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 107 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONTFP MANUAL VALVE POSITION SWITCHINSTALLATION
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
TFP Manual Valve Position Switch: Installation
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Installation
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When installing the TFP switch handle the switch carefully, the fluid pressure manual valve position switch is very delicate.
- Carefully install the fluid pressure manual valve position switch (395). See Figure .
- Install the control valve body bolts (375, 379 and 381) that mount the fluid pressure manual valve position switch to the control valve body (300).
- Tighten the control valve body bolt (375) to 106 INCH lbs. (12 N.m), control valve body bolt (379) to 106 INCH lbs. (12 N.m) and control valve body bolt (381) to 70 INCH lbs. (8 N.m).
- Connect the transaxle wiring harness.
- Install the case side cover. See CASE SIDE COVER .
RENDER: 1.0x
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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.