
Publi s hed: 11-May-2011
Transmission/Transaxle Cooling - Transmission Cooling
Diagnosi s and Tes ti ng
Principles of Operation
For a detail ed descripti on of the aut omati c transmis s ion cool ing s ys tem, refer t o t he relevant Descripti on and Operat ions ect ion i n t he works hop manual .REFER to: Trans mi ss i on Cool ing (307-02 Trans mi ss ion/Transaxle Cool ing, Descripti on and Operat ion).
Inspection and Verification
1. Verify t he cus t omer concern.1.
2. Vis ually ins pect for s ys tem int egrit y and obvi ous s igns of mechanical damage.2.
Visual Inspection
Mechanical
Feed and ret urn t ubesConnect ions t o the aut omati c t ransmis s ion and t he automat ic t rans mis s ion flui d cool erAutomat ic trans mi ss i on fl uid l evel
3. If an obvious cause for an obs erved or report ed concern is found, correct t he caus e (if pos s ible) beforeproceeding t o t he next s t ep3.
4. If t he caus e is not vis ually evi dent , verify t he sympt om and refer t o t he Sympt om Chart.4.
Symptom Chart
ConditionPossible CauseAction
Over heat ing of t heautomat ict rans mis s ion
Obs truct ion i n t he automat ict rans mis s ion fluid cool erFl us h out t he automat ic t rans mi ss ion fl ui d cool er wit hnew aut omati c t rans mis s ion fluidIf t he fl ushi ng is uns ucces sful, ins t al l a new cooler.REFER t o: Transmis s ion Flui d Cooler - I6 3.2L Petrol(307-02 Trans mi ss i on/Trans axl e Cooling, Removal andIns tall ati on) /Trans mi s si on Fluid Cool er - TD4 2.2L Di es el (307-02Trans mi s si on/Trans axl e Cooli ng, Removal andIns tall ati on).
Over heat ing of t heautomat ict rans mis s ion
Obs truct ion i n t he automat ict rans mis s ion fluid tubesFl us h out t he automat ic t rans mi ss ion fl ui d cool er tubeswit h new automat ic t rans mi ss i on fl ui dIf t he fl ushi ng is uns ucces sful ins tall new aut omati ct rans mi ss i on fl ui d cooler tubes
Loss of aut omati ct rans mis s ion flui dConnect ions to the aut omati ct rans mis s ion and t he automat ict rans mis s ion fluid cool er
Check t he int egrit y of tubes , connect ions and s ealsCheck t he torque of t he t ube fi xi ngs.REFER t o: Specificati ons (307-02Trans mi s si on/Trans axl e Cooli ng, Speci fi cat ions ).
Loss of aut omati ct rans mis s ion flui dLeak at aut omati c t ransmis s ion fluidcool erCheck t he int egrit y of tubes , connect ions and s ealsCheck t he torque of t he t ube fi xi ngs.REFER t o: Specificati ons (307-02Trans mi s si on/Trans axl e Cooli ng, Speci fi cat ions ).Check for aut omat ic trans mi s si on fl uid contami nat ionof t he engine cool ant. Inst all new cooler as required.REFER t o: Transmis s ion Flui d Cooler - I6 3.2L Petrol(307-02 Trans mi ss i on/Trans axl e Cooling, Removal andIns tall ati on) /Trans mi s si on Fluid Cool er - TD4 2.2L Di es el (307-02Trans mi s si on/Trans axl e Cooli ng, Removal andIns tall ati on).

ItemPart NumberDescription
1-Interlock sol enoi d - Emergency rel eas e l ever2-Selector pos it ion Light Emi tt ing Di odes (LED's )
3-Selector l ever butt on
4-Knob5-Gait er
6-PCB ribbon cabl e and connector
7-Selector l ever mounti ng plat e8-Spri ng clip
9-Shift hous i ng Left Hand (LH) and Ri ght Hand (RH)
10-Gear s hi ft modul e11-Opt ical sens or al ignment mark
12-Sensor arm
13-Cable at t achment ball pin14-Shift int erlock s olenoid
15-Mounti ng bolt (4 off)
16-Cable abut ment aperture17-Cable adjust ment/s ett ing apert ure
The s elect or lever ass embly is l ocat ed in a cent ral posi ti on on t he t ransmis s ion t unnel , bet ween the front driver andpass enger s eats and is s ecured t o t he transmis si on t unnel wit h 4 bol ts . The s elector lever ass embly is a non-s erviceabl eelectro-mechani cal as s embly whi ch is us ed by t he dri ver t o s elect the requi red t ransmi ss i on mode.
