Ranger 2WD V6-182 3.0L (1995)
NOTE:
DRIVING A 4-WHEEL-DRIVE VEHICLE WITH THE REAR DRIVESHAFT REMOVED FURTHER CONFIRMS ANY VIBRATION
CONCERNS WITH THE FRONT DRIVE SYSTEM.
These vehicle vibrations can also be subdivided into those that occur at low speeds and those that are most noticeable at higher speeds. Since the
dividing line between low and higher speed vibrations is not clear, there will be vibrations that overlap the two ranges.
Typical Low Speed Vibrations (less than 72 km/h (45 mph))
^
Exhaust vibration
^
Engine harshness
^
Driveline vibration due to improper driveline angles
^
Power steering pump disturbances
^
Air conditioner compressor or drive belt vibrations
^
Takeoff shudder (clutch or driveline problems)
^
Brake roughness or harshness
^
Driveline roughness
^
Clutch torsion vibration
^
Driveline slip-yoke or U-joints, automatic transmission clutch slippage
Typical High Speed Vibrations (above than 72 km/h (45 mph))
^
Axle and companion flange runout or imbalance
^
Driveshaft imbalance
^
Excessive tire-wheel and drum assembly imbalance
^
Tire roughness due to high non-uniformity (force variation) or out-of-balance condition
^
Rear axle pinion gear pitch line runout
^
Excessive tire and wheel runout
^
Worn suspension components
^
Front end accessory vibrations
^
Exhaust vibration - Exhaust vibration is greatly reduced in Ranger exhaust systems de-coupled by a flexible coupling and mounted with blade and
block hangers
Driveshaft Vibrates
1.
Road test vehicle to determine critical vibration points. Note road speed, engine rpm and shift lever positions at which vibration occurs.
2.
Stop vehicle and run engine with clutch depressed (automatic transmission in Neutral) through critical speed ranges determined in Step 1 of
Driveshaft Vibrates.
3.
If vibration is gone, the driveshaft must be balanced as described in the 1997 Ranger Service Manual, Page 05-00-29.
Component Test
Driveline Vibration
^
Driveline vibration exhibits a higher frequency and lower amplitude than does high-speed shake.
^
Driveline vibration is directly related to the speed of the vehicle and is usually noticed at speeds of 72 km/h (45 mph) or higher.
^
Driveline vibration can be perceived as a tremor in the floor pan or is heard as a rumble, hum or boom.
