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TSB - SES Light - DTC P0446 due to Dust in EVAP Vent Valve - kw bracket CEL
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#1
07-26-2004, 10:25 PM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
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<TD align=middle width="50%">Document ID# 1531166
2003 HUMMER
H2 </TD>
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<H1>SES Light - DTC P0446 due to Dust in EVAP Vent Valve - kw bracket CEL
emissions evaporative hose lamp L18 L59 LM7 LQ4 LQ9 LR4 MIL solenoid #PIP3032 -
(06/24/2004)</H1>00 - 03 Full Size Utility Vehicles with a P0446 due to Dust in
the EVAP Vent Valve
.</P>
The following diagnosis might be helpful if the vehicle exhibits the
described symptoms in the PI.</P><A name=ss1-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss1-1531166">
<H5>Condition/Concern:</A></H5>
Some vehicles that are operated in dusty environments, such as farming or
off-road applications, may have a SES light on with a P0446 DTC stored.</P><A
name=ss2-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss2-1531166">
<H5>Recommendation/Instructions:</A></H5>
If the published diagnostics isolate an EVAP vent valve concern and excessive
EVAP Vent Valve dust intrusion is found, install the following updated
components to prevent a repeat dust intrusion concern:</P>
1) 15750484 - EVAP Vent Valve</P>
2) 15105605 - Mounting Bracket</P>
If EVAP Vent Valve dust intrusion was found, inspect the EVAP canister for
dust intrusion. If EVAP canister dust intrusion is present, also replace the
EVAP canister. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance.</P><A
name=ss3-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss3-1531166">
<H5>Models:</A></H5>
(00 - 03 Cadillac Escalade - C6 and K6) and (00 - 03 Chevrolet Suburban - C1,
C2, K1 and K2) and (00 - 03 Chevrolet Avalanche - C1, C2 K1 and K2) and (00 - 03
Chevrolet Tahoe - C1 and K1) and (00 - 03 GMC Yukon XL - C1, C2, K1 and K2) and
(00 - 03 GMC Yukon - C1, C2, K1 and K2) (03 Hummer H2 - N2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>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.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
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<TABLE width="100%" align=center height="63">
<TBODY>
<TR>
<TD width="25%" slign="LEFT" height="59"></TD>
<TD align=middle width="50%" height="59">Document ID# 1531166
2003 HUMMER
H2</TD>
<TD align=right width="25%" height="59"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#2
07-26-2004, 10:25 PM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Service Information</TITLE>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<FORM name=topNavForm action=/servlets/CellHandler>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1531166
2003 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>SES Light - DTC P0446 due to Dust in EVAP Vent Valve - kw bracket CEL
emissions evaporative hose lamp L18 L59 LM7 LQ4 LQ9 LR4 MIL solenoid #PIP3032 -
(06/24/2004)</H1>00 - 03 Full Size Utility Vehicles with a P0446 due to Dust in
the EVAP Vent Valve
.</P>
The following diagnosis might be helpful if the vehicle exhibits the
described symptoms in the PI.</P><A name=ss1-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss1-1531166">
<H5>Condition/Concern:</A></H5>
Some vehicles that are operated in dusty environments, such as farming or
off-road applications, may have a SES light on with a P0446 DTC stored.</P><A
name=ss2-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss2-1531166">
<H5>Recommendation/Instructions:</A></H5>
If the published diagnostics isolate an EVAP vent valve concern and excessive
EVAP Vent Valve dust intrusion is found, install the following updated
components to prevent a repeat dust intrusion concern:</P>
1) 15750484 - EVAP Vent Valve</P>
2) 15105605 - Mounting Bracket</P>
If EVAP Vent Valve dust intrusion was found, inspect the EVAP canister for
dust intrusion. If EVAP canister dust intrusion is present, also replace the
