2006 FORD S-MAX suspension

Noise, \bibra\fion and Harshness - Noise,
\bibra\fion and Harshness (N\bH)S-MAX/G\bl\bxy\f2006.5\f(02/2006-)\fPrint \f
Diagnosis and Tes\fing
Inspec\fion and \berifica\fion
1. 1.
Verify\fthe\fcustomer\fconcern.\f
2

. 2.
Visu\blly\finspect\ffor\fobvious\fsigns\fof\fmech\bnic\bl\for\felectric\bl\fd\bm\bge.\f
3

. 3.
If\f\bn\fobvious\fc\buse\ffor\f\bn\fobserved\for\freported\fconcern\fis\ffound,\fcorrect\fthe\fc\buse\f
(if\fpossible)\fbefore\fproceeding\fto\fthe\fnext\fstep.\f
4. 4.
If\fthe\fconcern\fis\fnot\fvisu\blly\fevident,\fverify\fthe\fsymptom\f\bnd\fREFER\fto\fthe\f
S
ymptom\fCh\brt.\f
How \fo Use \fhis Diagnos\fic Procedure Sec\fion

Noise,\fvibr\btion\f\bnd\fh\brshness\f(NVH)\fconcerns\fh\bve\fbecome\fmore\fimport\bnt\f\bs\fvehicles\f
h\bv

e\fbecome\fmore\fsensitive\fto\fthese\fvibr\btions.\fThis\fsection\fis\fdesigned\fto\f\bid\fin\f
identifying\fthese\fconcerns.\f\f

The\fsection\fprovides\fdi\bgnostic\fprocedures\fb\bsed\fon\fsymptom.\fIf\fthe\fcondition\foccurs\f\bt\f
high\fspeed,\ffor\finst\bnce,\fthe\fmost\flikely\fpl\bce\fto\fst\brt\fis\funder\fSh\bke\f\bnd\fVibr\btion\fWhile\f
Driving.\f\f

The\fro\bd\ftest\fprocedure\fwill\ftell\fhow\fto\fsort\fthe\fconditions\finto\fc\btegories\f\bnd\fhow\fto\ftell\f
\b\fv

ibr\btion\ffrom\f\b\fsh\bke.\f\f

A\fseries\fof\fRo\bd\fTest\fQuick\fChecks\f\bre\fprovided\fto\fm\bke\fsure\fth\bt\f\b\fc\buse\fis\feither\f
pi

npointed\for\felimin\bted.\f\f

N\bme\fthe\fcondition,\fproceed\fto\fthe\f\bppropri\bte\fsection\f\bnd\floc\bte\fthe\fcorrect\fdi\bgnosis.\f
Wh

en\fthe\fcondition\fis\fidentified,\fthe\fjob\fis\fp\brtly\fdone.\f\f

Follow\fthe\fdi\bgnostic\fprocedure\f\bs\foutlined.\f\f

Quick\fChecks\f\bre\fdescribed\fwithin\fthe\fstep,\fwhile\fmore\finvolved\ftests\f\bnd\f\bdjustments\f
\bre

\foutlined\fin\fGener\bl\fProcedures.\f\f

Alw\bys\ffollow\fe\bch\fstep\fex\bctly\f\bnd\fm\bke\fnotes\fto\frec\bll\fimport\bnt\ffindings\fl\bter.\f
Cus\fomer In\ferview
The\fro\bd\ftest\f\bnd\fcustomer\finterview\f(if\f\bv\bil\bble)\fprovide\finform\btion\fth\bt\fwill\fhelp\f
i d

entify\fthe\fconcern\f\bnd\fwill\fprovide\fdirection\fto\fthe\fcorrect\fst\brting\fpoint\ffor\fdi\bgnosis.\f
Iden\fify \fhe Condi\fion
NVH\fusu\blly\foccur\fin\ffour\f\bre\bs:\f

tires\f\f

engine\f\bccessories\f\f

suspension\f\f

driveline\f
It\fis\fimport\bnt,\ftherefore,\fth\bt\f\bn\fNVH\fconcern\fbe\fisol\bted\finto\fits\fspecific\f\bre\b(s)\f\bs\fsoon\f
\bs
\fpossible.\fThe\fe\bsiest\f\bnd\fquickest\fw\by\fto\fdo\fthis\fis\fto\fc\brry\fout\fthe\fRo\bd\fTest\f\bs\f
outlined.\fTo\f\bssist\fin\fthe\fdi\bgnosis\f\bnd\ftesting\fprocedure(s),\fuse\f\b\fsuit\bble\f\bpproved\fNVH\f
di\bgnosis\ftester.\f
Noise Diagnos\fic Procedure
Non-Axle Noise
The\ffive\fmost\fcommon\fsources\fof\fnon-\bxle\fnoise\f\bre\fexh\bust,\ftires,\froof\fr\bcks,\ftrim\fp\bnels\f
\b n

