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 MANUALSCHEVROLET1988STEP VAN P20, 7.4 W, AUTOMATIC, 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - TBIAPPLICATIONS
1988 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40
Fuel Injection System - TBI: Applications
1988 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40SECTION Applications
ROCHESTER THROTTLE BODY NO.
| Application | Part No. | ||
|---|---|---|---|
| Astro & Safari | |||
| 2.5L | 17087283 | ||
| 4.3L | 17087090 | ||
| "C & R" Series | |||
| 4.3L ("C" Series Only) | 17087167 | ||
| 4.3L ("R" Series Only) | 17087090 | ||
| 5.0L ("C" Series Only) | 17087004 | ||
| 5.7L | |||
| w/Heavy Duty Emissions | 17087005 | ||
| w/Light Duty Emissions | 17087100 | ||
| 7.4L | |||
| Auto. Trans. | 17087021 | ||
| Man. Trans. | 17087257 | ||
| "G" Series | |||
| 4.3L | 17087090 | ||
| 5.0L | 17087004 | ||
| 5.7L | |||
| w/Heavy Duty Emissions | 17087005 | ||
| w/Light Duty Emissions | 17087100 | ||
| "K & V" Series | |||
| 4.3L | 17087162 | ||
| 5.0L ("K" Series Only) | 17087019 | ||
| 5.7L | |||
| w/Heavy Duty Emissions | 17087020 | ||
| w/Light Duty Emissions | 17087101 | ||
| 7.4L | |||
| Auto. Trans. | 17087021 | ||
| Man. Trans. | 17087257 | ||
| "P" Series | |||
| 5.7L | 17087005 | ||
| 7.4L | Unavailable | ||
| "S" Series | |||
| 2.5L | 17087282 | ||
| 2.8L (2WD) | |||
| Auto. Trans. | Unavailable | ||
| Man. Trans. | 17087087 | ||
| 2.8L (4WD) | 17087088 | ||
| 4.3L | 17089018 | ||
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.