Chevrolet Sonic Repair Manual: Neutral - Engine Running (Gen 1)
When the gear selector is moved to the Neutral (N) position, the hydraulic and electrical system operation is identical to Park (P) range. However, if Neutral is selected after the vehicle was operating in Reverse (R), the normally-high 35R pressure control solenoid 2 is commanded OFF and the following changes would occur in the hydraulic system.
- 3-5 Reverse Clutch Releases
-
Manual Valve
The manual valve is moved to the Neutral position and blocks line pressure from entering the reverse fluid circuit. Reverse fluid, from the 3-5-reverse clutch regulator valve and the clutch select valve, is opened to an exhaust passage at the manual valve.
35R Pressure Control Solenoid 2
The 35R PC solenoid 2 is commanded OFF allowing PCS 35 reverse clutch fluid from the 3-5-reverse clutch regulator valve to exhaust.
3-5-Reverse Clutch Regulator Valve
PCS 35 reverse clutch fluid exhausts, allowing 3-5-reverse clutch regulator valve spring force to move the 3-5-reverse clutch regulator valve to the released position. This allows 35 reverse clutch fluid pressure to exhaust into the compensator feed circuit in order to assist the 3-5-reverse clutch piston spring to quickly release the 3-5-reverse clutch.
3-5-Reverse Clutch
3-5-reverse clutch spring force, assisted by compensator feed pressure, moves the 3-5-reverse clutch piston to release the 3-5-reverse clutch plates and force 35 reverse clutch fluid to exhaust from the 3-5-reverse and 4-5-6 clutch housing assembly. The exhausting 35 reverse clutch fluid pressure is routed to the 3-5-reverse clutch regulator valve where it enters the 35 reverse clutch feed/compensator feed circuit.
Clutch Select Valve
When reverse fluid exhausts from the default override shuttle valve, shift solenoid fluid continues to hold the clutch select valve against clutch select valve spring force allowing 35 reverse clutch feed fluid to exhaust into the reverse circuit.
- Neutral?Engine Running
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Manual Shift Shaft and Seal Replacement
Special Tools
DT-45201 Cooler Line Seal Remover
DT-49101 Seal Installer
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Remove the battery tray. Refer ...
Neutral - Engine Running (Gen 2)
When the gear selector is moved to the Neutral (N) position, the hydraulic and
electrical system operation is identical to Park (P) range. However, if Neutral
is selected after the vehicle was ope ...
Other materials:
Vehicle Load Limits
It is very important to know how much weight the vehicle can carry. This weight
is called the vehicle capacity weight and includes the weight of all occupants,
cargo, and all nonfactory-installed options. Two labels on the vehicle show how
much weight it may properly carry: the Tire and Loadin ...
Washer Fluid
Open the cap with the washer symbol on it. Add washer fluid until the tank is
full. See Engine Compartment Overview for reservoir location.
Caution
. Do not use engine coolant (antifreeze) in the windshield washer. It
can damage the windshield washer system and paint.
. Do not mi ...
Rear Seat Shoulder Belt Guide Opening Bezel Replacement
Rear Seat Shoulder Belt Guide Opening Bezel Replacement
Callout
Component Name
1
Rear Seat Shoulder Belt Opening Bezel
Procedure
Push inward and upward from the front of the bezel to release from the
seat back ...
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