with a light. Sure enough, the lines were leaking at the rack inlet so I torqued that down again and hopefully that will take care of it. Phew! Sorry to throw shade at Rock Auto earlier.


I was going to ask if it was a line leaking, but you figured it out! :)
 

Geotrash

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I was going to ask if it was a line leaking, but you figured it out! :)
I took it for a longish test drive over lunch and the steering tightness is much improved. I can tell it needs an alignment though. Even though I measured carefully the length of the original rack and the distance between the jam nuts, and adjusted the tie rods accordingly, it still feels like there is toe-in on both sides. I have an appointment tomorrow morning for a front-end alignment which should get it squared away. Also, when I got back from the drive there were no more leaks, as far as I can tell.
 
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Geotrash

Dave
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Got the alignment done this morning and as I walked toward the truck parked outside the shop running, I could hear an irregular metallic ringing sound coming from underneath. I popped the hood and listened in the engine bay, but no dice - it was definitely coming from the passenger side bell housing area. So I went back inside and talked to the manager. I was careful to say that I didn't think it was related to any of the work they'd done, which he appreciated and with that, he asked his guy to put it back up on the rack for a listen underneath.

The mechanic and I were both stumped, so I asked if he had a stethoscope. We each listened to everything under there with the engine running and as near as we can tell it's coming from the starter area. I'm familiar with what a bad flex plate sounds like and this definitely wasn't that. A little Google-fu when I got home, and THIS is exactly the sound I'm hearing. Thankfully I happen to have a brand new AC Delco starter on the shelf, and will install it ASAP.
 

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