IGNITION RESISTORA resistance connected
into the primary circuit to reduce battery voltage to
the coil during engine operation.
IGNITION SWITCHThe switch in the ignition
system that opens and closes the ignition-coil
IGNITION SYSTEMComponents that produce a
spark to ignite the air-fuel mixture in the engine.
IGNITION TIMINGHow early or late the spark
plugs fire in relation to piston position.
IMPELLERPump component with fanlike blades
that spins inside a housing to move liquid.
INCORRECT CAMBERCondition that produces
wear on one side of the tire tread.
INCORRECT TOECondition that produces a
feathered edge on the tire tread.
permits each wheel to move up and down without
seriously affecting any other wheel.
pressure that a tire can safely handle.
INLET STUB SHAFTSection of front drive axle
that is splined to differential gears. It is connected
to the interconnecting shaft through a universal
INPUTThe information provided to a computer by a
INPUT SHAFTMetal shaft that transfers motion
from the engine (via the clutch) to the trans-
I N S U L A T E D C U R R E N T R E S I S T A N C E
TESTCheck of all parts between the battery
positive and the starting motor for excess
INSULATORA material that resists the flow of
INTEGRAL POWER STEERINGA system in
which the hydraulic piston is mounted inside the
INTEGRAL REGULATORA regulator that is
mounted in or on an alternator.
silicon, containing complete electronic circuits.
front drive axle that connects the inner and outer
JOUNCE BUMPERRubber blocks that keep
suspension parts from hitting the frame when the
vehicle encounters large bumps or holes.
JUMPS OUT OF GEARA manual transmission
problem in which the transmission will
unexpectedly disengage and move into neutral.
JUMP STARTINGProviding current to a vehicle
with a dead battery by connecting cables to the
battery of an operating vehicle.
KICKDOWN VALVEComponent that causes an
automatic transmission to shift down into a lower
gear during fast acceleration.
KNUCKLEA steering knuckle; a front suspension
part that acts as a hinge to support a front wheel and
permit it to be turned to steer the vehicle.
LATERAL RUNOUTSide-to-side movement of a
wheel or tire.
LEAF SPRINGFlat pieces of spring steel that are
stacked and bound together. Normally used as a
part of the rear suspension of the vehicle.
LIMITED SLIP DIFFERENTIALOne
provides driving force to both rear wheels at all
LIMITED SLIP DIFFERENTIAL CHATTER
Sound made when turning a comer, caused by
sticking and releasing of clutches in the
LINERThin rubber layer bonded to plies and
forming the inside surface of the tire.
LOAD RATINGThe maximum amount of weight a
tire can carry when inflated to the recommended
LOCKED IN GEARA
problem often caused by damaged or sticking
linkage. Broken gear teeth can also be at fault.
LOCKING HUBComponents that transfer power
from the driving axles to driving wheels on a four-
wheel drive vehicle.
LOCK-UP CONVERTERA variation of the fluid
coupling with an internal friction clutch
mechanism. It "locks up" in high gear, improving