Engine light question
Thread Starter
Pro
Joined: Nov 2003
Posts: 543
Likes: 3
From: Camden AR
Engine light question
I got the rear tires replaced on my 09 Z06 today and on the way home, the check engine light came on. The manual says that changing tire size can trigger this, but I replaced the tires with the stock GY.
Think it could still be causing this? I'm still under warranty, but live in rural America and the nearest 'big city' dealership is a couple of hours away (which is where the tires were changed)...not sure when I'll have the time to make the trip again.
...any advice welcome!...
Think it could still be causing this? I'm still under warranty, but live in rural America and the nearest 'big city' dealership is a couple of hours away (which is where the tires were changed)...not sure when I'll have the time to make the trip again.
...any advice welcome!...
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
I got the rear tires replaced on my 09 Z06 today and on the way home, the check engine light came on. The manual says that changing tire size can trigger this, but I replaced the tires with the stock GY.
Think it could still be causing this? I'm still under warranty, but live in rural America and the nearest 'big city' dealership is a couple of hours away (which is where the tires were changed)...not sure when I'll have the time to make the trip again.
...any advice welcome!...
Think it could still be causing this? I'm still under warranty, but live in rural America and the nearest 'big city' dealership is a couple of hours away (which is where the tires were changed)...not sure when I'll have the time to make the trip again.
...any advice welcome!...
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
You should go buy a code reader/eraser. You can get one at any of the larger auto parts joints for $50-100 for a useable basic model. Great tool to have in the tool box. Takes maybe 2 minutes to pull the code and erase.
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Le Mans Master
Joined: Nov 2007
Posts: 6,419
Likes: 200
From: Wilkes-Barre Pa
Amazon currently has a really good price on the Actron CP9410 $45 delivered.
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
The only thing Onstar will tell you is "you have a check engine light, take it to the Dealer service dept. in the near future". Unless something drastic has changed they will not tell you what the problem is or give you the exact code.
Le Mans Master
Joined: Aug 2007
Posts: 7,250
Likes: 6
From: Glassboro New Jersey
I don't think its possible for the check engine light to come on just from a tire change.
Where in the manual does it say that?
Check engine light is for engine and emission controls. Even a problem with a TPMS wouldn't cause a check engine light.
Where in the manual does it say that?
Check engine light is for engine and emission controls. Even a problem with a TPMS wouldn't cause a check engine light.
Thread Starter
Pro
Joined: Nov 2003
Posts: 543
Likes: 3
From: Camden AR
Pg 3-43: "...replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect the vehicle's emission controls and can cause this light to come on."
The tires are same as the original, GY Supercar...but they look a lot taller...maybe I just wore the tread down more than I thought!
The tires are same as the original, GY Supercar...but they look a lot taller...maybe I just wore the tread down more than I thought!
Safety Car
Joined: Dec 2007
Posts: 4,974
Likes: 148
From: Magnolia Texas
My '08 has had several CEL's for which OnStar has given me the codes when they were called. Maybe its changed but since Dec. '07, been getting these from the "blue" button prior to going to dealer for work.
Burning Brakes
Joined: Sep 2010
Posts: 1,109
Likes: 0
From: Huntsville Alabama
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
Giving the exact code must be a recent addition. OnStar wouldn't for my '05 so I tried it with my '08 (removed the fuel fill cap) and they would only tell me that it was emissions related and to take it to the Dealer. No OnStar for me after the free trial.
Le Mans Master
Joined: Jan 2006
Posts: 6,642
Likes: 450
From: Texarkana Texas
Call me... I live in one of your neighboring "big cities" and will be happy to drive your car to the dealership for you.
Hope you get it figured out.
ps I just changed tire size and did not get a check engine light.
Hope you get it figured out.
ps I just changed tire size and did not get a check engine light.
Racer
Joined: May 2005
Posts: 341
Likes: 3
From: Albuquerque New Mexico
That is what ONSTAR did for me. 
Instructor
Joined: Jan 2007
Posts: 211
Likes: 0
I have a 2008 had the CEL come on after re-fueling one day. I reset the gas cap and the CEL did not go away. Took to the dealer and they found the "Evaporative Emission Canister Solenoid" (what ever the hell that is) to be defective. I understand this can just suddenly go out.
Moderator emeritus
Joined: Jun 2001
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From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Nope, GM will not have a clue that you read and erased the codes. You will simply start "fresh" with history and codes in the ECM.
Elmer