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For the newb...common terms and acronyms


 
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ThePhantum
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PostPosted: Sun Feb 22, 2004 1:53 pm    Post subject: For the newb...common terms and acronyms Reply with quote

A list of common terms and acronyms:

I originally posted this in the TJ Forum...but I think it really belongs here. This list was compiled from other sites, mainly Jeepforum and NAXJA.

*Sensors
CCV- Crank Case Ventilation.
CPS- Crank Position Sensor.
MAP- Manifold Absolute Pressure
NSS- Neutral Safety Switch (found on Auto tranny's).
O2- Oxygen sensor.
TPS- Throttle Position Sensor.
TCU- Transmission Control Unit.

*Steering & Suspension

AAL - Refers to Add A Leaf, placed in the factory leaf pack to achieve lift.

BB - Refers to Budget Boost, Also called a spacer or puck lift. Usually only increases of 1-2” of lift.

Caster – Refers to forward or rearward tilt of the steering knuckle from vertical

Camber - Refers to inward or outward tilt of the wheel relative to the center of the vehicle

Drag Link - the bar connected to the pitman arm and the passenger side steering knuckle (drivers side knuckle on RHD jeeps)

DPA – Refers to dropped pitman arm

LCA- lower control arms. These are the suspension arms that attach to the bottom of the axle.

LHD - left hand drive (steering wheel is on the left)

OME - Refers to Old Man Emu, off-road accessory manufacturer.

Pitman Arm- Refers to arm that attaches the Steering box to drag link.

RHD - right hand drive (steering wheel is on the right)

SOA - Refers to a Spring Over Axle conversion

Steering Stabilizer- This units is the small shock on the front suspension that helps buffer the vibration and travel of the front suspension.

Sway Bars (AKA - Anti-Sway Bars)- Tubular bars on the front and rear that tie into the axles, that help stabilize vehicle on turns.

Sway Bar Disconnects (AKA - Discos) these are after-market units that replace the factory sway bar mounts. These are used to release the sway bar much quicker and easier to allow for more articulation offroad.

Trac Bar- this is a bar that attaches to the axle and the body and keeps the suspension from moving side to side.

TRE - tie rod end .

UCA- upper control arms. These are the suspension arms that attach to the top of the axle.

Wheel Hubs- These are basically the front sealed wheel bearings. They have to be completely replaced because they can’t be rebuilt.



*Engine/Drivetrain/Axles
Cap and Rotor - Refers to Distributor cap and rotor inside cap.

Cat - Refers to a Catalytic Converter that is located before the muffler on a exhaust system.

Cat-Back Exhaust - aftermarket exhaust replacing everything after the catalytic converter.

Cold air Intake - Term used for a replacement intake system for the TB. Usually consisting of a smoother tube for better air flow in combination with a higher flowing air filter.

CV Joint- Constant Velocity Joint.

D30- refers to a Dana 30.

D35- refers to a earlier factory assembled Dana 35.

D35C- refers to a Dana 35 Custom rear axle, that was pre-assembled before shipped to factory.

D44- refers to a Dana 44 axle.

Diff- this is in reffrence to the differential on the axle. Also called a Pumpkin.

Double Cardan Joint- This is basically a back to back U joint setup that allows for more angles in the drive shaft.

EFI - Refers to Electronic Fuel Injection.

Header - Refers to Exhaust Header. Used to channel exhaust from manifold to exhaust pipe.

Locker- A traction adder like a LSD, just always on when driving straight. Most will disengage when wheels are turned.

LSD- Limitted Slip Differential is a traction adder that engages power to both rear wheels in cases where both are slipping. Is not always on.

MPI - Multiport Fuel Injection.

OBDII - Second generation On Board Diagnostics, more complicated, found in 96+ vehicles (hence all TJ's). Port under steering wheel under dash for Scanner plug in.

SYE- Slip Yoke Eliminator.

TB - Throttle Body

TC- Transfer Case. This unit engages or disengages the front drive shaft via a shift fork and chain drive.

TC Drop kit- Spacer used to lower TC to reduce Vibration when lift is installed to improve drive shaft angles in relation to the axles.

Trac lock- The factory option Limited Slip Differential.

Ujoint- refers to Universal Joint at the joined ends of the axles (front) and drive shafts (front and rear).



*General
BS - Back Spacing, refers to wheel hub in relation to out edge of rim.

BFH - big...uh...freaking hammer

COG - center of gravity

DW - Refers to term Death Wobble. Usually violent shaking of front end while driving 30+mph.

FSM - Factory Service Manual

Flex (aka "articulation") - suspension travel usually when one wheel is drooping down and the other wheel on the axle is "stuffed" or pushed up into the wheel-well.

Hack -N-Tap - Rubicon Express “cut and tap” budget SYE kit.

OEM - Refers to Original Equipment Manufacturer.

Open Element Filter - Term used for a cone or cylinder shaped air filter that is not shielded under the hood. These are used in place of the factory air box.
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Last edited by ThePhantum on Wed Oct 22, 2008 6:01 pm; edited 1 time in total
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PostPosted: Sun Feb 22, 2004 2:16 pm    Post subject: Re: For the newb...common terms and acronyms Reply with quote

thephantum wrote:


WWIT - If you deem so, could ya make this a sticky? thumbs




Concider it Stuck!

Great Job good mod
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Code3TJ
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PostPosted: Sat Apr 24, 2004 3:26 am    Post subject: Reply with quote

What's this CJ, YJ and TJ nonsense? Mr. Green
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PostPosted: Sun May 23, 2004 11:06 pm    Post subject: Reply with quote

What gear ratio should I run with XXX size tires?
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PostPosted: Fri Jun 11, 2004 4:41 pm    Post subject: Reply with quote

axle trouble shooting guide
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