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.
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HOMESERVICE MANUALSCHEVROLET2007IMPALA V6-3.5LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLEACCUMULATORSERVICE AND REPAIR
2007 Chevrolet Impala V6-3.5L
Accumulator: Service and Repair
2007 Chevrolet Impala V6-3.5LSECTION Service and Repair
Accumulator and 2-1 Manual Servo Replacement
Removal Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the filter.
3. Remove the accumulator bolts (131).
4. Remove the manual 2-1 band servo cover bolts (103).
5. Remove the accumulator assembly.
6. Remove the manual 2-1 band servo (106-116).
Installation Procedure
1. Install the manual 2-1 band servo (106-116).
2. Install the accumulator assembly.
Notice: Refer to Fastener Notice.
3. Install the manual 2-1 band servo cover bolts (103).
Tighten the bolts to 25 N.m (18 lb ft).
4. Install the accumulator cover bolts (131).
Tighten the bolts to 12 N.m (106 lb in).
5. Install the filter.
6. Lower the vehicle.
Important: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
7. Reset the TAP values. Refer to Transmission Adaptive Functions.
RENDER: 1.0x
NO RELATED
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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.