Selecti ons made usi ng the sel ect or lever are pass ed t o t he t rans mis s ion l ever arm by a cable. A bal l pi n i s att ached t o t helever mechanis m and provides for the at tachment of t he cable.
There are fi ve s elect or lever pos i ti ons and t wo addit ional pos i ti ons for manual 'CommandShi ft ™' operati on:
P (Park) - Prevents t he vehicle from moving by locki ng the trans mi ss i onR (Revers e) - Sel ect only when the vehicle is s t ati onary and the engi ne is at i dleN (Neutral) - No torque trans mi tt ed t o dri ve wheel sD (Drive) - Thi s pos it ion us es all s ix forward gearsM/S (Sport Mode) - This pos it ion us es all forward gears in 'D' but wil l ups hift at hi gher engine s peeds to improveaccelerati on and downs hift at higher engine speed t o give i ncreased engine braki ng+ and - Manual ('CommandShi ft ™') mode - Movement of t he s elector lever in the +/- posi ti ons, when t he l ever is int he M/S pos i ti on, wi ll operate the trans mi ss i on in manual (CommandShift ™) mode all owing t he dri ver t o manuall ys elect al l si x forward gears.
The s elect or lever pos i ti on is di spl ayed t o t he dri ver on the s elector pos it ion LED and i n t he ins trument cl ust er. In'CommandShift™ ' mode, i f a gear i s s elected but t he Trans mis s ion Control modul e (TCM) logic prevent s s el ect ion of t hatgear, t he request ed gear will be init iall y dis played. The TCM wil l engage t he next al lowed gear and then di spl ay that gear.
Sensor Module
A s ens or modul e is locat ed on t he LH s ide of t he s elector lever. The s ens or modul e is an int el li gent unit and controls t hes elect or posi ti on LED operati on and als o t he s hift interlock s olenoi d operat ion. The sens or modul e compri ses a Pri nt ed

Publi s hed: 11-May-2011
Manual Transmission/Transaxle and Clutch - General Information - Manual
Transmission and Clutch
Des cript ion and Operat ion
COMPONENT LOCATION
ItemPart NumberDescription1-Selector lever
2-Manual t rans mi ss ion
OVERVIEW
The M66EHA50 manual t rans mis s ion i s a 6 speed unit manufact ured by Get rag-Ford in Col ogne, Germany. The t rans mis s ionis a highly compact 4 s haft desi gn, incorporati ng t he front final dri ve gear, and is adapted for All W heel Dri ve (AW D) byprovidi ng a connecti on from t he final drive carrier t o t he Power Transfer Uni t. The t rans mi ss i on is capabl e of t ransferringhigh t orque from the engi ne.
The t ransmis s ion feat ures t wo mechanical s hift cabl es from t he s elector l ever and an electronic reverse inhibit or.
The M66EH50 manual t rans mis s ion has t he fol lowi ng feat ures:
380 Nm torque capaci ty (wi th torque truncati on in 1st and revers e gears )Dry weight 61 kgTrans mis s ion oi l is fil l for li fe - 1.9L fill t o l evel plug Oi l s pec MTF97309Front different ial int egral wit h t rans mis s ion6 forward gears4th to 6t h gears and revers e gear have s i ngl e cone synchronizati on3rd gear i s doubl e cone synchronized1s t and 2nd gears have triple cone s ynchroni zat ion.
The clutch s ys tem used is a convent ional s ingle driven plat e and a di aphragm s pri ng cl utch cover as s embly. The cl utch i shydraulicall y operated by operat ion of t he clut ch pedal which di sengages the drive from the engine cranks haft t o t het ransmis s ion.
TRANSMISSION
For shi ft cabl e and s elector l ever descripti on refer to Ext ernal Cont rol s.For addit ional informat ion, refer t o: Ext ernal Control s (308-06 Manual Trans mi ss i on/Trans axl e External Controls ,Des cript ion and Operat ion).

