Hi,

I am having a weird knocking sound when a hit a bump! I did change all my suspension bushing (Front Sway bar, Front Leaf Spring bushing). No Changes. The sound seems to be just underneath my feet ! Driver side! I can hear it and also feel it! Dont know where to look anymore !!! and it drives me crazy!

04 F250 4x4 CrewCab FX4 6.0

 

Did you check the shock bolts/bushings?? That's just one idea... The real problem is likely your ball joints... I had to do mine (well, have mine done) and then life was wonderful again. I was $800.00 lighter, but the truck was never better...

 

I forgot to mention it, All ***** joint are brand new also !! I heard that it could be the steering box play !!!

Did not check the shock bolts/bushing !!

 

Drag link/center link also changed??
How high are you lifted??

 

Drag link/Center link was not changed!
As for my lift ! It is a stock XLT/FX4 !

 

did you ck your sway bar links? those knock for sure when bumps are hit

 

Yeah Front Sway bar bushing were change (Energy Suspension Bushing)!

 

<table border="1" cellpadding="3" cellspacing="0" rules="groups" width="90%"><caption>Symptom Chart—Suspension Noise/Vibration</caption> <colgroup> </colgroup><colgroup> </colgroup><colgroup> </colgroup><tbody> <tr> <th>Condition</th> <th>Possible Sources</th> <th>Action</th></tr> </tbody><tbody></tbody> <tbody> <tr valign="top"> <td>

• Squeak or grunt—noise from the front suspension, occurs more in cold ambient temperatures. More noticeable over rough roads or when turning

</td> <td>

• Front stabilizer bar insulators.

</td> <td>

• Under these conditions, the noise is acceptable. CHECK TSBs for applicable vehicle.

</td></tr> </tbody><tbody></tbody> <tbody> <tr valign="top"> <td>

• Clunk—noise from the front suspension, occurs in and out of turns

</td> <td>

• Loose front struts or shocks.

</td> <td>

• INSPECT for loose nuts or bolts. TIGHTEN to specifications.

</td></tr></tbody></table>
<table border="1" cellpadding="3" cellspacing="0" rules="groups" width="90%"><tbody><tr valign="top"><td>

• Front suspension noise—a squeak, creak or rattle noise. Occurs mostly over bumps or rough roads

</td> <td>

• Steering components.
• Loose or bent front struts or shock absorbers.
• Damaged spring or spring mounts.
• Damaged or worn control/radius arm bushings.
• Worn or damaged stabilizer bar bushings or links.

</td> <td>

• Go To Pinpoint Test H.

</td></tr></tbody></table>
PINPOINT TEST H: FRONT SUSPENSION NOISE

<table border="1" cellpadding="3" cellspacing="0" width="96%"> <tbody> <tr> <th>Test Step</th> <th>Result / Action to Take</th></tr> <tr> <td> H1 ROAD TEST THE VEHICLE</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• Test drive the vehicle.
• NOTE: An assistant will be needed for this road test.
• During the road test, drive the vehicle over a rough road. Using ChassisEARs, determine from which area/component the noise is originating.
• Is there a squeak, creak or rattle noise?

</td> <td style="border-top: medium none;">Yes
GO to H2.

No
The suspension system is OK. CONDUCT a diagnosis on other suspect systems.</td></tr> <tr> <td> H2 INSPECT THE STEERING SYSTEM</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• [img]/pubs/auxf/%7EWS-V-B/3836/ani_caut.gif[/img] WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.
• Raise and support the vehicle.
• Check the steering system for wear or damage. Carry out a steering linkage test. Refer to Section 211-00.
• Inspect the tire wear pattern. Refer to Tire Wear Patterns chart in this section.
• Are the steering components worn or damaged?

</td> <td style="border-top: medium none;">Yes
REPAIR the steering system. INSTALL new components as necessary. TEST the system for normal operation.

No
GO to H3.</td></tr> <tr> <td> H3 FRONT SHOCK ABSORBER/STRUT CHECK</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• Check the front shock absorber/strut mounts for loose bolts or nuts.
• Check the front shock absorbers/struts for damage. Carry out a "bounce test".
• Are the front shock absorbers/struts loose or damaged?

</td> <td style="border-top: medium none;">Yes
TIGHTEN to specifications if loose. INSTALL new front shock absorbers/struts if damaged. TEST the system for normal operation.

No
GO to H4.</td></tr> <tr> <td> H4 CHECK THE FRONT SPRINGS</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• Check the front spring and front spring mounts/brackets for wear or damage.
• Are the front springs or spring mounts/brackets worn or damaged?

</td> <td style="border-top: medium none;">Yes
REPAIR or INSTALL new components as necessary. TEST the system for normal operation.

No
GO to H5.</td></tr> <tr> <td> H5 CHECK THE CONTROL ARMS/RADIUS ARMS</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• Inspect the control arm bushings for wear or damage.
• Inspect for twisted or bent control arms /radius arms.
• Are the control arms/radius arms damaged or worn?

</td> <td style="border-top: medium none;">Yes
REPAIR or INSTALL new components as necessary. TEST the system for normal operation.

No
GO to H6.</td></tr> <tr> <td> H6 CHECK THE STABILIZER BAR/TRACK BAR</td> <td style="border-bottom: medium none;"> </td></tr> <tr valign="top"> <td>

• Check the stabilizer bar/track bar bushings and links for damage or wear.
• Check the stabilizer bar/track bar for damage.
• Check for loose or damaged stabilizer bar isolators or brackets.
• Are the stabilizer bar/track bar components loose, worn or damaged?

</td> <td style="border-top: medium none;">Yes
REPAIR or INSTALL new components as necessary. TEST the system for normal operation.

No
Suspension system OK. CONDUCT diagnosis on other suspect systems.</td></tr></tbody></table>

 

yea but what about the links that go to the frame?

 

Just follow the Ford service procedure guide... despite popular belief, they do know what they're talking about most of the time.