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

[Tonyrodz]

Had my soon to be 14 yr old son change the oil and both oil filters today. Still running Mobil 1 Extended Performance 5w30 but changed from Mobil 1 EP filters to the Fram Ultra Gaurd filters this time around as they are supposed to be even better than the M1 filters. I guess the next UOA will tell the tale.

He also installed the new NGK Ruthenium plugs that have been sitting on the shelf for a while. I am certainly glad he changed them because I think I ended up with a set of KNOCK OFF AC Delco Iridium plugs last go around from Fleabay.

There is no way that Iridium plugs should be wore down this much in 75k miles...
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Funny thing was it still ran good without any misfires. I assume my fuel mileage should improve with the new plugs though.

The NGK Ruthenium plugs came from Rock Auto so hopefully I won't find out these are knock offs... lol

He also replaced the valve cover gasket on the drivers side valve cover today.

He installed the new/improved VC that I got from @iamdub a couple months ago but we didn't replace the gasket or bolt grommets and it was evidently leaking a little bit.

Also installed the ICT oil cooler block off plate, but forgot to get a pic of it installed.

Wow, he did alot today. Good for both of you guys. Help him along the way?

 

[wjburken]

Changed put my AC belt today. With that little tool from Lisle it was easy as pie.

Is this the one you used?

 

[iamdub]

Had my soon to be 14 yr old son change the oil and both oil filters today. Still running Mobil 1 Extended Performance 5w30 but changed from Mobil 1 EP filters to the Fram Ultra Gaurd filters this time around as they are supposed to be even better than the M1 filters. I guess the next UOA will tell the tale.

He also installed the new NGK Ruthenium plugs that have been sitting on the shelf for a while. I am certainly glad he changed them because I think I ended up with a set of KNOCK OFF AC Delco Iridium plugs last go around from Fleabay.

There is no way that Iridium plugs should be wore down this much in 75k miles...
View attachment 245022

View attachment 245023

Funny thing was it still ran good without any misfires. I assume my fuel mileage should improve with the new plugs though.

The NGK Ruthenium plugs came from Rock Auto so hopefully I won't find out these are knock offs... lol

He also replaced the valve cover gasket on the drivers side valve cover today.

He installed the new/improved VC that I got from @iamdub a couple months ago but we didn't replace the gasket or bolt grommets and it was evidently leaking a little bit.

Also installed the ICT oil cooler block off plate, but forgot to get a pic of it installed.

That's some serious wear for those plugs. I found where someone compared the authentics to the counterfeits with pics. It was a while back, but I'm sure it can be found again along with others.

 

[George B]

Is this the one you used?

Yup! Worked like a charm!

 

[George B]

Lisle part number?

59370. I ordered it along with a Gates belt from Rockauto.

 

[Rocket Man]

59370. I ordered it along with a Gates belt from Rockauto.

Thanks, I’ll keep it in mind when the time comes.

 

[iamdub]

Thanks, I’ll keep it in mind when the time comes.

Your '08 has the 2010+ design?

 

[wjburken]

Your '08 has the 2010+ design?

Not sure when they went to the stretch to fit belts but my 2009 LTZ had it.

 

[Rocket Man]

Your '08 has the 2010+ design?

I never looked until just now, I assumed it was a NNBS thing. I’m glad to say it does not have that terrible design.

 

[kbuskill]

Wow, he did alot today. Good for both of you guys. Help him along the way?

I mainly supervise these days.