Thread: Klaus - need your help!
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Old 04-02-2004, 11:00 PM
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Klaus Klaus is offline
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<TD align=middle width="50%">Document ID# 824695
2003 HUMMER
H2 </TD>
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<H1>Noise Diagnosis - Front Suspension</H1>
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Step</P></TH>
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Action</P></TH>
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Yes</P></TH>
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No</P></TH></TR>
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<TD vAlign=top align=left colSpan=4>


DEFINITION: Any noise emitted from the front of the vehicle that is
induced by VEHICLE SPEED or DRIVING TERRAIN as related to the front
suspension.</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S01>


1</P></A></TD>
<TD vAlign=top align=left>


Did you review the General Description and perform the necessary
Inspections?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step2
</P></TD>
<TD vAlign=bottom align=middle>


Go to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62585&amp;RefDoc=824695">Sympto ms
- Suspension General Diagnosis</A> </P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S02>


2</P></A></TD>
<TD vAlign=top align=left>


Attempt to duplicate the condition. Road test the vehicle.</P>


Did you duplicate the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step3
</P></TD>
<TD vAlign=bottom align=middle>


System OK</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S03>


3</P></A></TD>
<TD vAlign=top align=left>


Is the noise reactive to vehicle load or speed?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step4
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step7
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S04>


4</P></A></TD>
<TD vAlign=top align=left>


Inspect the tires for the following condition: </P>
<UL type=BULLET>
<LI>Proper tire Inflation and adjust as necessary. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=53260&amp;RefDoc=824695">Tire
Inflation Pressure Specifications</A> in Maintenance and Lubrication.
<LI>Unusual tire wear. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=62593&amp;RefDoc=824695">Vibrat ion
Analysis - Tire and Wheel</A> in Vibration Diagnosis and Correction.
<LI>Inspect the wheel nuts for looseness and tighten as necessary. Refer
to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=59491&amp;RefDoc=824695">Fasten er
Tightening Specifications</A> in Tires and Wheels. </LI>[/list]

Did you find and correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step5
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S05>


5</P></A></TD>
<TD vAlign=top align=left>


Inspect the front wheel bearings. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=59079&amp;RefDoc=824695">Wheel
Bearings Diagnosis</A> . </P>


Did you find and correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step6
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S06>


6</P></A></TD>
<TD>


Inspect for front axle noises. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=64694&amp;RefDoc=824695">Sympto ms
- Front Drive Axle</A> in Front Drive Axle .</P>


Did you find and correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step7
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S07>


7</P></A></TD>
<TD>


Bounce the front of the vehicle in order to duplicate the noise. </P>


Did you duplicate the noise? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step8
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step9
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S08>


8</P></A></TD>
<TD>
  1. <LI type=1>Raise and support the vehicle. Refer to <A
    href="http://127.0.0.1:9001/servlets/CellHandler?CellId=47852&amp;RefDoc=824695">Liftin g
    and Jacking the Vehicle</A> in General Information.
    <LI type=1>Inspect the front suspension components for looseness. Refer
    to <A
    href="http://127.0.0.1:9001/servlets/CellHandler?CellId=47647&amp;RefDoc=824695">Fasten er
    Tightening Specifications</A> .
    <LI type=1>Inspect the front suspension components for damage and repair
    as necessary. </LI>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step9
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S09>


9</P></A></TD>
<TD vAlign=top align=left>
  1. <LI type=1>Install the J 39570
    Chassis Ear or equivalent.
    <LI type=1>Bounce the front of the vehicle, using the J 39570
    or equivalent in order to locate the source of the noise. If necessary
    road test the vehicle.
    <LI type=1>Repair or replace any damaged components as necessary.
    </LI>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step10
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S10>


10</P></A></TD>
<TD vAlign=top align=left>


Inspect the ball joints and steering components for the following
conditions. </P>
<UL type=BULLET>
<LI>Lack of lubrication where applicable.
<LI>Looseness in the ball joints.
<LI>Looseness in the steering linkage. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=58420&amp;RefDoc=824695">Steeri ng
Linkage Inspection</A> in Steering Linkage (Non Rack and Pinion).
<LI>Looseness in the tie rods. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=58446&amp;RefDoc=824695">Tie
Rod Replacement - Outer</A> or <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=58437&amp;RefDoc=824695">Tie
Rod Replacement - Inner</A> in Steering Linkage (Non Rack and Pinion).
</LI>[/list]

Did you find and correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step11
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S11>


11</P></A></TD>
<TD vAlign=top align=left>


Inspect for damaged shock absorbers. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=59163&amp;RefDoc=824695">Struts
or Shock Absorbers On-Vehicle Testing</A> .</P>


Did you find and correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step12
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S12>


12</P></A></TD>
<TD vAlign=top align=left>


Inspect the front stabilizer shaft and stabilizer shaft links for
damage and repair as necessary. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=47663&amp;RefDoc=824695">Stabil izer
Shaft Replacement</A> in Front Suspension.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


Go to Step13
</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S13>


13</P></A></TD>
<TD vAlign=top align=left>


Inspect for control arm damage and repair as necessary. Refer to <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=47659&amp;RefDoc=824695">Lower
Control Arm Replacement</A> or <A
href="http://127.0.0.1:9001/servlets/CellHandler?CellId=47676&amp;RefDoc=824695">Upper
Control Arm Replacement</A> in Front Suspension.</P>


Did you find and correct the condition?</P></TD>
<TD vAlign=bottom align=middle>


Go to Step14
</P></TD>
<TD vAlign=bottom align=middle>


--</P></TD></TR>
<TR>
<TD vAlign=center align=middle><A name=S14>


14</P></A></TD>
<TD vAlign=top align=left>


Operate the system in order to verify the repair. </P>


Did you correct the condition? </P></TD>
<TD vAlign=bottom align=middle>


System OK </P></TD>
<TD vAlign=bottom align=middle>


Go to Step3
</P></TD></TR></TBODY></TABLE>
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<TD align=middle width="50%">Document ID# 824695
2003 HUMMER
H2 </TD>
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