d\ftr\bnsmission.\f
Стр. 1 из 15
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Therefore,\fm\bke\fsure\fth\bt\fnone\fof\fthe\ffollowing\fconditions\f\bre\fthe\fc\buse\fof\fthe\fnoise\f
before\fproceeding\fwith\f\b\fdriveline\fte\brdown\f\bnd\fdi\bgnosis.\f
In\fcert\bin\fconditions,\fthe\fpitch\fof\fthe\fexh\bust\fm\by\fsound\fvery\fmuch\flike\fge\br\fnoise.\fAt\f
ot

her\ftimes,\fit\fc\bn\fbe\fmist\bken\ffor\f\b\fwheel\fbe\bring\frumble.\f\f

Tires,\fespeci\blly\fsnow\ftires,\fc\bn\fh\bve\f\b\fhigh\fpitched\ftre\bd\fwhine\for\fro\br,\fsimil\br\fto\fge\br\f
no

ise.\fR\bdi\bl\ftires\fm\by\fh\bve\fthis\fch\br\bcteristic.\fAlso,\f\bny\fnon-st\bnd\brd\ftire\fwith\f\bn\f
unusu\bl\ftre\bd\fconstruction\fm\by\femit\f\b\fro\br\for\fwhine\fnoise.\f\f

Trim\fp\bnels\fc\bn\f\blso\fc\buse\fwhistling\for\fwhining\fnoise.\f\f

Clunk\fm\by\fbe\f\b\fmet\bllic\fnoise\fhe\brd\fwhen\fthe\f\butom\btic\ftr\bns\bxle\fis\feng\bged\fin\f
"R

"\f(REVERSE)\for\f"D"\f(DRIVE)\for\fit\fm\by\foccur\fwhen\fthe\fthrottle\fis\f\bpplied\for\frele\bsed.\fIt\f
is\fc\bused\fby\fb\bckl\bsh\fsomewhere\fin\fthe\fdriveline.\f\f

Be\bring\frumble\fsounds\flike\fm\brbles\fbeing\ftumbled.\fThis\fcondition\fis\fusu\blly\fc\bused\fby\f\b\f
d\bm

\bged\fwheel\fbe\bring.\f
Noise Condi\fions

Ge\br\fnoise\fis\ftypic\blly\f\b\fhowling\for\fwhining\fdue\fto\fge\br\fd\bm\bge\for\fincorrect\fbe\bring\f
pr

elo\bd.\fIt\fc\bn\foccur\f\bt\fv\brious\fspeeds\f\bnd\fdriving\fconditions,\for\fit\fc\bn\fbe\fcontinuous.\f\f

Chuckle\fis\f\b\fp\brticul\br\fr\bttling\fnoise\fth\bt\fsounds\flike\f\b\fstick\f\bg\binst\fthe\fspokes\fof\f\b\f
sp

inning\fbicycle\fwheel.\fIt\foccurs\fwhile\fdeceler\bting\ffrom\f64\fkm/h\f(40\fmph)\f\bnd\fc\bn\f
usu\blly\fbe\fhe\brd\f\bll\fthe\fw\by\fto\f\b\fstop.\fThe\ffrequency\fv\bries\fwith\fvehicle\fspeed.\f\f

Knock\fis\fvery\fsimil\br\fto\fchuckle,\fthough\fit\fm\by\fbe\flouder\f\bnd\foccurs\fon\f\bcceler\btion\for\f
de

celer\btion.\fThe\fte\brdown\fwill\fdisclose\fwh\bt\fh\bs\fto\fbe\fcorrected.\f
Clicking,\fpopping\for\fgrinding\fnoises\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f
worn,\fd\bm\bged\for\fincorrectly\finst\blled\fwheel\fbe\bring,\fsuspension\for\fbr\bke\fcomponent.\f
Check\f\bnd\frule\fout\ftires,\fexh\bust\f\bnd\ftrim\fitems\fbefore\fdis\bssembling\fthe\ftr\bnsmission\fto\f
di
\bgnose\f\bnd\fcorrect\fge\br\fnoise.\f
The\fnoises\fdescribed\funder\fRo\bd\fTest\fusu\blly\fh\bve\fspecific\fc\buses\fth\bt\fc\bn\fbe\fdi\bgnosed\f
by\fobserv\btion\f\bs\fthe\funit\fis\fdis\bssembled.\fThe\finiti\bl\fclues\f\bre\fthe\ftype\fof\fnoise\fhe\brd\fon\f
the\fro\bd\ftest\f\bnd\fdriving\fconditions.\f
\bibra\fion Condi\fions
Vibr\btion\f\bt\fhighw\by\fspeeds\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f

out-of-b\bl\bnce\ffront\for\fre\br\fwheels.\f\f

out-of-round\ftires.\f
Shudder\for\fvibr\btion\fduring\f\bcceler\btion\fm\by\fbe\fc\bused\fby\fthe\ffollowing:\f
d\bm\bged\fpowertr\bin/drivetr\bin\fmounts.\f\f

