Go Back   Tahoe Forum - Chevy Tahoe Forum > 2007 + Chevrolet Tahoe / GMC Yukon / Cadillac Escalade Year Models > Technical Discussions

Welcome to the Tahoe Forum - Chevy Tahoe Forum.
Register to remove these ads.


Technical Discussions This forum is for technical discussions related to customizing your Tahoe/Yukon



Reply
 
Thread Tools Display Modes
Old 08-18-2007, 10:14 PM   #1
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
Service Stabilitrak / Service Traction Control


Register to remove these ads. It's free!
Well, things were going well this afternoon while I was working on my Denali, and I was wanting to back out of the garage, and I had my intake off, so I figured I'd roll her out in reverse. I put the key in on run (not started), foot on brake, door ajar, and dropped it in reverse. Upon rolling out in reverse slow as a snail, I stopped in my driveway, noticing the brakes were making a weird noise, but I figured it was just because I didn't have power braking at that point (engine not running.

I did my work (installed a HID kit), then put things back together, reconnected the negative battery lead, and tested things out. HIDs worked fine after I adjusted a ground lead on the passenger side wiring harness...

ANYWAY, when I buttoned everything back up, and started the truck, I got a check engine light, and a "Service Stabilitrak" and "Service Traction Control" message, then of course it says "Traction Control OFF".

I don't think I screwed anything up with the HID install (everything works fine), but could I have messed something up rolling it out in reverse with it not running?

Any ideas would help, and since I don't have a programmer yet that would be able to read these codes, I'm sure I don't have much choice other than to take it in to the dealer. Did I do something obviously wrong?!? :confused2:

Thanks for any insight / help!
Getwired is offline   Reply With Quote
Old 08-18-2007, 10:55 PM   #2
tgt624824
Tahoeforum Apprentice Member
 
tgt624824's Avatar
 
Join Date: Jun 2007
Posts: 27
tgt624824 is on a distinguished road
Default

Quote:
Originally Posted by Getwired View Post
Well, things were going well this afternoon while I was working on my Denali, and I was wanting to back out of the garage, and I had my intake off, so I figured I'd roll her out in reverse. I put the key in on run (not started), foot on brake, door ajar, and dropped it in reverse. Upon rolling out in reverse slow as a snail, I stopped in my driveway, noticing the brakes were making a weird noise, but I figured it was just because I didn't have power braking at that point (engine not running.

I did my work (installed a HID kit), then put things back together, reconnected the negative battery lead, and tested things out. HIDs worked fine after I adjusted a ground lead on the passenger side wiring harness...

ANYWAY, when I buttoned everything back up, and started the truck, I got a check engine light, and a "Service Stabilitrak" and "Service Traction Control" message, then of course it says "Traction Control OFF".

I don't think I screwed anything up with the HID install (everything works fine), but could I have messed something up rolling it out in reverse with it not running?

Any ideas would help, and since I don't have a programmer yet that would be able to read these codes, I'm sure I don't have much choice other than to take it in to the dealer. Did I do something obviously wrong?!? :confused2:

Thanks for any insight / help!
Disconnect the negative battery cable overnight (or for 10-15 minutes) to reset the lights/computer, you should be good to go. I had a similar light (mine was because I let the truck idle while checking the HID kit, and I didn't have the airbox on).... Let us know how you make out.

-Travis
tgt624824 is offline   Reply With Quote
Old 08-19-2007, 07:09 PM   #3
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
Yup that did it.

I guess the truck didn't appreciate my rolling in reverse without the engine running, and the brakes were pretty p.o.'d too. It sounded like the ABS was engaging pretty aggressively yesterday while I was rolling out, which is why I think the service codes were set...

Anyway, I disconnected the battery lead for a half hour or so, and things are good now. All idiot lights out... :thumbsup:

Thanks for the great suggestion - I was getting worried I had hosed something up.
Getwired is offline   Reply With Quote
Old 08-19-2007, 10:16 PM   #4
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
HMMMmmmm.... Still have trouble....

Well, I think it's time to take 'er to the dealer for service. Stabilitrak and Traction Control service indicators came back. :mad2: Called OnStar, and had them run a diagnostic, and they stated that the ABS/Stabilitrak controller has an issue (I figured as much), and they also mentioned that my fuel system has a problem, which was a surprise. :cuss: I'm wondering if the fuel system error they show has to do with my Volant Intake...or with just having the intake off when I had the key in "run" yesterday when I was doing the work. I thought I had cleared the "check engine" code earlier today.

Anyway, I've disconnected the negative battery lead, will let it sit overnight, and will test again tomorrow. I'm sure the ABS/Stabilitrak issue will come back, but I need to try, right?

