Check engine light on . . .
Burning Brakes
Joined: Jun 2005
Posts: 913
Likes: 129
From: Toronto
Hmmm. Just found this...Could be the the transmission connector harness. A backed out terminal
http://www.teamzr1.com/ubbthreads/ub...at&Number=2540
http://www.teamzr1.com/ubbthreads/ub...at&Number=2540
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
I saw that the other day when I Googled the error code. Where, pray tell, is that connector?
Burning Brakes
Joined: Jun 2005
Posts: 913
Likes: 129
From: Toronto
At the back of the car connected to the tranmission
This may help:
https://www.autocodes.com/uploads/gmc/08-07-30-021E.pdf
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
I cleared the codes before going to lunch which is about a 14 mile round trip. Still okay.
A couple of things: When I turned the ignition on, the DIC said batt was 11.9 V. A hand meter right on the posts shows 12.85. When I first started it I glanced at the DIC and it showed the "Service Traction . . . " message for less than a second then went away. After that, all the way to town and back nothing unusual showing anywhere.
I just did a load test on the batt, shows to be very good.
I'm going to the watering hole for tacos and beer tonight, we'll see what happens.
A couple of things: When I turned the ignition on, the DIC said batt was 11.9 V. A hand meter right on the posts shows 12.85. When I first started it I glanced at the DIC and it showed the "Service Traction . . . " message for less than a second then went away. After that, all the way to town and back nothing unusual showing anywhere.
I just did a load test on the batt, shows to be very good.
I'm going to the watering hole for tacos and beer tonight, we'll see what happens.
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Brett Foote
Safety Car
Joined: Jan 2011
Posts: 4,959
Likes: 526
Ha, yes I've read the countless threads here about the bizarre things that happen when the battery goes out on these cars. It happened to me four years ago -- wouldn't crank, DIC went crazy, lights flashing, etc. Luckily I was in my front yard.
Although the battery is four years old, it is always on a tender when home. I load-tested it this spring and it was still excellent. So, who knows?
Nah, I can't go that route. I have to have things correct. It's part of my (flawed) perfectionism.
Thanks Tony. Do you think the light would go out if I changed my underwear?
Last time I changed them was when I bought the new battery. Maybe they're due. 
Although the battery is four years old, it is always on a tender when home. I load-tested it this spring and it was still excellent. So, who knows?
Nah, I can't go that route. I have to have things correct. It's part of my (flawed) perfectionism.
Thanks Tony. Do you think the light would go out if I changed my underwear?
Last time I changed them was when I bought the new battery. Maybe they're due.
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
Eh, got about a mile away from home and the light came on again. Imma let her sit til next week when my buddy can check it with his good scanner.
For news on "The Watering Hole" and the new barmaid, click here for info on who she is, and go to my update on post #197 below the above link.
Imma let her sit til next week when my buddy can check it with his good scanner.For news on "The Watering Hole" and the new barmaid, click here for info on who she is, and go to my update on post #197 below the above link.
Burning Brakes
Joined: Nov 2016
Posts: 783
Likes: 224
From: Chilliwack BC Canada
Eh, got about a mile away from home and the light came on again. Imma let her sit til next week when my buddy can check it with his good scanner.
For news on "The Watering Hole" and the new barmaid, click here for info on who she is, and go to my update on post #197 below the above link.
Imma let her sit til next week when my buddy can check it with his good scanner.For news on "The Watering Hole" and the new barmaid, click here for info on who she is, and go to my update on post #197 below the above link.
My daughter also recently had an air bag fault code set on her Chevy Cruze that resulted from trying to crank the engine with a low battery that resulted from her kids playing with the dome light and leaving it on. The rapid clicking of the starter solenoid triggered the air bag fault and it required a Tech 2 to cancel that fault as well.
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
Update: So I scanned again and this time the code was P0449, which is the evaporator canister solenoid. I took it to Advanced and they came up with the same thing. They had one in stock, was $30-something, but it was broken.
So at least I know what the problem *probably* is. I'll wait til my buddy gets back in town; he has a lift and this part, from what I've read here on CF, is underneath towards the right rear wheel. Also could be a fuse, which I will check before I do anything else.
So is it possible it still could be the gas cap?
So at least I know what the problem *probably* is. I'll wait til my buddy gets back in town; he has a lift and this part, from what I've read here on CF, is underneath towards the right rear wheel. Also could be a fuse, which I will check before I do anything else.
So is it possible it still could be the gas cap?
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
My $20 scanner pulled the correct code, but I couldn't find anything specific about what to replace. Autozone pulled the correct code for free of course, and referenced what turned out to be the bad part (so far anyway, I need to drive it more). My buddy's scanner got the same results so that's the part he replaced.
The worst part of this particular problem was the labor. That thing is buried in the tunnel underneath the car. Part of the exhaust had to be removed, and even then you don't have open access to it. My buddy had a couple of specialized long pliers that made the job somewhat easier than it would be without them.
Instructor
Joined: Nov 2017
Posts: 198
Likes: 48
From: Dallas, Texas
It sounds like now you have a good excuse (not that you need one) to drive the hell out of your car this week end!! Lol
Perfect timing.... enjoy!
And this shows that Besides knowing whats wrong, you also have to have the right tool!!
Perfect timing.... enjoy!
And this shows that Besides knowing whats wrong, you also have to have the right tool!!
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
Here's a couple of threads I found here, that were a help to us:
Evap Vent Solenoid.
DIY to fix PO449.
Thread Starter
Team Owner
Joined: Mar 2014
Posts: 21,631
Likes: 1,144
From: Below the bottom of Berby Hollow, NYS