excessively\fhigh\fconst\bnt\fvelocity\f(CV)\fjoint\foper\bting\f\bngles\fc\bused\fby\fincorrect\fride\f
he

ight.\fCheck\fride\fheight,\fverify\fcorrect\fspring\fr\bte\f\bnd\fcheck\fitems\funder\finoper\btive\f
conditions.\f
Road Tes\f
A\f
ge\br-driven\funit\fwill\fproduce\f\b\fcert\bin\f\bmount\fof\fnoise.\fSome\fnoise\fis\f\bccept\bble\f\bnd\f
m\by\fbe\f\budible\f\bt\fcert\bin\fspeeds\for\funder\fv\brious\fdriving\fconditions,\f\bs\fon\f\b\fnewly\fp\bved\f
\bsph\blt\fro\bd.\fThe\fslight\fnoise\fis\fin\fno\fw\by\fdetriment\bl\f\bnd\fmust\fbe\fconsidered\fnorm\bl.\f
The\fro\bd\ftest\f\bnd\fcustomer\finterview\f(if\f\bv\bil\bble)\fprovide\finform\btion\fneeded\fto\fidentify\f
the\fcondition\f\bnd\fgive\fdirection\fto\fthe\fcorrect\fst\brting\fpoint\ffor\fdi\bgnosis.\f
1. 1.
M\bke\fnotes\fthroughout\fthe\fdi\bgnosis\froutine.\fM\bke\fsure\fto\fwrite\fdown\feven\fthe\f
Стр. 2 из 15
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d\bm\bged\fpowertr\bin/drivetr\bin\fmounts.\f
Road Condi\fions
An
\fexperienced\ftechnici\bn\fwill\f\blw\bys\fest\bblish\f\b\froute\fth\bt\fwill\fbe\fused\ffor\f\bll\fNVH\f
di\bgnosis\fro\bd\ftests.\fThe\fro\bd\fselected\fshould\fbe\fre\bson\bbly\fsmooth,\flevel\f\bnd\ffree\fof\f
undul\btions\f(unless\f\b\fp\brticul\br\fcondition\fneeds\fto\fbe\fidentified).\fA\fsmooth\f\bsph\blt\fro\bd\f
th\bt\f\bllows\fdriving\fover\f\b\fr\bnge\fof\fspeeds\fis\fbest.\fGr\bvel\for\fbumpy\fro\bds\f\bre\funsuit\bble\f
bec\buse\fof\fthe\f\bddition\bl\fro\bd\fnoise\fproduced.\fOnce\fthe\froute\fis\fest\bblished\f\bnd\f
consistently\fused,\fthe\fro\bd\fnoise\fv\bri\bble\fis\felimin\bted\ffrom\fthe\ftest\fresults.\f
NOTE:\fSome\fconcerns\fm\by\fbe\f\bpp\brent\fonly\fon\fsmooth\f\bsp
h\blt\fro\bds.\f
If\f\b\fcustomer\fcompl\bins\fof\f\b\fnoise\for\fvibr\btion\fon\f\b\fp
\brticul\br\fro\bd\f\bnd\fonly\fon\f\b\fp\brticul\br\f
ro\bd,\fthe\fsource\fof\fthe\fconcern\fm\by\fbe\fthe\fro\bd\fsurf\bce.\fIf\fpossible,\ftry\fto\ftest\fthe\fvehicle\f
on\fthe\fs\bme\ftype\fof\fro\bd.\f
\behicle Prepara\fion
C\brry\fout\f\b\fthorough\fvisu\bl\finspection\fof\fthe\fvehicle\fbefore\fc\brrying\fout\fthe\fro\bd\ftest.\fNote\f
\bnything\fwhich\fis\funusu\bl.\fDo\fnot\frep\bir\for\f\bdjust\f\bny\fcondition\funtil\fthe\fro\bd\ftest\fis\f
c\brried\fout,\funless\fthe\fvehicle\fis\finoper\btive\for\fthe\fcondition\fcould\fpose\f\b\fh\bz\brd\fto\fthe\f
technici\bn.\fAfter\fverifying\fth\bt\fthe\fcondition\fh\bs\fbeen\fcorrected,\fm\bke\fsure\f\bll\fcomponents\f
removed\fh\bve\fbeen\finst\blled.\f
Power S\feering Condi\fions
Check\ffor\fthe\fnoise\fin\fthe\ffollowing\fconditions\fto\fverify\fthe\fcustomer\fconcern.\f

Check\ffor\fthe\fnoise\fin\fsever\bl\ftemper\bture\fconditions.\f\f

Is\fthe\fnoise\ffrom\fwhen\fthe\fvehicle\fw\bs\fnew?\f\f

C\bn\fthe\fnoise\fbe\frepe\bted\fconst\bntly\for\fis\fit\fr\bndom?\f\f

Check\fthe\fcondition\fof\fthe\fvehicle\f\bge,\fmile\bge\f\bnd\fservice\frecord.\f\f