Question I have is this: before I take it to the dealer for service, do I need to take off the intake and disconnect my HIDs? I don't think so, but I'd appreciate any input from you guys. I love my truck, and my dealership is pretty good, but I've never had to deal with potential aftermarket issues vs. warranty before so I don't know what to expect.
Getwired is offline   Reply With Quote
Old 08-22-2007, 04:10 PM   #5
uvamack
Tahoeforum Apprentice Member
 
Join Date: Jul 2007
Posts: 29
uvamack is on a distinguished road
Default

Getwired,

Any updates on your truck? Also, where are you located? I am in MD, I noticed you are in the DC suburbs. I plan to install my HID kit this weekend
uvamack is offline   Reply With Quote
Old 08-22-2007, 04:21 PM   #6
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
Default

Nothing yet. It's going in for service tonight & tomorrow. I'm struggling with whether or not I should put the factory intake back on there and play dumb if they ask any questions re: HID lights. What do you think I should do with the intake? My check engine light is on now, and Onstar diagnostics say there's a problem with the fuel system. I sure hope this doesn't get nasty. :ack:
Getwired is offline   Reply With Quote
Old 08-22-2007, 04:22 PM   #7
uvamack
Tahoeforum Apprentice Member
 
Join Date: Jul 2007
Posts: 29
uvamack is on a distinguished road
Default

They will definitely not give you a hard time on the Intake because it doesn't void your warranty.
uvamack is offline   Reply With Quote
Old 08-23-2007, 12:32 AM   #8
73shark
Full Access Member
 
73shark's Avatar
 
Join Date: Apr 2007
Location: KC, MO area
Posts: 1,390
73shark is on a distinguished road
Default Unless . . .

Quote:
Originally Posted by uvamack View Post
They will definitely not give you a hard time on the Intake because it doesn't void your warranty.
Unless the MAF somehow went Tango Uniform and then they'll say it got hurt during the CAI install.
73shark is offline   Reply With Quote
Old 08-23-2007, 01:42 AM   #9
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
Default Not a good "run" of "luck" lately...

Yeah, I thought of that as well w/r/t MAF sensor. I would be surprised if that was it. The intake has been on there for a couple of weeks, no problems. The check engine light came on after the "service stabilitrak" and "service traction control" messages popped up. I'm trying not to worry about this too much.

This sucks though: Literally 15 minutes after dropping the truck off tonight, my ABS light came on in my second vehicle, on the way home with my wife. (I recently had my brake pads changed - I think the brake fluid was just a tad low - topped it off, and it seems okay for the moment).

NOW, to top it all off when I get home, Vista is telling me my hard drive is getting ready to fail. If I "disappear" for a few days -- you'll know my drive died...

I swear this is like a bad dream. Now all I need is for all my teeth to fall out and to show up at work not wearing any pants.

I need a vacation. :ack:
Getwired is offline   Reply With Quote
Old 08-23-2007, 07:11 PM   #10
Getwired
Full Access Member
 
Getwired's Avatar
 
Join Date: Jul 2007
Location: DC Suburbs
Posts: 1,594
Getwired is on a distinguished road
grin Simple fix: Smart truck, stupid owner!


Register to remove these ads. It's free!
Well, it's turned out pretty well thus far. Picked up the truck this afternoon, and it did cost me a $59.99 diagnostic fee. According to the tech @ the dealer:

1) The Volant intake has a small hole in the seam where it was cast, and it was causing the MAF sensor to report less air than the engine was getting, causing a fuel mix problem. The hole was patched temporarily to allow futher diagnostic (using a highly complex strip of electrical tape). Dealer "offered" to patch it for me permanently for $94.00 (labor), but I said no way, I'd just epoxy it for $4.00. The hole is about the size of a grain of rice - I'm actually surprised I didn't notice it.

2) MAF sensor issue / hole has apparently been an issue for a while, since I put on the Volant and didn't notice the hole. Computer stores small/non-critical error codes, and doesn't trigger an idiot light unless the codes persist, which in my case took about two weeks. There is another issue w/ the Volant intake which I've mentioned over here.

3) Computer disables certain other functions based on error conditions. In my case, the traction control and stabilitrak errors were caused by the computer turning those functions off due to the check engine condition as per above (supposedly to prevent cascading failures), and NOT by rolling out in reverse without the engine running.

It's nice that GM puts some "fuzzy-logic diagnostic intelligence" into their products, but for a computer guy like me coming from a (usually) cut/dry troubleshooting school, this was a "curve" I wasn't expecting.

I consider myself lucky not to have hosed up anything else (yet). Bottom line: Inspect your parts carefully before you install them - lesson learned. Ghetto-fied Volant image below.




....Oh yeah, and my other vehicle was a tad low on brake fluid due to recent pad replacement like I mentioned -- just added some and she's golden.

....Also, my computer's drive IS toast. Grrrr.....

Last edited by Getwired; 08-23-2007 at 07:53 PM.
Getwired is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



 
Advertisement

Other Sponsors






All times are GMT -4. The time now is 05:16 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum