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TSB - Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean
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#1
07-26-2004, 10:34 PM
Hummer Guru
Join Date: Nov 2002
Location: CSA
Posts: 2,511
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<TD align=middle width="50%">Document ID# 1527156
2003 HUMMER
H2</TD>
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<HR>
</FORM>
<H1>Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean
Throttle Body) #04-06-04-040 - (06/14/2004)</H1>Idle Instability, Low or Rough
Idle with Electronic Throttle Control (Clean Throttle Body)
2002-2003 Cadillac Escalade, Escalade EXT</P>
2000-2003 Chevrolet Silverado, Suburban, Tahoe</P>
2002-2003 Chevrolet Avalanche</P>
2000-2003 GMC Sierra, Yukon, Yukon XL</P>
2003 Hummer H2</P>
with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, Z, N, U - RPOs LR4, LM7, L59,
LQ9, LQ4)</P>
and Electronic Throttle Control</P><A name=ss1-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss1-1527156">
<H5>Condition</A></H5>
Some owners may comment on an idle instability, low idle speed or rough
idle.</P><A name=ss2-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss2-1527156">
<H5>Cause</A></H5>
Condition may be caused by deposits in the throttle body bore.</P><A
name=ss3-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss3-1527156">
<H5>Correction</A></H5>
Clean throttle body bore and throttle valve plate of carbon using a shop rag
and an appropriate cleaner. Refer to Engine Controls Repair Procedures -
Throttle Body Cleaning Procedure. This procedure may be performed at any mileage
necessary. Check to determine if the PCM calibration has been previously updated
to one that includes the update for throttle body coking. For 2003 model year
vehicles, look in the operating system portion of the calibration. For 2000-2002
model year vehicles, look in the engine portion of the calibration. If not, then
update the PCM calibration to the latest calibration.</P><A name=ss4-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss4-1527156">
<H5>Warranty Information</A></H5>
For vehicles repaired under warranty, use:</P>
<TABLE width="100%" border=1>
<TBODY>
<TR>
<TH vAlign=bottom align=middle>
Labor Operation</P></TH>
<TH vAlign=bottom align=middle>
Description</P></TH>
<TH vAlign=bottom align=middle>
Labor Time</P></TH></TR>
<TR>
<TD vAlign=center align=middle>
J5480</P></TD>
<TD vAlign=center align=middle>
Throttle Body - Clean and Adjust</P></TD>
<TD vAlign=center align=middle>
0.2 hr</P></TD></TR>
<TR>
<TD align=middle>
Add:</P></TD>
<TD vAlign=center align=middle>
To Reprogram PCM</P></TD>
<TD vAlign=center align=middle>
0.4 hr</P></TD></TR></TBODY></TABLE>
</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>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1527156
2003 HUMMER
H2</TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#2
07-26-2004, 10:34 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# 1527156
2003 HUMMER
H2</TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean
Throttle Body) #04-06-04-040 - (06/14/2004)</H1>Idle Instability, Low or Rough
Idle with Electronic Throttle Control (Clean Throttle Body)
2002-2003 Cadillac Escalade, Escalade EXT</P>
2000-2003 Chevrolet Silverado, Suburban, Tahoe</P>
2002-2003 Chevrolet Avalanche</P>
2000-2003 GMC Sierra, Yukon, Yukon XL</P>
2003 Hummer H2</P>
with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, Z, N, U - RPOs LR4, LM7, L59,
LQ9, LQ4)</P>
and Electronic Throttle Control</P><A name=ss1-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss1-1527156">
<H5>Condition</A></H5>
Some owners may comment on an idle instability, low idle speed or rough
idle.</P><A name=ss2-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss2-1527156">
<H5>Cause</A></H5>
Condition may be caused by deposits in the throttle body bore.</P><A
name=ss3-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss3-1527156">
<H5>Correction</A></H5>
Clean throttle body bore and throttle valve plate of carbon using a shop rag
and an appropriate cleaner. Refer to Engine Controls Repair Procedures -