Interview\fthe\fcustomer\fto\ffind\fthe\foper\bting\fcondition\fin\fwhich\fthe\fnoise\fwill\foccur.\fTest\f
th

e\fvehicle\fb\bsed\fon\fthe\fdet\bil(s)\ffrom\fthe\fcustomer\finterview.\f\f

Follow\fthe\fpower\fsteering\foper\btion\fnoise\fcondition\ft\bbles\fbelow,\fto\ffind\fwhich\fcondition\f
th

e\fnoise\fwill\foccur.\f
Power S\feering Opera\fion Noise Check
S t

ep\f1:\fCheck\ffor\fNVH\fconcerns\ffrom\fnon-steering\fcomponents,\fwhich\fm\by\fsound\flike\f
noises\fcoming\ffrom\fthe\fsteering\fsystem.\f
N\bH concerns from o\fher componen\fs
Power a\b\bi\bted \bteeri\fg operati\fg co\fditio\f
Parki\fgDrivi\fg
Steering\fcentr\bl/slightly\f
off\fcenterSteering\f\bt\f\b\fsteering\f
lock\fstopDriving\fstr\bight\f\bhe\bdCornering\fcondition
REFER\fto\fNVH\fconcerns\f
from\fother\fcomponents\f
column\fAREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fBREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fCREFER\fto\fNVH\f
concerns\ffrom\fother\f
components\fcolumn\fD
NVH co\fcer\f\b from other co\fditio\f (colum\f A to D)
Noi\beDrivi\fg Co\fditio\fABCD
Ped\bl\fbox\fknockingDrive\foff,\fstop\fdriving\f\bnd\fslow\fcornering\fover\f
uneven\fro\bdsXXOX
St\bbilizer\fb\br\flink\fknockingDrive\foff,\fdriving\f\bnd\fcorneringXOOX
Engine\fsupport\finsul\btor\fknockingDrive\foff,\fdriving,\f\bcceler\btion\f\bnd\fdeceler\btionXX
Air\fconditioning\fknockingEngine\fon,\f\bctiv\bte\fswitch\ffor\f\bir\fconditioningXXOO
Suspension\fknocking\f(Subfr\bme,\f
Springs)Drive\foff,\fdriving,\fcornering,\f\bcceler\btion\f\bnd\f
deceler\btionXOX
Const\bnt\fvelocity\f(CV)\fjoint\fDrive\foff,\fdriving,\fcornering,\f\bcceler\btion\f\bnd\fXOX
Стр. 4 из 15
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X\f=\fNoise\fwill\fmost\flikely\foccur\fin\fthis\foper\bting\fcondition.\f\f

O\f=\fNoise\fc\bn\fpossibly\foccur\fin\fthis\foper\bting\fcondition.\f\f

Bl\bnk\f=\fNoise\fis\funlikely\fto\foccur\fin\fthis\foper\bting\fcondition.\f
Step\f2:\fCheck\ffor\fsteering\fsystem\fNVH\fconcerns\f\bccording\fto\foper\btion\fcondition\fdescribed\f
\bt
\fthe\fcustomer\finterview.\f
S\feering sys\fem N\bH concerns

X\f=\fNoise\fwill\fmost\flikely\foccur\fin\fthis\foper\bting\fcondition.\f\f

O\f=\fNoise\fc\bn\fpossibly\foccur\fin\fthis\foper\bting\fcondition.\f\f

Bl\bnk\f=\fNoise\fis\funlikely\fto\foccur\fin\fthis\foper\bting\fcondition.\f
Step\f3:\fAccording\fto\fe\bch\fidentified\foper\bting\fcondition\f(Column\fA,\fB,\fC,\fD,\fE,\fF),\fcheck\f
e \b

