What did you do to your OBS GMT400 Tahoe/Yukon Today?

[the 18th letter]

Looks same rocker covers as my 97 vortec 350
Have you worked out what issue is?
If it is the same model as mine it may be inlet manifold.
Using any water?

I haven’t had a chance to look at it but I’ll start by checking the inlet. It’s got a small leak at the side of radiator I need to replace to be able to tell. 99 Vortec 5.7

 

[2drTahoe97]

GM doesn’t show it as a part with the mirror, so it may be something that comes with the windshield to help the glue stick better.

View attachment 444999

That is a tapered wedge that is glued onto the window and the mirror base dovetails onto the wedge (locking it in place).

GM WINDSHIELD MOUNTING WEDGE FOR REAR VIEW MIRROR 1" x 1 3/16" | eBay

GM WINDSHIELD MOUNTING WEDGE FOR REAR VIEW MIRROR 1" x 1 3/16" | eBay Motors, Parts & Accessories, Car & Truck Parts & Accessories | eBay!

www.benl.ebay.be

 

[the 18th letter]

That is a tapered wedge that is glued onto the window and the mirror base dovetails onto the wedge (locking it in place).

GM WINDSHIELD MOUNTING WEDGE FOR REAR VIEW MIRROR 1" x 1 3/16" | eBay

GM WINDSHIELD MOUNTING WEDGE FOR REAR VIEW MIRROR 1" x 1 3/16" | eBay Motors, Parts & Accessories, Car & Truck Parts & Accessories | eBay!

www.benl.ebay.be

What about the part still on the windshield that I was asking about? That’s the mystery.

 

[blizz]

Not today but this last weekend I got the gas tank back in after replacing the fuel pump.

 

[2drTahoe97]

What about the part still on the windshield that I was asking about? That’s the mystery.

That's probably the acrylic adhesive tape that held the mount on.

 

[the 18th letter]

That's probably the acrylic adhesive tape that held the mount on.
View attachment 450929

Those pads have been difficult to find. Everyplace I look tried to sell me glue for the mount.

 

[Mean_Green]

Got issues.

Flaky brake lights.

Had it in for tires and an alignment today. When they pulled it into the bay and on the alignment rack, I noticed the brake lights didn't come on. Tailights, center high mount and the auxiliary LED strip I added, none of them lit. I called the tech's attention to it and he tried a couple of...

www.tahoeyukonforum.com

Got it home safe without getting creamed, but I'm not willing to drive it again until I get this figured out.

 

[the 18th letter]

Changing the radiator for probably the 5th or 6th time since 05. Radiator is definitely a weak point. Went with a local radiator store that has a lifetime guarantee. Was going to go with one from them about 10 years ago and here we are now

 

[east302]

Dang, where does it keep failing?

I’m on my second since new so maybe I just got lucky.

 

[the 18th letter]

Dang, where does it keep failing?

I’m on my second since new so maybe I just got lucky.

It’s never left me stranded or overheated but they’ve all started leaking at the plastic sides. Maybe I’m just unlucky lol usually about 24 months in I have to start adding at the reservoir to keep it filled. Once I’m filling it back up each tankful I start planning on putting in a new one.