Pontiac G6 Forum banner

1 - 19 of 19 Posts

·
Registered
Joined
·
15 Posts
Discussion Starter #1
Can this valve be removed from the car totally or do I have to replace it when it goes bad?? I don't reside in the state with those emissions, but will it mes with the performance of the vehicle?? any help would be greatly appreciated.

:confused:
 

·
Lifetime Member
Joined
·
3,269 Posts
I'm sure it can be removed to simply answer your question, but the cost to retro fit something in its place would be more than a pain in the @ss. You would be way better off just replacing it.
Yes, it will greatly mess with your car's performance. An EGR valve is rarely a problem in todays cars, why are you asking this? Are you having a problem with it?
 

·
Registered
Joined
·
15 Posts
Discussion Starter #3 (Edited)
I have had the light come on twice now and took to the dealer to have them tell me it would be 620.00 to replace the valve and install an then have it programmed. So far I have had no problems when the light is on it's just very annoying at times. There is a service bulletin out from the manufacturer.
 

·
Lifetime Member
Joined
·
3,269 Posts
You would do well to find a machanic through a friend. I think the dealership is taking advantage of you. In my experience, if an EGR valve is bad or plugged your car will idle rough. The car's PC may have detected a lose hose or connection.
 

·
Registered
Joined
·
15 Posts
Discussion Starter #5
I took it to a place I found to be pretty honest and they say that it really isn't a priority unless it's noticeable when driving, he said it will lose power and idle rough so unless I am planning on trying to pass emissions then not to worry, these days times are tough so i guess it will just have to wait!! thanks for your suggestions Nice ride to btw!!....
 

·
Decepticon Extraordinaire
Joined
·
5,354 Posts
The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.
 

·
05 G6
Joined
·
101 Posts
Have the same code on my 05 if I replace the EGR I have to take it to dealership to get it flashed?
 

·
05 G6
Joined
·
101 Posts
No i dont need it flashed or no i dont need to take it to the dealership to get it flashed, i can take it to a mechanic to flash it? cuz i Thought I read somewhere I needed it flashed... Dealership also told me it would be around $110
 

·
Registered
Joined
·
2,388 Posts
No i dont need it flashed or no i dont need to take it to the dealership to get it flashed, i can take it to a mechanic to flash it? cuz i Thought I read somewhere I needed it flashed... Dealership also told me it would be around $110
The EGR valve is a drop-in part. There is no ECM "flashing" required.
 

·
Registered
Joined
·
447 Posts
Actually some of the 05 and 06 with the lx9 will need a reflash when replacing the egr valve. Some of them used siemens egr valves when they were manufactured and those valves have since been replaced by delphi ones, so if you didnt previously have a delphi unit it will require a reflash. Theres a bulletin out there somewhere for it I just cant seem to find it now
 

·
05 G6
Joined
·
101 Posts
Dammit how do ik what EGR valve it is?
 

·
05 G6
Joined
·
101 Posts
I have seen some ac Delco EGR valves and Delphi do I have to get Delphi and get it flashed by dealer or just get ac delco and not get it flashed
 

·
Registered
Joined
·
2,388 Posts
Actually some of the 05 and 06 with the lx9 will need a reflash when replacing the egr valve. Some of them used siemens egr valves when they were manufactured and those valves have since been replaced by delphi ones, so if you didnt previously have a delphi unit it will require a reflash. Theres a bulletin out there somewhere for it I just cant seem to find it now
Good catch. If I had known which DTC that guy was referring to I might have caught that myself. Here's that bulletin (minus the pictures):

_______________________


Service Information 2005 Pontiac G6 | G6 (VIN Z) Service Manual | Document ID: 1923472
--------------------------------------------------------------------------------

#06-06-04-002B: Service Engine Soon (SES) Light Illuminated, Multiple Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) P1404 and/or P0404 (Install EGR Valve Kit and Reprogram PCM) - (Mar 19, 2007)


Subject: Service Engine Soon (SES) Light Illuminated, Multiple Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) P1404 and/or P0404 (Install EGR Valve Kit and Reprogram PCM)


Models: 2005-2006 Chevrolet Malibu Built Prior to August 1, 2005

2005-2006 Pontiac G6 Built Prior to September 1, 2005

with 3.5L V6 Engine (VIN 8 - RPO LX9)




--------------------------------------------------------------------------------

This bulletin is being revised to update the information in the first Important statement in the Correction section. Please discard Corporate Bulletin Number 06-06-04-002A (Section 6 - Engine).


--------------------------------------------------------------------------------

Condition
Some customers may comment on a Service Engine Soon (SES) light illuminated on the instrument cluster. Some vehicles may have previously been serviced for this same condition. Technicians may also find a DTC P1404 and/or DTC P0404 which may have led to previous EGR valve and PCM replacements.

Correction
Important: The EGR valve kit, P/N 89018175, has the following parts required to perform an EGR System changeover for the vehicles listed in this bulletin only. Please be advised that some early produced kits may contain an instruction sheet that has an error in the wiring portion of the procedure. Therefore, it is advised that the instructions included in the kit be discarded and that only the instructions contained in the bulletin be used.

• EGR Valve -- P/N 12581876

• EGR Gasket -- P/N 12593632

• Pipe Assembly, EGR Valve -- P/N 12586606

• Wiring Harness Connector, EGR Valve (includes terminals and wire leads) -- P/N 15306175


Important: This EGR valve kit is used to convert a Delphi EGR valve equipped LX9 engine used in the Chevrolet Malibu and Pontiac G6 to a Siemens valve. This kit contains all necessary parts for conversion. The powertrain control module (PCM) calibration must be updated for the Siemens EGR valve to work correctly. Failure to install an updated calibration when using this conversion kit may cause PCM diagnostic codes to set, resulting in a "Service Engine Soon" indicator lamp to illuminate.

