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 MANUALSCHEVROLET2025EXPRESS 3500 LS, VAN PASSENGER, 4.3L ENG VIN P, GASLABOR TIMESOTHER VARIANTENGINE PERFORMANCEFUEL DELIVERY SYSTEMFUEL SYSTEM CONTAMINATION SERVICECLEAN
2025 Chevrolet Express 3500 LS, Van Passenger, 4.3L Eng VIN P, Gas
Fuel System Contamination Service: Clean
2025 Chevrolet Express 3500 LS, Van Passenger, 4.3L Eng VIN P, GasSECTION Clean
WARNING: This page is about the Express 3500 Base, Cutaway, 4.3L Eng VIN P, Gas, which is a different variant/trim than selected.
FUEL INJECTION - GAS, PORT TYPE
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| V6,Gas, Alcohol Contamination | 0.5 | B | ||
| V6,Gas, Particulate Contamination | 7.3 | B | ||
| V6,Gas, Water Contamination | 7.3 | B | ||
| Combination Procedure: FUEL TANK: Drain & Refill: | ||||
| Gas | 0.2 | C | ||
| Combination Procedure: THROTTLE BODY ASSEMBLY: Reset: | ||||
| Gas, Throttle Body Idle Air Flow Compensation Reset | Includes: Additional time for use of scan tool to perform this procedure. | 0.2 | B | |
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.