ch\fpossible\fSteering\fSystem\fNVH\fconcern\fwith\fthe\fdet\bil\fsymptom\fch\brts\fbelow.\f
knockingdeceler\btion
W\bsher\fbottleDeceler\btion,\f\bcceler\btion\f\bnd\fsingle\fimp\bctOX
Loose\fsuspension\fbolts\fAll\fdriving\fconditionsOOX
Instrument\fp\bnel\fr\bttle/sque\bkAll\fdriving\fconditions.\fEngine\frpm\fdepend\bntXXXX
Power a\b\bi\bted \bteeri\fg operati\fg co\fditio\f
Parki\fgDrivi\fg
Vehicle \btatio\fary with e\fgi\fe
off
Steering\f
centr\bl/slightly\foff\f
center
Steering\f\bt\f\b\f
steering\flock\f
stop
Steering\f
centr\bl/slightly\foff\f
center
Steering\f\bt\f\b\f
steering\flock\f
stop
Steering\f
centr\bl/slightly\foff\f
centre
Steering\f\bt\f\b\f
steering\flock\f
stop
REFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
A
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fBREFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
C
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fDREFER\fto\fsteering\f
system\fNVH\f
concerns\fcolumn\f
E
REFER\fto\f
steering\f
system\fNVH\f
concerns\f
column\fF
Steeri\fg Sy\btem operatio\f co\fditio\f (colum\f A to F)
Noi\beDrivi\fg co\fditio\fABCDEF
Mo\bnP\brking\fbetween\flock\fstops,\f\bt\fengine\fidle\f\bnd\f\blso\f
incre\bsed\fengine\fspeedXO
WhineDriving,\fhigh\fengine\frpm.\fMust\fbe\fpresent\ffrom\fnewOOXX
Hiss\b)\fP\brking\fbetween\flock\fstops.\fMust\fbe\fpresent\ffrom\fnewXXOO
b)\fHolding\fsteering\fwheel\f\bg\binst\flock\fstops.\fMust\fbe\f
present\ffrom\fnewX
Lock\fstop\fimp\bct\fknock\b)\fP\brking\f\bt\flock\fstop.\fMust\fbe\fpresent\ffrom\fnewXX
Mech\bnic\bl\fknock\f
(power\f\bssisted\f
steering\f(PAS)\foff)b)\fP\brking\fbetween\flock\fstops,\fengine\fOFF.\fMust\fbe\fpresent\f
from\fnew
X
Mech\bnic\bl\fKnock\f(PAS\f
on)
c)\fP\brking\fbetween\flock\fstops,\fengine\fON\f(b\bll\fjoint\fknock)X
H\bmmer\fknockd)\fP\brking\finto\flock\fstop\f\bnd\frele\bse\f(vehicle\fwith\fhydr\bulic\f
power\f\bssisted\fsteering\f(HPAS)\fonly,\fnot\ffor\fvehicles\fwith\f
electro-hydr\bulic\fpower\f\bssisted\fsteering\f(EHPAS))X
Hydr\bulic\fknock\f(clonk)e)\fDriving,\fcobble\fstones,\frough\fro\bd\f(clonk).\fMust\fbe\f
present\ffrom\fnewOX
Column\fknockf)\fP\brking,\fdriving.\fcobble\fstones\f\bnd\frough\fro\bdsXXOXXX
Column\fr\bttleM\binly\fdriving\fon\frough\fro\bdsOXXO
Toc-tocSteering\fleft\f\bnd\fright\f\bt\fhigh\ffrequency.\fMust\fbe\fpresent\f
from\fnewX
GrindingWhen\fturning\fsteering\fwheelXOX
ZipAt\fengine\fst\brt,\flow\ftemper\btures\fbelow\f-10°C\fonlyXO
Стр. 5 из 15
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Power S\feering Hammer Knock (Hydraulic) Noise
Test\fCondition\f
Li
sten\ffor\fsteering\fknock\fnoise\fwith\fthe\fengine\fspeed\f\bt\fidle\fin\fthe\ffollowing\ftest\fconditions\f
(for\fvehicles\fwith\fhydr\bulic\fpower\f\bssisted\fsteering\fonly,\fnot\felectro-hydr\bulic\fpower\f
steering).\f
1. 1.
Turn\fthe\fsteering\fwheel\fto\f\b\fsteering\flock\fposition\f\bnd\freturn\fquickly.\f
P

ower S\feering Hydraulic Knock/Clonk Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fknock/clonk\fnoise\fin\fthe\ffollowing\ftest\fconditions\fwith\fthe\fwindows\f
closed.\f
1. 1.
Drive\fover\fcobbled\fro\bds\f\bt\flow\fspeed\f10-30\fkm/h\f(6-20\fmph)\fwith\f\bnd\fwithout\f
t
urning.\f
2. 2.
Drive\fover\fstr\bight\ft\br\fstrips\fro\bd\fr\bils\for\f25\fmm\ft\bll\fh\brshness\fstrips\f\bt\flow\fspeed\f
1
0-30\fkm/h\f(6-20\fmph)\fboth\fdriving\fstr\bight\f\bnd\fwith\fmoder\bte\fturning.\f
Power S\feering Column Knock Noise
Test\fCondition\f
L i

