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.