EGR Valve Identification
Refer to the illustrations below. Siemens EGR valves have a horizontal electrical connector. Delphi EGR valves have a vertical electrical connector. If a Siemens valve is already installed, it is not necessary to install this kit. Individual components are serviced.

Siemens EGR Valve




Delphi EGR Valve




Install the parts listed in this bulletin using the following procedure:

Disconnect the negative battery cable at the battery.



Remove the exhaust gas recirculation (EGR) valve pipe bolt .
Remove the EGR pipe assembly bolts from the exhaust manifold.
Remove the EGR pipe.



Disconnect the exhaust gas recirculation (EGR) valve harness electrical connector.
Remove the EGR valve bolts.
Remove the EGR valve.
Remove the EGR valve gasket.
Important: Remove all old gasket material from intake manifold with a gasket scraper.

Clean and inspect the EGR valve gasket mating surfaces.
Install a new EGR valve gasket, P/N 12593632.
Install the new EGR valve, P/N 12581876.



Install the original EGR valve bolts.
Tighten:
EGR valve bolts to 25 N·m(18 lb ft).

Install the new EGR valve pipe assembly, P/N 12586606, to the EGR valve and to the exhaust manifold.



Install the new EGR pipe bolts to the exhaust manifold.
Tighten:
EGR pipe bolts to the exhaust manifold to 25 N·m(18 lb ft).

Install the original EGR pipe bolt to the EGR valve.
Tighten:
EGR pipe bolt to the EGR valve to 30 N·m(22 lb ft).

Important: In the following steps, care must be taken to prevent cross-wiring of the two gray colored EGR wire leads (located at pin A and pin D). Cross-wiring will result in an MIL to be set. Before cutting the wiring harness leads, mark the gray leads using tape so the location will be remembered on assembly.

Take the disconnected exhaust gas recirculation (EGR) valve harness electrical connector and cut the wires directly at the base of the connector. Open the EGR electrical conduit to expose the wire leads.
Strip approximately 6 mm (1/4 in) of insulation from all five EGR circuit harness connector wires
Important: Refer to this bulletin for the Exhaust Gas Recirculation (EGR) Valve Wiring Harness Connector End View schematic for the installation of the new EGR Valve Wiring Harness Connector, P/N 15306175.

Important: Use splice seal connectors supplied in the wiring harness kit (P/N 15306175) when replacing the EGR Valve Wiring Harness Connector.

Install the new EGR valve wiring harness connector, P/N 15306175 (includes splice connectors, terminals and wire leads), to the existing engine wiring harness.
Use a heat gun to shrink the tubing and set the glue in the connectors.
Wrap the new EGR valve wiring harness leads with electrical tape and secure them into the EGR valve electrical harness conduit.
Connect the EGR valve electrical connector.
Reprogram the PCM with the latest calibrations for the EGR system changeover. This calibration, or any that follow, is designed to address this concern. Refer to Service Programming System (SPS) using the appropriate SI procedures. The new PCM calibrations will be available to dealerships as part of TIS2000 incremental satellite update version 1.0, which was broadcast to dealers on 1/8/06. For dealerships that use CDs, they will be mailed on 1/15/06. As always, make sure your Tech®2 is updated with the latest software version.




Exhaust Gas Recirculation (EGR) Valve Wiring Harness Connector End View Schematic
Connector Part Information
5-Way F Metri-pack 150 (Black)

Pin
Wire Color
Circuit Number
Function

A
Gray
435
EGR Solenoid Low Control

B
Tan
2753
Low Reference

C
Brown
1456
EGR Valve Position Signal

D
Gray
5047
5-Volt Reference

E
Orange
1676
EGR Solenoid High Control


Parts Information
Part Number
Description
Qty

89018175
Valve Kit, EGR
1 (as required)


Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

J7903*
Install EGR Valve Kit and Reprogram PCM
0.8 hr

* This labor operation is for bulletin use only. It will not be published in the Labor Time Guide.




GM bulletins are intended for use by professional technicians, NOT a ""do-it-yourselfer"". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


© 2013 General Motors Corporation. All rights reserved.
 

·
Registered
Joined
·
447 Posts
Yeah thats the one I was talking about! And my bad i originally said siemens to delphi, but its really delphi to siemens, but heres a site with pictures to help identify Clicky
 

·
05 G6
Joined
·
101 Posts
Yeah thats the one I was talking about! And my bad i originally said siemens to delphi, but its really delphi to siemens, but heres a site with pictures to help identify Clicky
So it It's a Siemens then I just buy a Siemens EGR valve and no need for flash
 

·
05 G6
Joined
·
101 Posts
Damn I have i think Delphi EGR it have the vertical connection, can I just replace it with same one? Or I need a new Siemens kit? I have seen some Delphi vertical and horizontal connections which one do I use?
 

·
Registered
Joined
·
1 Posts
Can this valve be removed from the car totally or do I have to replace it when it goes bad?? I don't reside in the state with those emissions, but will it mes with the performance of the vehicle?? any help would be greatly appreciated.

:confused:
I have had the light come on twice now and took to the dealer to have them tell me it would be 620.00 to replace the valve and install an then have it programmed. So far I have had no problems when the light is on it's just very annoying at times. There is a service bulletin out from the manufacturer.
Just replace it.

I saw a video on YouTube
I hope this help.
 
1 - 19 of 19 Posts
Top