sten\ffor\fsteering\fknock\fnoise\fin\fthe\ffollowing\ftest\fconditions\fwith\fwindows\fclosed.\f
1. 1.
Drive\fover\fcobbled\fstones\f\bt\flow\fspeed\f16-40\fkm/h\f(10-25\fmph)\fwith\f\bnd\fwithout\f
s
teering\finput\fc\brefully\flistening\ffor\fknock\fsounds.\f
2. 2.
Drive\fover\fstr\bight\ft\br\fstrips,\fro\bd\fr\bils\for\f25\fmm\ft\bll\fh\brshness\fstrips\f\bt\flow\f
s
peed\f16-40\fkm/h\f(10-25\fmph)\fboth\fdriving\fstr\bight\f\bnd\fwith\fmoder\bte\fcornering.\f
noise\f–\fcle\br\fknock\fnoise\ffrom\f
steering\fge\br\flink\bge\f\bre\b.joints\f(inner\f\bnd\f
outer\fb\bll\fjoints).
REFER\fto:\f Steering\fSystem\f(211-00\f
Ste
ering\fSystem\f-\fGener\bl\f
Inform\btion,\fDi\bgnosis\f\bnd\fTesting).\f
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock\fnoise\f–\floud,\fmet\bllic\f
sound\fif\fhitting\fthe\fsuspension\fcrossmember\fwith\f\b\f
h\bmmer\f(sounds\flike\fmet\bllic\fnoise\fbut\fis\fcre\bted\fby\f
pressure\fimpulse\fin\fge\br\f\bnd\freturn\fline).Hydr\bulic\fnoise\f
cre\bted\fby\f
pressure\f
impulses.Cert\bin\f\bmount\fof\f
noise\flevel\f\bccept\bble,\f
not\f\b\fs\bfety\fcritic\bl\f
item.
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fknock/clonk\fnoise\f–\fsounds\f
\blmost\fidentic\bl\fto\fcolumn\fknock\fth\bt\foccurs\fwhen\f
driving\f\bnd\fcornering\fover\fcobbled\fstones\for\frough\f
ro\bds.\fNoise\fm\by\f\bppe\br\fto\fem\bn\bte\ffrom\f\b\floc\btion\f
closer\fto\fthe\ffloor\fth\bn\fth\bt\ffor\fcolumn\fknock\f(Sounds\f
like\fmet\bllic\fnoise\fbut\fis\fcre\bted\fby\fpressure\fimpulse\fin\f
ge\br\f\bnd\freturn\fline\f–\fsimil\br\fto\f\b\fsound\flike\fquickly\f
turning\foff\f\b\fw\bter\ft\bp).
Power\fsteering\f
return\flines.
Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
High\fpower\f\bssist\f
g\bin\fof\fpower\f
steering\fge\br\f
v\blve\f(steering\f
ge\br\fdesign\f-\fno\f
qu\blity\fissue).Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
High\fpower\f
steering\fpump\f
flow\fr\bte\f(by\f
design).Cert\bin\f\bmount\f
of\fnoise\flevel\f
\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\f
item.
Стр. 9 из 15
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Power S\feering Zip Noise
Driveline Noise and \bibra\fion
Suspension Noise and \bibra\fion
Pinpoin\f Tes\fs
NO

TE:\fThese\fPinpoint\fTests\f\bre\fdesigned\fto\ft\bke\fthe\fte
chnici\bn\fthrough\f\b\fstep-by-step\f
di\bgnosis\fprocedure\fto\fdetermine\fthe\fc\buse\fof\f\b\fcondition.\fIt\fm\by\fnot\f\blw\bys\fbe\f
necess\bry\fto\ffollow\fthe\fch\brt\fto\fits\fconclusion.\fC\brry\fout\fonly\fthe\fpinpoint\ftest\fsteps\f
necess\bry\fto\fcorrect\fthe\fcondition.\fThen\fcheck\fthe\foper\btion\fof\fthe\fsystem\fto\fm\bke\fsure\f
the\fcondition\fh\bs\fbeen\fcorrected.\f
After\fverifying\fth\bt\fthe\fcondition\fh\bs\fbeen\fcorrected,
\fm\bke\fsure\f\bll\fcomponents\fremoved\f
h\bve\fbeen\finst\blled.\f
Clockspring.
REFER\fto:\f Clockspring \f
(50
1-20B\fSupplement\bl\f
Restr\bint\fSystem,\fRemov\bl\f
\bnd\fInst\bll\btion).\f
SymptomPo\b\bible Source\bActio\f
Power\fsteering\fsystem\fzip\fnoise\f–\foccurs\fwhen\f
hydr\bulic\ffluid\fdoes\fnot\fflow\ffreely\fthrough\fthe\f
power\fsteering\fpump\fsupply\fhose\ffrom\fsteering\f
fluid\freservoir\fto\fpower\fsteering\fpump\fc\busing\f
c\bvit\btion\f\bt\fthe\fpump.\fZip\fis\fprim\brily\f\b\fcold\f
we\bther\fst\brt-up\fphenomenon\f(below\f-10°C).
High\fviscosity\fof\f
power\fsteering\f
fluid\f\bt\flow\f
temper\bture.Cert\bin\f\bmount\fof\fnoise\f
level\f\bccept\bble,\fnot\f\b\f
s\bfety\fcritic\bl\fitem.
Aer\btion\fof\fthe\f
power\fsteering\f
fluid.
BLEED\fthe\fpower\fsteering\f
system.\f\f
REFER\fto:\f
Power\fSteering\f
System\fBleeding \f(211-00\f
Ste
ering\fSystem\f-\f
Gener\bl\fInform\btion,\f
Gener\bl\fProcedures).\f
SymptomPo\b\bible Source\bActio\f
Sh\bke\f\bnd\fvibr\btion\fwhile\fdriving
Wheel\fend\fvibr\btion.\f\f

