My 07 Denali XL 'build'/Check Engine Lights/Questions

[swathdiver]

You convinced me in another thread to get one lol. I dont really know how to use it sadly! Just basic diagnostics so far.

Just poke around through each of the menus to see what they do, being careful not to make any changes unless you are sure of what you're doing. I learned mine while the kids were at volleyball practice! When you are diagnosing a problem and following the shop manual, it takes you step by step through it too.

 

[carrmann]

Just poke around through each of the menus to see what they do, being careful not to make any changes unless you are sure of what you're doing. I learned mine while the kids were at volleyball practice! When you are diagnosing a problem and following the shop manual, it takes you step by step through it too.

I've been playing with it some. But there is a lot of stuff, and I don't know all of the acronyms etc haha. I've gotten some of it down. But there's quite a bit more I need to learn.

Best tuner that I can use on the truck? I'd like to eventually get a tune for it, but for now just so I can bump up the idle a little bit (100 rpm). I dont want to mail out the pcm etc, so something that I can make small adjustments with(like idle rpm), and then if I do cam/headers/nocats etc get an emailed perf tune.

 

[Geotrash]

I've been playing with it some. But there is a lot of stuff, and I don't know all of the acronyms etc haha. I've gotten some of it down. But there's quite a bit more I need to learn.

Best tuner that I can use on the truck? I'd like to eventually get a tune for it, but for now just so I can bump up the idle a little bit (100 rpm). I dont want to mail out the pcm etc, so something that I can make small adjustments with(like idle rpm), and then if I do cam/headers/nocats etc get an emailed perf tune.

HP Tuners – Home

HP Tuners is the leading diagnostic and calibration solution for vehicle performance with the latest MPVI3 interface and VCM Suite software.

www.hptuners.com

 

[carrmann]

replaced my pcv clean/dirty lines. seems to have helped with my idle issues (would hang a little when driving). they were cracked pretty bad and leaking a lot of air.

 

[carrmann]

Pretty sure that is for the heated washer fluid that was recalled. Do you have that button between your power outlets under the HVAC controls? You may have 3 to 5 buttons on those early cars.

Use GM OE parts whenever possible. Drill out those busted swaybar bolts and if you get lucky can save the threads, if not, helicoil or put in a bigger thread. There's a nut welded to the top of the bracket. They get really corroded up north and snap off easily since the heads are only 10mm, BTDT!

You're going to want a Tech-2 or similar to get this thing in top form again.

Photo of the buttons. I believe your are correct. Button doesn't do anything. That's what the disconnected wires under-hood go to?

 

[carrmann]

Put new plugs in today. It was wayyyy over sure. Average gap on them was .080"! Pass rear plug was a little difficult to get at, but removing the wheel well liner made it pretty easy.

Found it has a broken exh manifold stud (front one) on driver's side.... Bummer!

Next up is driver side abs wheel sensor. Then im going to fix or replace the front seat, neither one works lol.

 

[j91z28d1]

front driver side, at least on my truck would be the easiest to get to. mine broke the rear drivers side. little worse but the clamp thing seems to be sealing it well. worth 20$ not to have to pull the manifold for a while.

the tend to suck air and mess with the o2 readings, might be worth moving that up the list.

 

[carrmann]

front driver side, at least on my truck would be the easiest to get to. mine broke the rear drivers side. little worse but the clamp thing seems to be sealing it well. worth 20$ not to have to pull the manifold for a while.

the tend to suck air and mess with the o2 readings, might be worth moving that up the list.

clamp thing?

 

[Fless]

clamp thing?

 

[carrmann]

View attachment 400577

thank you. the 917-107 seems like what I would need(pretty neat too!), but does not show it as fitting the 6.2 for 2007.

does not seem to be leaking from the broken bolt location however (pass side front bolt).