powersteeringpump /control valvehydraulic orelectriccomponentsthat reducesteering effortlostmotionexcessive freeplay in steeringbefore wheelmovementoccursballjointa pivot pointallowing multi-directionalmovement,connecting controlarms and steeringknucklesthrustlinethe direction inwhich the rearaxle pushesrelative to thevehicle’scenterlinetie rodendconnects thesteering linkageto the steeringknuckle,transferringsteering motionshockabsorber(damper)a componentthat controlsspringoscillations andmotiondampingcontrolarm(upper/lower)a suspensionlink that locatesthe wheel andallows verticalmotionsteeringcolumnthe shaft andhousingconnecting thesteering wheelto the steeringgearrackpiston /sectorshaftinternal parts ofa steering gearthat can causeplay orlooseness ifwornnegativecamber/positivecambertop of the tiretilts inward(negative) oroutward(positive)wheelalignmentadjustingcamber, caster,toe, and thrustangle to meetvehiclespecificationscontrolarmbushinga rubber orelastomericmount thatcushions andlocates thecontrol armpower-steeringbelt/pulleydrives thepowersteering pumpin manyvehicleswheeland tireserviceincludesbalancing,mounting,inflation,rotation, andinspectioncastertrail/steeringtrailthe distancebetween the tire’scontact patch andthe steering axisintersection pointjounce/reboundbumperlimitssuspensiontravel at theextreme endsof movementundersteer/oversteerhandlingconditions wherethe vehicle turnsless (understeer)or more(oversteer) thanintendedcamberchangeduringrebound/compressionvariation incamber angleas thesuspensionmoves up ordownwheeloffsetthe distancefrom the wheel’smountingsurface to itscenterline;affects fitmentsteeringratiothe amount ofroad wheelturn comparedto steeringwheel inputtoe-in/toe-outthe angle the tiresare pointed toward(toe-in) or awayfrom (toe-out)each other whenviewed from abovecasterthe tilt of thesteering axiswhen viewedfrom the side(forward orrearward tilt)steering gear(rack andpinion /recirculatingball)convertssteeringwheel inputinto wheelmotionidler arm/pitmanarmsteering linkagecomponentsthat support ortransfersteering motionthrustangleadjustmentaligning therear axlethrust line withthe vehicle’scenterlinecamberthe tilt of the wheelor tire inward oroutward whenviewed from thefront of the vehicletorsionbara springingmember thatresists twistand sets rideheight andspring ratebindingwhen asteering orsuspensionpart does notmove freelyrideheightthe verticaldistance betweenthe vehicle’schassis and theground (or frameand axle)anti-rollbar (swaybar)/ swaybar linkconnects bothsides of thesuspension toreduce bodyrollstrutassemblycombines ashock absorberwith a structuralcomponentsupporting thechassisairsuspensionuses airsprings insteadof conventionalcoil or leafspringsstrutmount/bearingthe top mountingpoint of a strutassembly, oftencontaining abearing forsteeringmovementloadleveling/heightsensingsystems thatadjustsuspensionheight undervarying loadswheelimbalanceuneven weightdistribution in awheel/tireassemblycausingvibrationthrustanglethe direction therear wheelspush the vehiclerelative to thecenterline of thevehiclespringratethe stiffnessof a spring;resistance tocompressionridequality/ridecomfortthe feel of thevehicle throughsuspensionmovement anddampingshort-arm/long-arm (SLA)suspensiona frontsuspensiondesign usingunequal lengthcontrol armspowersteeringpump /control valvehydraulic orelectriccomponentsthat reducesteering effortlostmotionexcessive freeplay in steeringbefore wheelmovementoccursballjointa pivot pointallowing multi-directionalmovement,connecting controlarms and steeringknucklesthrustlinethe direction inwhich the rearaxle pushesrelative to thevehicle’scenterlinetie rodendconnects thesteering linkageto the steeringknuckle,transferringsteering motionshockabsorber(damper)a componentthat controlsspringoscillations andmotiondampingcontrolarm(upper/lower)a suspensionlink that locatesthe wheel andallows verticalmotionsteeringcolumnthe shaft andhousingconnecting thesteering wheelto the steeringgearrackpiston /sectorshaftinternal parts ofa steering gearthat can causeplay orlooseness ifwornnegativecamber/positivecambertop of the tiretilts inward(negative) oroutward(positive)wheelalignmentadjustingcamber, caster,toe, and thrustangle to meetvehiclespecificationscontrolarmbushinga rubber orelastomericmount thatcushions andlocates thecontrol armpower-steeringbelt/pulleydrives thepowersteering pumpin manyvehicleswheeland tireserviceincludesbalancing,mounting,inflation,rotation, andinspectioncastertrail/steeringtrailthe distancebetween the tire’scontact patch andthe steering axisintersection pointjounce/reboundbumperlimitssuspensiontravel at theextreme endsof movementundersteer/oversteerhandlingconditions wherethe vehicle turnsless (understeer)or more(oversteer) thanintendedcamberchangeduringrebound/compressionvariation incamber angleas thesuspensionmoves up ordownwheeloffsetthe distancefrom the wheel’smountingsurface to itscenterline;affects fitmentsteeringratiothe amount ofroad wheelturn comparedto steeringwheel inputtoe-in/toe-outthe angle the tiresare pointed toward(toe-in) or awayfrom (toe-out)each other whenviewed from abovecasterthe tilt of thesteering axiswhen viewedfrom the side(forward orrearward tilt)steering gear(rack andpinion /recirculatingball)convertssteeringwheel inputinto wheelmotionidler arm/pitmanarmsteering linkagecomponentsthat