Engine/tr\bnsmission.\fGO\fto\fPinpoint\fTest\fA.\f
Tip-in\fmo\bn

Air\fcle\bner.\f\f

Power\f\bssisted\fsteering.\f\f

Powertr\bin.\f\f


Powertr\bin/drivetr\bin\fmounts.\f

Exh\bust\fsystem.\f
GO\fto\fPinpoint\fTest\fB.\f
Idle\fboom/sh\bke/vibr\btion/shudder

C\bble(s)/hose(s).\f\f


Powertr\bin/drivetr\bin\fmounts.\f

Exh\bust\fsystem.\f\f

Belt/pulleys.\fGO\fto\fPinpoint\fTest\fC.\f
SymptomPo\b\bible Source\bActio\f
Wheel\fend\fvibr\btion\f\bn\blysis
Suspension.\f\f

Wheel\fbe\brings.\fGO\fto\fPinpoint\fTest\f D.\f
Non-\bxle\fnoise


Trim\fp\bnels.\f\f

Air\fconditioning\f(A/C)\fsystem.\f\f

Accessories.\f
GO\fto\fPinpoint\fTest\f E.\f
PINPOINT TEST A : SHAKE AND \bIBRATION WHILE DRI\bING
TEST
CONDITIONSDETAILS/RESULTS/ACTIONS
A1: NEUTRAL COAST
C\brry\fout\fthe\fneutr\bl\fco\bst\ftest.\f1
Does\fthe\fvibr\btion\fdis\bppe\br\fduring\fthe\fneutr\bl\fco\bst\ftest?\f
Yes GO\fto\fA2.\f\f
No
Стр. 11 из 15
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D2: INSPECT THE WHEEL BEARINGS
Inspect\fthe\fwheel\fbe\brings.\f\f
REFER\fto\fin\fthis\fsection.\f1
Are\fthe\fwheel\fbe\brings\fOK?\f
Yes
GO\fto\fD3.\f\f
No I

NSTALL\fnew\fwheel\fbe\brings\f\bs\fnecess\bry.\fREFER\fto:\f Front\fWheel\fBe\bring \f(204-01\fFront\fSuspension,\fRemov\bl\f\bnd\f
Ins

t\bll\btion),\f
Wheel\fKnuckle \f(204-02\fRe\br\fSuspension,\fRemov\bl\f\bnd\fInst\bll\btion).\f
RO

AD\fTEST\f\bs\fnecess\bry.\f
D3: INSPECT THE WHEEL AND TIRE RUNOUT
Inspect\fthe\fwheel\f\bnd\ftire\frunout.\f\f1
Is\fthe\fwheel\f\bnd\ftire\frunout\fOK?\f
Yes B\bl\bnce\fthe\fwheels\f\bnd\ftires.\fRefer\fto\fthe\fwheel\fb\bl\bnce\fequipment\f
m\bnuf\bcturer's\finstructions.\fROAD\fTEST\f\bs\fnecess\bry.\f
No
INSTALL\fnew\fwheels\for\ftires\f\bs\fnecess\bry.\f\f
REFER\fto:\f Wheel\f\bnd\fTire\f(204-04\fWheels\f\bnd\fTires,\fRemov\bl\f\bnd\f
Ins

t\bll\btion).\f
ROAD\fTEST\f\bs\fnecess\bry.\f
PINPOINT TEST E : NON-AXLE NOISE
TEST
CONDITIONSDETAILS/RESULTS/ACTIONS
E1: INSPECT THE \bEHICLE TRIM
Check\fthe\fr\bdi\btor\fgrille\f\bnd\ftrim\fp\bnels\fto\fsee\fif\fthey\f\bre\fthe\fsource\fof\f
the\fnoise.\f\f1
Are\fthe\fvehicle\ftrim\fcomponents\fc\busing\fthe\fnoise?\f
Yes INSTALL\fnew\ftrim\fcomponents\for\fREPAIR\f\bs\fnecess\bry.\fROAD\fTEST\f\bs\f
necess\bry.\f
No GO\fto\fE2 .\f\f
E2: CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR NOISE
Ignition\fswitch\fin\fposition\fIII.\f1
Ignition\fswitch\fin\fposition\fII.\f2
Check\fthe\fA/C\fsystem\fcomponents\ffor\fnoise\fby\fturning\fthe\fA/C\fsystem\fon\f
\bnd\foff.\f
3
Is\fthe\fA/C\fsystem\fc\busing\fthe\fnoise?\f
Yes
INSPECT\fthe\fA/C\fsystem.\fREFER\fto:\f(412-00\fClim\bte\fControl\fSystem\f-\f
Gener\bl\fInform\btion)\f
Clim\bte\fControl\fSystem \f(Di\bgnosis\f\bnd\fTesting).\f
ROA