s ynchronizi ng hub towards the revers e gear i dler gear.
The coupl ing s leeve and s ynchronizi ng hub lock t he revers e gear idler gear at the revers e s haft.
The t orque of the engine is t rans ferred via the cl ut ch t o the input shaft. The 1s t gear on t he i nput s haft t rans fers power t ot he 1st gear idl er gear. The power is then t rans ferred t o t he revers e gear idl er gear and then t o t he reverse gear coupl ings leeve. From t here power is trans ferred to t he i nt ermedi ate s haft 1s t - 2nd and 5t h - 6th and to the final dri ve which i nt urn t rans fers power t o t he ring gear. The ring gear is connect ed to the drive s hafts t hrough the di fferenti al.
Differential
The different ial dis t ribut es dri ve from t he t ransmis s ion equally bet ween t he LH and RH front half s haft s and als o provi desdri ve torque to the rear di fferenti al vi a t he power t rans fer unit .
The different ial is locat ed at t he rear of the trans mi ss i on hous ing. Both s ides of the di fferenti al are connected to t he LHand RH drive s haft s, s upplying t orque t o t he front wheel s The different ial is als o connected t o t he Power Transfer Unit viaa s pli ned shaft to the RH s ide of t he trans mi s si on, s upplying t orque t o t he rear driveline.
Reverse Switch
The revers e s wi tch i s located i n t he front of the t rans mis s ion cas ing, above t he 1s t gear det ect ion s wi tch. The swi tch i sus ed by the Ant i-lock Brake Sys tem (ABS) module for Hil l Descent Cont rol (HDC) and als o for revers ing l amp operati on.
1st Gear Position Switch
The 1s t gear s wit ch is locat ed on t he front of the t rans mi ss ion cas ing, below t he reverse swit ch. The s wit ch is us ed by t heABS module for HDC.
CLUTCH
ItemPart NumberDescription1-Clutch pedal
2-Brake/clut ch res ervoir
3-Fl uid l evel s ensor4-Connector
5-Low pres s ure hos e
6-Mast er cyl inder7-High pres s ure cl utch l ine
8-Connector
9-Clutch bl eed adapt or10-Transmis s ion
11-Slave cyl inder and releas e beari ng
12-Clutch cover as s embly13-Dri ven (fri ct ion) plat e
The clutch i s a convent ional si ngl e driven plat e and diaphragm spring clut ch cover ass embly which is hydraul ically act uat ed

from the clut ch pedal .
The main components of t he clut ch are t he clut ch cover as s embly (pres s ure pl ate), the engine flywheel and the drivenplat e (fricti on plate). Toget her wit h fl ywheel and dri ven plate, t he clutch cover forms a fri ct ion s ys tem and is mount ed t ot he fl ywheel by bolt s in the hous ing.
Clutch Cover
ItemPart NumberDescription
1-Cont act plat e2-Di aphragm s pri ng
3-Cover
4-Mount ing holesThe clutch cover ens ures t hat the engine torque i s t rans ferred via the driven plat e t o t he trans mi s si on int ake shaft. Thecont act force requi red for trans ferring engine t orque i s provided by a sl ott ed diaphragm spring. The diaphragm s pri ngall ows the driver to appl y les s pres s ure on the cl ut ch pedal due t o l ow engagi ng force. A contact plat e provides t he frict ions urface for the driven plat e t o engage on.
The diaphragm spring i s of the compres s ed t ype which is act uat ed by t he s lave cyl inder. W hen the s l ave cyli nder i soperated, t he force from t he diaphragm spring i s t ransferred t hrough the cl ut ch cover housi ng int o t he fl ywheel it i s bolt edt o, releas ing t he pres s ure on t he dri ven plate and dis engaging the drive t o t he transmis si on.
The clutch cover contact plat e is att ached t o t he clutch hous ing by pl at e s pri ngs . Cams on the contact plat e projectt hrough the openings i n the hous ing and t he outer di aphragm s prings are s upported on the cams . The cont act pl at e i satt ached t o t he housi ng by bolt s and wire rings . W hen t he s lave cyl inder is operat ed, t he pres s ure on the di aphragms prings i s rel eas ed and t he cont act pl ate can pi vot on the cams , rel eas ing the pres sure on the driven plat e.