Throttle Body Cleaning Procedure. This procedure may be performed at any mileage
necessary. Check to determine if the PCM calibration has been previously updated
to one that includes the update for throttle body coking. For 2003 model year
vehicles, look in the operating system portion of the calibration. For 2000-2002
model year vehicles, look in the engine portion of the calibration. If not, then
update the PCM calibration to the latest calibration.</P><A name=ss4-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc=sm#ss4-1527156">
<H5>Warranty Information</A></H5>
For vehicles repaired under warranty, use:</P>
<TABLE width="100%" border=1>
<TBODY>
<TR>
<TH vAlign=bottom align=middle>
Labor Operation</P></TH>
<TH vAlign=bottom align=middle>
Description</P></TH>
<TH vAlign=bottom align=middle>
Labor Time</P></TH></TR>
<TR>
<TD vAlign=center align=middle>
J5480</P></TD>
<TD vAlign=center align=middle>
Throttle Body - Clean and Adjust</P></TD>
<TD vAlign=center align=middle>
0.2 hr</P></TD></TR>
<TR>
<TD align=middle>
Add:</P></TD>
<TD vAlign=center align=middle>
To Reprogram PCM</P></TD>
<TD vAlign=center align=middle>
0.4 hr</P></TD></TR></TBODY></TABLE>
</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>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1527156
2003 HUMMER
H2</TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
#3
07-26-2004, 10:34 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# 1527156
2003 HUMMER
H2</TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE>
<HR>
</FORM>
<H1>Idle Instability, Low or Rough Idle with Electronic Throttle Control (Clean
Throttle Body) #04-06-04-040 - (06/14/2004)</H1>Idle Instability, Low or Rough
Idle with Electronic Throttle Control (Clean Throttle Body)
2002-2003 Cadillac Escalade, Escalade EXT</P>
2000-2003 Chevrolet Silverado, Suburban, Tahoe</P>
2002-2003 Chevrolet Avalanche</P>
2000-2003 GMC Sierra, Yukon, Yukon XL</P>
2003 Hummer H2</P>
with 4.8L, 5.3L or 6.0L V8 Engine (VINs V, T, Z, N, U - RPOs LR4, LM7, L59,
LQ9, LQ4)</P>
and Electronic Throttle Control</P><A name=ss1-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc= sm#ss1-1527156">
<H5>Condition</A></H5>
Some owners may comment on an idle instability, low idle speed or rough
idle.</P><A name=ss2-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc= sm#ss2-1527156">
<H5>Cause</A></H5>
Condition may be caused by deposits in the throttle body bore.</P><A
name=ss3-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc= sm#ss3-1527156">
<H5>Correction</A></H5>
Clean throttle body bore and throttle valve plate of carbon using a shop rag
and an appropriate cleaner. Refer to Engine Controls Repair Procedures -
Throttle Body Cleaning Procedure. This procedure may be performed at any mileage
necessary. Check to determine if the PCM calibration has been previously updated
to one that includes the update for throttle body coking. For 2003 model year
vehicles, look in the operating system portion of the calibration. For 2000-2002
model year vehicles, look in the engine portion of the calibration. If not, then
update the PCM calibration to the latest calibration.</P><A name=ss4-1527156><A
href="http://127.0.0.1:9001/servlets/BlobShtml?ShtmlFile=1527156&pubid=293&evc= sm#ss4-1527156">
<H5>Warranty Information</A></H5>
For vehicles repaired under warranty, use:</P>
<TABLE width="100%" border=1>
<TBODY>
<TR>
<TH vAlign=bottom align=middle>
Labor Operation</P></TH>
<TH vAlign=bottom align=middle>
Description</P></TH>
<TH vAlign=bottom align=middle>
Labor Time</P></TH></TR>
<TR>
<TD vAlign=center align=middle>
J5480</P></TD>
<TD vAlign=center align=middle>
Throttle Body - Clean and Adjust</P></TD>
<TD vAlign=center align=middle>
0.2 hr</P></TD></TR>
<TR>
<TD align=middle>
Add:</P></TD>
<TD vAlign=center align=middle>
To Reprogram PCM</P></TD>
<TD vAlign=center align=middle>
0.4 hr</P></TD></TR></TBODY></TABLE>
</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>
<TBODY>
<TR>
<TD width="25%" slign="LEFT"></TD>
<TD align=middle width="50%">Document ID# 1527156
2003 HUMMER
H2</TD>
<TD align=right width="25%"></TD></TR></TBODY></TABLE></FORM></BODY></HTML>
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