EVAP canister. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance.</P><A
name=ss3-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss3-1531166">
<H5>Models:</A></H5>
(00 - 03 Cadillac Escalade - C6 and K6) and (00 - 03 Chevrolet Suburban - C1,
C2, K1 and K2) and (00 - 03 Chevrolet Avalanche - C1, C2 K1 and K2) and (00 - 03
Chevrolet Tahoe - C1 and K1) and (00 - 03 GMC Yukon XL - C1, C2, K1 and K2) and
(00 - 03 GMC Yukon - C1, C2, K1 and K2) (03 Hummer H2 - N2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>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.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
<FORM name=bottomNavForm>
<HR>
<TABLE width="100%" align=center height="63">
<TBODY>
<TR>
<TD width="25%" slign="LEFT" height="59"></TD>
<TD align=middle width="50%" height="59">Document ID# 1531166
2003 HUMMER
H2</TD>
<TD align=right width="25%" height="59"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#3
07-26-2004, 10:25 PM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Service Information</TITLE>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="Microsoft FrontPage 5.0" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<FORM name=topNavForm action=/servlets/CellHandler>
<TABLE width="100%" align=center>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1531166
2003 HUMMER
H2 </TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>SES Light - DTC P0446 due to Dust in EVAP Vent Valve - kw bracket CEL
emissions evaporative hose lamp L18 L59 LM7 LQ4 LQ9 LR4 MIL solenoid #PIP3032 -
(06/24/2004)</H1>00 - 03 Full Size Utility Vehicles with a P0446 due to Dust in
the EVAP Vent Valve
.</P>
The following diagnosis might be helpful if the vehicle exhibits the
described symptoms in the PI.</P><A name=ss1-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss1-1531166">
<H5>Condition/Concern:</A></H5>
Some vehicles that are operated in dusty environments, such as farming or
off-road applications, may have a SES light on with a P0446 DTC stored.</P><A
name=ss2-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss2-1531166">
<H5>Recommendation/Instructions:</A></H5>
If the published diagnostics isolate an EVAP vent valve concern and excessive
EVAP Vent Valve dust intrusion is found, install the following updated
components to prevent a repeat dust intrusion concern:</P>
1) 15750484 - EVAP Vent Valve</P>
2) 15105605 - Mounting Bracket</P>
If EVAP Vent Valve dust intrusion was found, inspect the EVAP canister for
dust intrusion. If EVAP canister dust intrusion is present, also replace the
EVAP canister. </P>
.</P>
Please follow this diagnosis process thoroughly and complete each step. If
the condition exhibited is resolved without completing every step, the remaining
steps do not need to be performed. If these steps do not resolve the condition,
please contact GM TAC for further diagnostic assistance.</P><A
name=ss3-1531166><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1531166#ss3-1531166">
<H5>Models:</A></H5>
(00 - 03 Cadillac Escalade - C6 and K6) and (00 - 03 Chevrolet Suburban - C1,
C2, K1 and K2) and (00 - 03 Chevrolet Avalanche - C1, C2 K1 and K2) and (00 - 03
Chevrolet Tahoe - C1 and K1) and (00 - 03 GMC Yukon XL - C1, C2, K1 and K2) and
(00 - 03 GMC Yukon - C1, C2, K1 and K2) (03 Hummer H2 - N2) </P>
.</P>
</P>
<TABLE width="100%">
<TBODY>
<TR>
<TD align=left width=778><FONT size=1>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.
</FONT></TD>
<TD align=middle width=42></TD>
<TD align=middle width=167><FONT size=2>WE SUPPORT VOLUNTARY TECHNICIAN
CERTIFICATION
</FONT></TD></TR></TBODY></TABLE>
<P align=center>© Copyright General Motors Corporation. All Rights
Reserved. </P>
<FORM name=bottomNavForm>
<HR>
<TABLE width="100%" align=center height="63">
<TBODY>
<TR>
<TD width="25%" slign="LEFT" height="59"></TD>
<TD align=middle width="50%" height="59">Document ID# 1531166
2003 HUMMER
H2</TD>
<TD align=right width="25%" height="59"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
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