Driven Plate

The dri ven pl ate is t he cent ral connecti on element i n the cl utch. In combi nat ion wi th the cl ut ch cover as sembl y, its eparates and l inks engi ne and powert rain by connect ing the engine cranks haft t o t he trans mi s si on input s haft.
The dri ven pl ate is a ri gi d t ype fricti on plat e. The flywheel is of t he dual mas s t ype and abs orbs torque fluct uat ionsgenerated by t he combust ion proces s es to reduce noi s e and wear in t he t rans mis s ion.
Dual Mass Flywheel
The dual mas s flywheel compris es t wo main components ; t he pri mary s i de which i s att ached t o t he engi ne crankshaft andt he secondary s ide t o whi ch the clut ch cover as sembl y is at t ached.
The pri mary si de has the st art er ri ng gear at tached to it s outer circumference. The ring gear is us ed by t he s tarter mot or torot ate the engine during engine crank at s t art up. The primary s ide is s ecured t o t he cranks haft wi th eight bol ts . A dowelin the cranks haft flange ens ures that t he fl ywheel is correctl y located.
The s econdary s ide has the s moot h frict ion s urface on which t he dri ven pl ate fri cti on material engages . Dowel s and fixingholes all ow for the correct al ignment and att achment of the cl utch cover as s embl y.
The pri mary and secondary s ides are connect ed wi th l ong coi l springs . The two si des can rotat e agains t each ot her, li mi tedby t he coi l springs , whi ch absorb t orque loading on cl ut ch engagement and t ors ional vi brati ons from t he engine.

SymptomPossible CauseAction
Gear wheel s bangi ngwhen s hifti ngLow trans mi s si on fl uid l evelCl utch not cleari ngSel ect or forks ors ynchroni zer rings
Check and top-up transmis si on fluid. Check for correct operati onof clut ch. If sel ect or fork or synchronizer rings s us pect , ins tall anew trans mi ss i on, refer t o the new module/componenti nst all at ion not e at t he top of t he DTC Index
Nois es i n t he forwardgearsLow trans mi s si on fl uid l evelThe engine/trans mi s si onas s embly i s in cont act wi tht he chass is /bodyEngine/trans mi s si on fl angebol tsInput and out put shaftbeari ngs
Check top-up transmis si on fluid. Ensure engine/t rans mis s ionas s embly i s not in contact wit h t he chas s is /body. Tightenengine/t rans mi ss i on fl ange bol ts t o correct t orque.REFER t o: Specificati ons (308-00 Manual Transmis s ion/Trans axleand Cl ut ch - General Informat ion, Specificati ons).If input or out put bearings are sus pect , ins t al l a newt rans mis s ion, refer to the new modul e/component i ns t allat ionnot e at the top of t he DTC Index
Gears jump out ofengagementEngine/trans mi s si on s upporti nsul atorGearshi ft l inkagemalfuncti onInternal component s
Repair and i ns t all new engine/t rans mis s ion support i ns ulat or asneces s ary. Check gearshi ft mechani s m i s ins t al led and adjus t edcorrect ly. If internal component s are s us pect , ins t al l a newt rans mis s ion, refer to the new modul e/component i ns t allat ionnot e at the top of t he DTC Index
One of t he gears(parti cul arl y revers e)cannot be s elected
Gearshi ft l inkagemalfuncti onTrans mi s si on int ernals elect ion probl em
Check gears hi ft mechanis m is i ns t alled and adjust ed correct ly.If int ernal components are s uspect, i nst all a new trans mi s si on,refer t o the new module/component i nst all ati on not e at t he t opof t he DTC Index
Unable t o s elect fi rs tand s econd gears(thi rd, s ixth andreverse ok)
Broken sel ect or pi n i n gategui de (i nternal t ot rans mi ss i on shi ftmechanis m)
Inst all new t rans mi ss i on int ernal s hift mechani sm (do noti nst all new t rans mis s ion for thi s faul t)
