: V6 Camshaft Position Sensors how many and where?



derodge
11-02-12, 11:34 AM
Does anyone know where the Camshaft Position Sensors are on a V6. I am getting Camshaft Positioning code errors causing the car to run a little rough when idle. Checked plugs and coils they are all fine. I don't know if all would need to be replaced but sometimes I get codes regarding bank 2 and 4 misfires. but the Camshaft Position Sensor code is always the first code and sometimes the only code.

1BadCadSTS
11-02-12, 01:26 PM
Timing chain not the sensors. Common problem.

Loren
11-02-12, 03:33 PM
Here's the info you need but be quick time is running out. I had my 08 done, it involves tearing down the entire top of the engine, I don't recommend you try it as there is a special tool required for something.
Date: 02/09/2011
Subject: 10287 - Customer Satisfaction Program - Premature Timing Chain Wear - Reprogram ECM

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GM CUSTOMER CARE AND AFTERSALES

DCS2552

URGENT - DISTRIBUTE IMMEDIATELY



Date: February 9, 2010

Subject: 10287 - Customer Satisfaction Program
Premature Timing Chain Wear - Reprogram ECM

Models: 2007 GMC Acadia, Saturn OUTLOOK
2007-09 Cadillac CTS, SRX, STS
2009 Buick Enclave, Chevrolet Traverse, GMC Acadia,
Saturn OUTLOOK
Equipped with a HFV6 Engine

To: All GM Dealers

Attention: General Manager, Service Manager, Parts Manager,
Used Vehicle Sales Manager, and Warranty Administrator

General Motors is announcing Customer Satisfaction Program 10287 today. The total number of U.S. vehicles involved is approximately 383,000. Please see the attached bulletin for details.

Due to the availability of the required calibration, this program will be administered in phases. The first phase will include the Cadillac vehicles. You will be notified when the calibration and VINs are being released for the remainder of the vehicles.

Customer Letter Mailing

The customer letter mailing will begin on February 15, 2011, for Cadillac customers.

Global Connect (GWM)

The "Investigate Vehicle History" (GMVIS 2) link on the Global Warranty Management (GWM) application within GlobalConnect will be updated February 9, 2011, with Cadillac VINs.

Campaign Initiation Detail Report (CIDR)

The CIDR will be available February 11, 2011, for the Cadillac vehicles.


END OF MESSAGE

GM CUSTOMER CARE AND AFTERSALES

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Message Attachment(s):
10287 bulletin.pdf Acrobat PDF (77.17KB) 10287


CUSTOMER SATISFACTION PROGRAM
SUBJECT: Premature Timing Chain Wear – Reprogram Engine Control Module
MODELS: 2009 Buick Enclave
2007-2009 Cadillac CTS, SRX, STS
2009 Chevrolet Traverse
2007 GMC Acadia
2009 GMC Acadia
2007 Saturn OUTLOOK
2009 Saturn OUTLOOK
Equipped with HFV6 Engine

Due to the availability of the required calibration, this program is being administered in
phases. This first phase will include the Cadillac vehicles only. You will receive a dealer
message when the calibration and VINs are being released for the remainder of the
vehicles.

THIS PROGRAM IS IN EFFECT UNTIL FEBRUARY 28, 2013.

CONDITION
On certain 2007 model year GMC Acadia; Saturn OUTLOOK; 2007-2009 model year Cadillac
CTS, SRX, STS; 2009 model year Buick Enclave; Chevrolet Traverse; GMC Acadia; and Saturn
OUTLOOK vehicles equipped with a HFV6 engine, under certain driving conditions, and with
extended oil change intervals, the timing chain could wear prematurely and cause the
illumination of the Service Engine Soon light.

CORRECTION
Dealers are to reprogram the engine control module, including the engine oil life monitor.

VEHICLES INVOLVED
Involved are certain 2007 model year GMC Acadia; Saturn OUTLOOK; 2007-2009 model year
Cadillac CTS, SRX, STS; 2009 model year Buick Enclave; Chevrolet Traverse; GMC Acadia;
and Saturn OUTLOOK vehicles equipped with a HFV6 engine
Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the
Required Field Actions section in the Global Warranty system.
For dealers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and
will be provided to US and Canadian dealers through the GM GlobalConnect Recall Reports, or
sent directly to export dealers. Dealers will not have a report available if they have no involved
vehicles currently assigned.

The listing may contain customer names and addresses obtained from Motor Vehicle
Registration Records. The use of such motor vehicle registration data for any purpose other
than follow-up necessary to complete this program is a violation of law in several
states/provinces/countries. Accordingly, you are urged to limit the use of this report to the
follow-up necessary to complete this program.


Dear General Motors Customer:
This notice is sent to inform you that General Motors is conducting a Customer Satisfaction
Program that affects 2007 model year GMC Acadia; Saturn OUTLOOK; 2007-2009 model year
Cadillac CTS, SRX, STS; 2009 model year Buick Enclave; Chevrolet Traverse; GMC Acadia;
and Saturn OUTLOOK vehicles equipped with a V6 engine.

Your vehicle was designed and built to meet GM's high standards for quality and reliability.
However, we have determined that under certain driving conditions, and with extended oil
change intervals, the timing chain could wear prematurely and cause the illumination of the
Service Engine Soon light. Timing chain wear can be affected by the age of the engine oil and
driving conditions.

What We Will Do:
To ensure that your vehicle will not experience this condition, your GM
dealer will change the calibration of the engine control module, including the engine oil life
monitor, which in most cases will recommend more frequent oil changes. This calibration
change will be performed for you at no charge until February 28, 2013.

What You Should Do:
To limit any possible inconvenience, we recommend that you contact
your dealer as soon as possible to schedule an appointment for this repair

derodge
11-03-12, 11:14 AM
Boy I would have loved for that to be the problem, but I had this service done back in feb of this year. (Reprogram Engine Control Module). it's just seems so strange the car is fine when accelerating, but idling is terrible. plugs and coils are fine, misfires are random but appear on 2 and 4 more often. could timing chain be gone already. I didn't get the reprogram until about 46k now I have 52k.

1BadCadSTS
11-03-12, 11:32 AM
I'd bet my northstar you have timing chain issues. GM kindly swept the issue under the rug like the fwd n* hg issue.

SC2150
11-03-12, 11:57 AM
Agree w/1badcad

derodge
11-03-12, 03:16 PM
out of warranty repair on timing chain replaced, i wonder how much that would run at the dealer? $1200-$1500 or $2000 -$2500

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out of warranty repair on timing chain replacement, I wonder how much that would run at the dealer? $1200-$1500 or $2000 -$2500

SC2150
11-03-12, 03:31 PM
We do it for app $1200 or so with the latest upgraded complete kit.

:thumbsup:

KRSTS
11-03-12, 04:39 PM
GM put an extended warranty on certain V6's (10 years/120K). Check your VIN.

derodge
11-04-12, 07:06 PM
i just checked my Onstar info; it has a special warranty: I assume this is the Timing Chain warranty to address this issue. Hopefully this is my problem

120,000 MILES
10-Year Special Coverage 11340*
Mileage Expiration*:
120,008
Date of Expiration*:
01/13/2018

KRSTS
11-05-12, 10:01 AM
You should be good to go. See your dealer