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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 47 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONTCC PULSE WIDTH MODULATION SOLENOID (4T65-E)REMOVAL

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

TCC Pulse Width Modulation Solenoid (4T65-E): Removal

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Removal

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Remove the case side cover. See CASE SIDE COVER (4T65-E) . Disconnect and reposition the electrical connectors from the following:
- The internal mode switch if equipped.
- 2-3 Shift solenoid valve assembly.
- Fluid pressure manual valve position switch assembly. See Figure .

CAUTION: Do not remove the bolt (205) that holds the oil pump together. See Figure .

Remove the oil pump bolts (206, 207). Remove the oil pump from the valve body. See Figure .
Disconnect the torque converter clutch pulse width modulation (TCC PWM) solenoid electrical connector. Remove the TCC PWM solenoid retaining clip (314F). See Fig 1 . Remove the TCC PWM solenoid (334). Remove the O-ring seals (305, 306) from the TCC PWM solenoid valve (334) ONLY if they are damaged.

Fig 1: Exploded View Of TCC Pulse Width Modulation Solenoid

Courtesy of GENERAL MOTORS CORP.

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.