Crown Victoria V8-281 4.6L SFI (1998)
Suspension Strut / Shock Absorber: Testing and Inspection
On Vehicle
NOTE: All vehicles are equipped with low-pressure gas pressurized hydraulic shock absorbers. These shock absorbers are not adjustable nor refillable
and cannot be serviced.
1. Oil Leak: A light film of oil (seepage) on the upper portion of the shock absorber is permissible and is a result of proper shock absorber
lubrication. Seepage is a condition in which a thin film of oil may be deposited on the shock absorber outer tube (body) and is normally noticed
due to the collection of dust in this area. Shock absorbers which exhibit this seepage condition are functional units and should not be replaced.
Leakage is a condition in which the entire shock absorber body is covered with oil and the oil will drip from the shock absorber onto the pavement.
If this condition exists:
a. Make sure that fluid observed is not from sources other than the shock absorber.
b. Replace the worn or damaged shock absorber.
2. Vehicle Sag: Many times shock absorbers are replaced in an effort to solve a vehicle sag concern. Shock absorbers by design are hydraulic
damping units only and unlike suspension springs, do not support any suspension loads. Therefore, replacing a shock absorber will not correct a
vehicle sag concern.
NOTE: Shock absorbers no longer need to be replaced in pairs when only one unit is worn or damaged.
3. Replacement in Pairs: In the past it was recommended that shock absorbers and/or springs be replaced in pairs if one unit became unserviceable.
Improved sealing, due to new technology and improved manufacturing quality checks, have added to the functional reliability of shock absorbers.
Replacement of front shock absorbers and/or spring assemblies and rear shock absorbers and/or springs in pairs is not required.