Gears hift li nkage hasexces s ive playGearshi ft l ever bearing wornGearshi ft s elector cabl esas s embly damaged or worn
Check and ins tal l new gears hi ft l ever beari ng and cabl es asneces s ary
Clut ch s lippi ngCl utch pedal free pl aySt icking clut ch pedalCl utch pres s ure pl ate anddi aphragm s pri ngsCl utch drive plat e frict ionmateri al worn/contami natedFl ywheelSl ave cyli nder s t ickingExcess ive temperat ure
Check cl utch pedal has s uffici ent free pl ay and is not s t icki ng.Check and ins tal l new cl utch pres s ure and drive pl ates asneces s ary. Check integrit y of fl ywheel. Check and ins tal l news lave cyli nder as requi red
Clut ch chat ter ors hudderEngine mount sO il cont aminat ion on drivepl ateDi aphragm s pri ngsCl utch pres s ure pl ateFl ywheel
Check int egrit y of engi ne mounti ngs . Check integrit y and forcontami nat ion of clut ch components . Check condit ion offlywheel. Rect ify and i ns t all new component s as neces s ary
Clut ch drag (diffi cul tys hifti ng)Ins uffi cient brake fl uidAi r in cl ut ch hydraulics ys temCl utch pedal free pl ayIns uffi cient cl utch pedalt ravelDi aphragm s pri ngsDrive pl ate fri cti on materialcontami nati onCl utch dis c s pli nes
Check/top-up brake hydrauli c fl ui d l evel and check clut chhydrauli c s ys t em for leaks . Check cl utch free pl ay and travel .Check int egrit y of clutch, ensure dri ve plate moves freel y on t hei nput s haft s pli nes
Clut ch pedalpuls ati onCl utch and brake pedal pivots haft not correct ly l ubricat edDamaged s pri ngs in press urepl ateRel eas e beari ng nois y orwornFl ywheel
Check for free movement of cl utch pedal at pi vot . Checki ntegri ty of clut ch pres s ure plat e, releas e beari ng and fl ywheel

which i s hydraulicall y act uated from t he cl utch pedal.
Pres s ing t he clutch pedal pres surizes t he hydraul ic fluid in the mas t er cyli nder. The fl uid pres s ure is t rans ferred via a pipefrom the mas t er cyli nder t o t he s lave cyl inder in the t rans mis s ion. The fluid press ure operates t he s lave cylinder which i nt urn pus hes the fingers of t he clut ch cover, rel easi ng the driven pl at e and di sengagi ng t he dri ve from t he engi ne crankshaftt o the trans mi s si on.
A hydrauli c clutch bl eed adapt or i s l ocated on the front of t he transmis s ion. The adapt or provi des the connect ion betweent he pres sure pipe from t he mas ter cyl inder to the s l ave cyli nder. The adapt or contains a bleed s crew to purge t he cl utchhydraulic sys tem of air aft er s ervice repl acement of one of the hydrauli c components. The adaptor als o i ncl udes a peakt orque li mit er. This prevent s ins t ant clut ch engagement if t he dri ver accident all y rel eas es t he clutch l ever t o preventdamage to the driveli ne components .
Stop/Start Vehicles - From 2010 MY
Clut ch Mast er Cyl inder and Linear Cl utch Sensor
The li near clut ch s ens or, l ocat ed on t he cl utch mas t er cyli nder and hardwi red t o t he CJB, i s us ed to s ens e t he posi ti on oft he cl utch pedal. It is us ed in conjunct ion wi th ot her sens or out puts t o t ri gger an engine res tart, engine s t op or st allrecovery on St op/Start vehi cl es. It is al s o us ed along wit h t he first and revers e gear s wi tches to compl ete cl ut chplaus ibil it y.
A magnet ins ide the clut ch mas ter cylinder provides t he posi ti on indicator for the linear cl utch s ensor. For t his reason, ift he mas ter cyl inder is replaced the correct replacement mas t er cyli nder mus t be i dent ified and fit t ed.For addit ional informat ion, refer t o: Starti ng Sys t em (303-06C Starti ng Syst em - TD4 2.2L Di es el, Vehicles Bui lt From:01-03-2009, Descripti on and Operat ion).
Linear Clutch Sens or