D\fTEST\f\bs\fnecess\bry.\f
No GO\fto\fE3 .\f\f
E3: CHECK NON-FACTORY FITTED ACCESSORIES
Check\f\bny\fnon-f\bctory\finst\blled\f\bccessories\ffor\fbeing\fthe\fsource\fof\fthe\f
noise.\fFor\fex\bmple:\ftouch\fcondition\fbody-to-fr\bme,\f\bntenn\bs,\fdeflectors\f
\bnd\ffog\flights.\f1
Are\fthe\f\bccessories\fthe\fc\buse\fof\fthe\fnoise?\f
Yes
ADJUST,\fREPAIR,\for\fINSTALL\fnew\f\bccessories\for\ff\bsteners\f\bs\frequired.\f
ROAD\fTEST\f\bs\fnecess\bry.\f
No
Стр. 14 из 15
04.01.2013http://127.0.0.1:8888/wsm/js/procedure.do?variantId=1431&proc-uid=G37349&guid...procarmanuals.com
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Suspensi\bn Syste\f - General Inf\br\fati\bn
- Suspensi\bn Syste\fS-MAX/G\bl\bxy\f2006.5\f(02/2006-)\fPrint \f
Diagn\bsis and Testing
Special T\b\bl(s)
Gen

eral Equip\fent
Inspecti\bn and Verificati\bn 1. 1.
Verify\fthe\fcustomer\fconcern.\f
2

. 2.
Visu\blly\finspect\ffor\fobvious\fsigns\fof\fmech\bnic\bl\fd\bm\bge.\f
V

isual Inspecti\bn Chart
3. 3.
If\f\bn\fobvious\fc\buse\ffor\f\bn\fobserved\for\freported\fconcern\fis\ffound,\fcorrect\fthe\fc\buse\f
(if\fpossible)\fbefore\fproceeding\fto\fthe\fnext\fstep.\f
4. 4.
If\fthe\fc\buse\fis\fnot\fvisu\blly\fevident,\fconnect\fthe\f F
ord\f\bpproved\fdi\bgnostic\ftool\fto\f
the
\fd\bt\b\flink\fconnector\f(DLC).\f
5. 5.
Retrieve\fthe\fDi\bgnostic\fTrouble\fCode\f(DTC)s\f\bnd\frefer\fto\fthe\fDTC\fIndex\fCh\brt.\f
D

TC Index Chart
Alignment\fPins,\fSubfr\bme\f
205-316\f(15-097A)\f
Ford\f\bpproved\fdi\bgnostic\ftool
Mechanica\bE\bectrica\b

Tire\fpressure(s)\f\f

Wheels\f\bnd\ftires\f\f

Wheel\fknuckles\f\f

Tie-rod\fends\f\f

Front\fsuspension\flower\f\brm\fb\bll\fjoints\f\f

Front\fsuspension\flower\f\brm\fbushings\f\f

Front\fstrut\f\bnd\fspring\f\bssemblies\f\f

Front\f\bnd\fre\br\fst\bbilizer\fb\brs\f\bnd\fconnecting\flinks\f
\f

Re\br\fsprings\f\f

Shock\f\bbsorbers\f\f

Re\br\fsuspension\flower\f\brms\f

Wiring\fh\brness(es).\f\f

Electric\bl\fconnector(s).\f\f

Switch(es).\f\f

Shock\f\bbsorber\fsolenoid(s)\f\f


vertic\bl\f\bcceler\btion\fsensor(s)\f

Height\fsensor(s)\f\f

Ad\bptive\fd\bmping\fmodule\f
\fTC\fescription/Condition
Possib\be
Source
Action
C110C11Left\ffront\fshock\f\bbsorber\fsolenoid\fcircuit\f-\fshort\fto\f groundCircuit(s)\f
or\f
solenoid
GO\fto\fPinpoint\fTest\f D.\f
C110C12Left\ffront\fshock\f\bbsorber\f
solenoid\fcircuit\f-\fshort\fto\f
powerCircuit(s)\f
or\f
solenoid
GO\fto\fPinpoint\fTest\f E.\f
C110C13Left\ffront\fshock\f\bbsorber\f
solenoid\fcircuit\f-\fopen\f circuitCircuit(s)\f
or\f
solenoid
GO\fto\fPinpoint\fTest\f F.\f
C110C18Left\ffront\fshock\f\bbsorber\f
solenoid\fcircuit\f-\fcurrent\fSolenoidConnect\fthe\fFord\f\bpproved\fdi\bgnostic\ftool\f
\bnd\fcle\br\fthe\fDTC.\fC\brry\fout\f\b\fro\bd\ftest\ffor\f
\f\f
Стр. 1 из
30
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