What are all the common terms when it come to cars? What are there meanings adn abbreviations?

rpm, is revelutions per minute,egr,is egr ualve.,mpg miles per gallon,and so on not complated at all.

hp -- horsepower -- a measure of engine power output based on how much is being moved over a certain distance and time. rpm -- revolutions per minute -- how fast the crankshaft is spinning. pcm -- powertrain control module -- computer that controls engine and emission functions. tcm -- transmission control module -- comp. that controls transmission function OBD-II -- Onboard Diagnostics, version II -- the federally-mandated protocol for engine control computers, effective 1996+ mpg -- miles per gallon -- as described above There are so many terms it is hard to really give your question an answer without writing a book. Are there any in particular you have heard and are curious about? This would be an easier way to answer your question.

just to name a few DOHC-dual overhead cam SOHC-single overhead cam VTEC-Variable valve timing electronic control AWD-All whell drive SHAWD-super handling all wheel drive LSD-limited slip differential 4WD-four wheel drive 2WD-two wheel drive PCM-Powertrain control module ECM-Engine control module DTC-diagnostic trouble codes OBDI-on board diagnostics, 95 and under OBDII-onboard diagnostics, 96 and up SRS-supplement restraint system ABS-antilock brake system SES-service engine soon EGR-exhaust gas recirculation SI-sequential injection PGMFI-programmed fuel injection ECT-engine coolant temperature AC-air conditioning ABS-anti lock braking system TCS-traction control system VSA-Vehicle stability assist MTO-ministry of transportation FORD-First on race day SATURN-Sound absolutely terrible, uncontrolable ratling noises PONTIAC-Poor old nut thinks its a cadillac CHEVROLET-Cheap Hardly Efficient Virtually Runs On Luck Every Time DODGE-Dead On Day Guarantee Expires GMC-Gods Mechanical Curse VOLKSWAGEN-Very Old Lowered Kustom Sedan With A Great Engine Noise HONDA-Hang On, Not Done Accelerating ACURA-A Car U Really Admire TOYOTA-Too Often Yankees Overprice This Auto BUICK-Big Ugly Import Car Killer KIA-Kills In Accidents BMW-Big Money Wasted Anyways hoped this helped.

CLOC- Centre Lane Owners Club, A UK Police term for the idiots who hog the middle lane causing a mobile road block- Out side of America it tends to be the law that you have to drive on the nearside lane unless overtaking