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

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

dross99_si

Full Access Member
Joined
Jul 19, 2016
Posts
174
Reaction score
79
Location
SE Florida
Met up with a fellow member today @dross99_si and attempted to find an emissions leak. Turns out the Tech-2 wanted the engine temp below 158 and that wasn't happening under today's Florida sun, even in the morning after a short drive. So instead we poked around the computer system and shot the breeze until next time. We're both chasing a P0442, very small evap system leak. The Tech-2 can be used to eliminate one portion of the system but I really need to make or buy a smoke generator and do a visual search.

Andy's 2007 Tahoe is one of the cleanest and well maintained trucks I've seen.

Oh, for you guys with Tech-2 and 2007 or 2008 trucks, where can you see the Fuel Pump Module or the pressure and such? Mine (2009) has a dedicated menu but did not see it on the 2007 and poked around a while and still couldn't find it.

It was nice meeting you today and I thank you for taking the time to try and help us sort out this P0442 issue. Also thanks for the compliment. We try to take care of our vehicles as best we can. Much appreciated James!
 

Rocket Man

Mark
Supporting Member
Joined
Dec 25, 2014
Posts
25,966
Reaction score
50,660
Location
Oregon
Met up with a fellow member today @dross99_si and attempted to find an emissions leak. Turns out the Tech-2 wanted the engine temp below 158 and that wasn't happening under today's Florida sun, even in the morning after a short drive. So instead we poked around the computer system and shot the breeze until next time. We're both chasing a P0442, very small evap system leak. The Tech-2 can be used to eliminate one portion of the system but I really need to make or buy a smoke generator and do a visual search.

Andy's 2007 Tahoe is one of the cleanest and well maintained trucks I've seen.

Oh, for you guys with Tech-2 and 2007 or 2008 trucks, where can you see the Fuel Pump Module or the pressure and such? Mine (2009) has a dedicated menu but did not see it on the 2007 and poked around a while and still couldn't find it.
I don’t remember where it was on my 08 Silverado but it wasn’t hard to find.
 

07Burb

GM fan for life
Staff member
Administrator
Supporting Member
Joined
Jan 3, 2011
Posts
49,920
Reaction score
15,480
How many miles did your plug wires last and what brand were they?
I just replaced the original wires on my 07. They were ACDELCO and lasted 216k. They would have gone longer but I’m a huge proponent of preventative maintenance and I didn’t want to push my luck. I replaced them with OEM ACDELCO wires and should get another 200k+ out of them
 

PG01

Supporting Member
Joined
Nov 6, 2016
Posts
14,758
Reaction score
17,877
Location
Up here to the right
I just replaced the original wires on my 07. They were ACDELCO and lasted 216k. They would have gone longer but I’m a huge proponent of preventative maintenance and I didn’t want to push my luck. I replaced them with OEM ACDELCO wires and should get another 200k+ out of them
If you were that huge (Damn auto correct) of a proponent you would have changed them 100k ago....

:)
 
Last edited:

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
23,709
Reaction score
34,666
Location
Stockton, Ca.
It was nice meeting you today and I thank you for taking the time to try and help us sort out this P0442 issue. Also thanks for the compliment. We try to take care of our vehicles as best we can. Much appreciated James!
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
 

Forum statistics

Threads
129,220
Posts
1,812,326
Members
92,321
Latest member
rick3645
Top