support ortransfersteering motionthrustangleadjustmentaligning therear axlethrust line withthe vehicle’scenterlinecamberthe tilt of the wheelor tire inward oroutward whenviewed from thefront of the vehicletorsionbara springingmember thatresists twistand sets rideheight andspring ratebindingwhen asteering orsuspensionpart does notmove freelyrideheightthe verticaldistance betweenthe vehicle’schassis and theground (or frameand axle)anti-rollbar (swaybar)/ swaybar linkconnects bothsides of thesuspension toreduce bodyrollstrutassemblycombines ashock absorberwith a structuralcomponentsupporting thechassisairsuspensionuses airsprings insteadof conventionalcoil or leafspringsstrutmount/bearingthe top mountingpoint of a strutassembly, oftencontaining abearing forsteeringmovementloadleveling/heightsensingsystems thatadjustsuspensionheight undervarying loadswheelimbalanceuneven weightdistribution in awheel/tireassemblycausingvibrationthrustanglethe direction therear wheelspush the vehiclerelative to thecenterline of thevehiclespringratethe stiffnessof a spring;resistance tocompressionridequality/ridecomfortthe feel of thevehicle throughsuspensionmovement anddampingshort-arm/long-arm (SLA)suspensiona frontsuspensiondesign usingunequal lengthcontrol arms

CATS ASE Steering & Suspension Vocab - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. hydraulic or electric components that reduce steering effort
    power steering pump / control valve
  2. excessive free play in steering before wheel movement occurs
    lost motion
  3. a pivot point allowing multi-directional movement, connecting control arms and steering knuckles
    ball joint
  4. the direction in which the rear axle pushes relative to the vehicle’s centerline
    thrust line
  5. connects the steering linkage to the steering knuckle, transferring steering motion
    tie rod end
  6. a component that controls spring oscillations and motion damping
    shock absorber (damper)
  7. a suspension link that locates the wheel and allows vertical motion
    control arm (upper/ lower)
  8. the shaft and housing connecting the steering wheel to the steering gear
    steering column
  9. internal parts of a steering gear that can cause play or looseness if worn
    rack piston / sector shaft
  10. top of the tire tilts inward (negative) or outward (positive)
    negative camber/ positive camber
  11. adjusting camber, caster, toe, and thrust angle to meet vehicle specifications
    wheel alignment
  12. a rubber or elastomeric mount that cushions and locates the control arm
    control arm bushing
  13. drives the power steering pump in many vehicles
    power-steering belt/ pulley
  14. includes balancing, mounting, inflation, rotation, and inspection
    wheel and tire service
  15. the distance between the tire’s contact patch and the steering axis intersection point
    caster trail/ steering trail
  16. limits suspension travel at the extreme ends of movement
    jounce/ rebound bumper
  17. handling conditions where the vehicle turns less (understeer) or more (oversteer) than intended
    understeer/ oversteer
  18. variation in camber angle as the suspension moves up or down
    camber change during rebound/ compression
  19. the distance from the wheel’s mounting surface to its centerline; affects fitment
    wheel offset
  20. the amount of road wheel turn compared to steering wheel input
    steering ratio
  21. the angle the tires are pointed toward (toe-in) or away from (toe-out) each other when viewed from above
    toe-in/toe-out
  22. the tilt of the steering axis when viewed from the side (forward or rearward tilt)
    caster
  23. converts steering wheel input into wheel motion
    steering gear (rack and pinion / recirculating ball)
  24. steering linkage components that support or transfer steering motion
    idler arm/ pitman arm
  25. aligning the rear axle thrust line with the vehicle’s centerline
    thrust angle adjustment
  26. the tilt of the wheel or tire inward or outward when viewed from the front of the vehicle
    camber
  27. a springing member that resists twist and sets ride height and spring rate
    torsion bar
  28. when a steering or suspension part does not move freely
    binding
  29. the vertical distance between the vehicle’s chassis and the ground (or frame and axle)
    ride height
  30. connects both sides of the suspension to reduce body roll
    anti-roll bar (sway bar)/ sway bar link
  31. combines a shock absorber with a structural component supporting the chassis
    strut assembly
  32. uses air springs instead of conventional coil or leaf springs
    air suspension
  33. the top mounting point of a strut assembly, often containing a bearing for steering movement
    strut mount/ bearing
  34. systems that adjust suspension height under varying loads
    load leveling/ height sensing
  35. uneven weight distribution in a wheel/tire assembly causing vibration
    wheel imbalance
  36. the direction the rear wheels push the vehicle relative to the centerline of the vehicle
    thrust angle
  37. the stiffness of a spring; resistance to compression
    spring rate
  38. the feel of the vehicle through suspension movement and damping
    ride quality/ ride comfort
  39. a front suspension design using unequal length control arms
    short-arm/long-arm (SLA) suspension