Chevrolet Sonic Repair Manual: Tire and Wheel Balancing (Road Force Variation (RFV))
- ALL wheel/tire assemblies must have a RFV within spec before being mounted on vehicle.
- RFV is unrelated to tire balance.
- RFV is identifying the stiff portion of the tire and determining if it is within spec.
- If RFV is too high, it will result in a vibration condition.
- Do not attempt to measure RFV on tires that have temporary flat spots. If necessary, drive the vehicle to relieve the flat spots.
- Prior to measuring for RFV, the tires must be inflated to the specification on the label.
- Passenger Cars (including Crossover Vehicles) = 18 lbs.
- Truck Tires: (P) - metric = 24 lbs.
(LT) - metric = 35 lbs.
- It is recommended that RFV measurements are made prior to installation of balance weights. Once adequate road force levels have been achieved, move on to balance the assembly.
Important:
If a wheel/tire assembly is not within the RFV specification after match mounting, the tire must be returned to the tire manufacturer. DO NOT install tire/wheel assembly on a vehicle if it exceeds the RFV specification.
Tire and Wheel Balancing (Collet Cone Selection)
Important: Never use the hub cap bore to center the wheel onto
the balancer. The pilot bore (on the hub side of the wheel) is machined
to be concentric to very tight non - standard tole ...
Tire and Wheel Balancing (Wheel Pilot Bore Greasing)
Beginning with MY 2011 vehicle, pilot bore grease should be applied.
To enable this, grease must be applied to the pilot bore to prevent the
wheel from seizing onto the hub.
Refer to Adhesi ...
Other materials:
Parking Brake Lever Replacement
Removal Procedure
Remove the front floor console. Refer to Front Floor Console Replacement.
Ensure that the park brake lever is in the fully released position.
Disconnect the electrical connector from the park brake warning lamp
switch.
Using ONLY HAND TOOL ...
Fluid Passages (Gen 1)
Figure 1:
Case - Control Valve Body Side (Left)
Figure 2:
Case - Pump Side (Back)
Figure 3:
Control Valve Body - Case Side (Left)
Figure 4:
Control Valve Body - Channel Plate Side (Right
- No Valves)
Figure 5:
Pump Body - Pump Cove ...
Basic information
WARNING
Never operate your Nissan Armada while the parking brake is engaged.
Driving with the parking brake applied can cause overheating, reduced braking
performance, and eventual brake failure, significantly increasing the risk of
an accident.
Do not release the parking brake of you ...
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