Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Chevrolet Impala V6-3.5LFACTORY OEM SERVICE PROCEDURE
Powertrain Component Views
Powertrain Component Views
Transaxle
1 - Pressure Control (PC) Solenoid Valve
2 - 1-2 Shift Solenoid (SS) Valve
3 - Automatic Transmission Input Shaft Speed (ISS) Sensor
4 - 2-3 Shift Solenoid (SS) Valve
5 - Automatic Transmission Internal Mode Switch (IMS)
6 - Vehicle Speed Sensor (VSS)
7 - Automatic Transmission Fluid Pressure Manual Valve Position Switch
8 - Automatic Transmission Fluid Temperature Sensor
9 - Torque Converter Clutch (TCC) Solenoid Valve
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.