What did you do to your NBS GMT800 Tahoe/Yukon Today?

[Sam Harris]

In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.

 

[Jimmyy]

If this is just a solenoid/valve couldn’t you have done a quick check by applying voltage from a power source?

 

[Fless]

In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.

I was kind of wondering if the Tech 2 menus for our years would have an emissions test to pull vacuum on the whole system to see if it does it and holds. I've had the occasional "tighten gas cap" message, too. I'll have to give it a try with my Tech 2 next time I drive it and think of it.

 

[Fless]

If this is just a solenoid/valve couldn’t you have done a quick check by applying voltage from a power source?

Probably so. But it's a common failure item and they can be intermittent. Easy to change; bet I could even do it!

 

[treehan77]

As long as it wasn’t full of charcoal pellets to the purge you’re probably good

In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.

 

[tRidiot]

What is the Corvette servo thing?

<edit> Never mind, found some stuff, reading up on it now...

 

[Rocket Man]

In my quest to appease the fuel vapor nazis.. er, the eh CEL P0455.. I replaced the vapor purge valve solenoid today. AC Delco part of course. Man, this intake is embarrassingly dirty. I think I need a need a TBSS, or NNBS intake to replace it.. [emoji3166]... but in the meantime, hoping this settles the CEL down and I don’t have to go further with the more fun parts replacements.

Hate to tell you but those other intakes are ugly too. You need one of these. They really dress up the engine bay.

 

[Sam Harris]

Hate to tell you but those other intakes are ugly too. You need one of these. They really dress up the engine bay.View attachment 276660

Mmm.. that would look great up top...! Damn Mark, when are you upgrading..? Sell me your current one..? [emoji16][emoji106][emoji631]

 

[Teamiez]

What did I do to mine today, looked at the old NY girl and said dang you still look good!

 

[treehan77]

Couldn’t stand to wait for the SS brake lines…