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

[07Burb]

But you said, PREVENTATIVE maintenance! LOL Just funnin' ya Jacob!

 

[swathdiver]

evap leaks are generally one of the 2 solenoids, the front solenoid runs about $25-30 online and can be changed in a matter of 2 minutes, the rear one runs about $35-50 and takes a few more minutes but is not difficult, the more pricier part is the canister which runs about $100 but probably doesn't need to be replaced unless your having trouble filling the gas tank.
for the time and prices involved to troubleshoot the leak you can shotgun it and replace all 3 and be done messing with it. just my .02, last time mine popped up it was just the front solenoid $25 and it went away

Andy changed them and the code remains. It's probably around the gas tank, there's a line up there that's over $100 to replace and then again, it could be a five cent connector that is leaking. I used the Tech-2 to determine that my purge and vent were not the cause, have to do it to his next time, didn't know the motor had to be cool to run the test.

Probably going to buy one of those yellow Autel smoke machines, the ones that do not need an external air source but after my wallet recovers from sending the kids to school and buying another truck.

 

[swathdiver]

I don’t remember where it was on my 08 Silverado but it wasn’t hard to find.

Well, next time you hook it up refresh your memory if you don't mind Mark! I was looking but yakking too, walking and chewing gum don't come easy for me.

 

[the_tool_man]

Probably going to buy one of those yellow Autel smoke machines, the ones that do not need an external air source but after my wallet recovers from sending the kids to school and buying another truck.

After pricing a "professional" diagnostic smoke generator, I borrowed an inexpensive smoke machine, like the ones used for Halloween, from a friend. Worked great for finding vacuum leaks. They cost ~$30.

 

[R3cord303]

has anyone done yellow fog lights? Bulbs or a tint to recommend?

 

[Doubeleive]

for those that have the rear air shocks, do your shocks still have some air in them after an hour of sitting parked or do they deflate? I thought mine were holding air still even the next day after sitting overnight but now they are not, so I'm not sure anymore, curious if yours still hold some air even hours later, you can just reach under and squeeze the bladder to check.

 

[R3cord303]

for those that have the rear air shocks, do your shocks still have some air in them after an hour of sitting parked or do they deflate? I thought mine were holding air still even the next day after sitting overnight but now they are not, so I'm not sure anymore, curious if yours still hold some air even hours later, you can just reach under and squeeze the bladder to check.

Is this for the Z55 suspension?

 

[Doubeleive]

Is this for the Z55 suspension?

ya

 

[swathdiver]

After pricing a "professional" diagnostic smoke generator, I borrowed an inexpensive smoke machine, like the ones used for Halloween, from a friend. Worked great for finding vacuum leaks. They cost ~$30.

How did you get the smoke (from party smoker) into the EVAP port on the motor?

 

[R3cord303]

ya

Mine are hard as a rock and its been sitting for about a week after the lifter failure.