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

[Greg Kulbick]

Probably. Also the vent solenoid can stay closed if the truck is running while filling, so is a potential issue. Ignition off so the vent valve opens.

Try pushing (blowing) some air through the disconnected canister, it should be pretty easy. If the canister has gas in it or the pellets are escaping, new canister time.

I'm about to pull mine to test it for leaks, since mine has the opposite problem, evap leak.

Truck was off, tried going full blast at the pump and you could hear it gurgling then shut off, then some gas spilled out. Was able to get fuel in as long as I was deliberate with the handle. I'll get under there this weekend and pull the canister, give it a good shake.

 

[Fless]

Probably. Also the vent solenoid can stay closed if the truck is running while filling, so is a potential issue. Ignition off so the vent valve opens.

Try pushing (blowing) some air through the disconnected canister, it should be pretty easy. If the canister has gas in it or the pellets are escaping, new canister time.

I'm about to pull mine to test it for leaks, since mine has the opposite problem, evap leak.

@Greg Kulbick one other thing is to check for pinched evap lines around the canister and fuel tank.

 

[Greg Kulbick]

@Greg Kulbick one other thing is to check for pinched evap lines around the canister and fuel tank.

I checked everything while routing the replacement this evening and they all look good. One thing stood out to me, the shape of the new hard line to the canister from the solenoid was not able to follow the original routing over the top of the other lines. I had to go below them, but still well out of the way.

Edit:
I double checked the video I referenced to install and both the original and the replacement shown were routed low.

¯\_(ツ)_/¯

 

[RooTBeeRthe1st]

I have about 140k or so but engine hours is way up there. 67xx.

I'm just over 145k
But hours...can't remember if 8,000+ or 8,500+.

 

[Sparksalot]

I'm just over 145k
But hours...can't remember if 8,000+ or 8,500+.

 

[RooTBeeRthe1st]

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Checked when I parked at work.

Which means my hoe has averaged ~18mph over it's lifespan so far.

 

[Doubeleive]

So curious question...

Whats idle and cruising oil pressure gauge look like?

Mine seems a bit low and if it’s going I would like to be ahead of it and find a replacement and pull this one.

@54k mine sits at 40 often but will go down to just above 20 hot idling sometimes

 

[gooffeyguy]

Or just a lot of idling, which is pretty norm for ex-cop PPV/SSV vehicles like Sparky's

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[avalonandl]

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I have 5560 hours. At 160 k miles.

 

[03_GMC]

Bruh... As soon as I saw the first pic and before I read your sentence at the end, the reply I heard forming in my head was "As a former overhead door tech, I approve of your shenanigans". Coincidentally, I had an emergency repair at my brother's house last night- thrown cable.

Lol love it. Yeah I still do random repairs but don’t try to. Punched angle is a mans best friend.


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