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.
1996 Chevrolet Forward Control 5.7 K, AutomaticFACTORY OEM SERVICE PROCEDURE
Model Identification
MODEL IDENTIFICATION
| MODEL | BODYCODE | (1) ENGINE | ENG. ID | FUEL SYSTEM | IGNITION SYSTEM | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Astro & Safari | M, L | 4.3L (L35) | W | CSI (2) | Magnetic (3) | ||||||||||||
| Lumina Van, Silhouette & Trans Sport | U | 3.4L (LA1) | E | SFI | Magnetic | ||||||||||||
| Parcel/Delivery Commercial Van & Motorhome(P3,P/G3) | P | 4.3L (L35) | W | CSI (2) | Magnetic | ||||||||||||
| Parcel/Delivery Commercial Van & Motorhome(P3,P/G3) | P | 5.7L (L31) | R | CSI (2) | Magnetic | ||||||||||||
| Parcel/Delivery Commercial Van & Motorhome(P3,P/G3) | P | 6.5L (L65)(4) | F | Turbo Diesel | N/A | ||||||||||||
| Parcel/Delivery Commercial Van & Motorhome(P3,P/G3) | P | 7.4L (L29) | J | CSI (2) | Magnetic | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 4.3L (L35) | W | CSI (2) | Magnetic | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 5.0L (L30) | M | CSI (2) | Magnetic | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 5.7L (L31) | R | CSI (2) | Magnetic | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 6.5L (L65)(4) | F | Turbo Diesel | N/A | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 6.5L (L49)(5) | P | Diesel | N/A | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 6.5L (L56)(4) | S | Turbo Diesel | N/A | ||||||||||||
| Pickup (C/K 1/2/3) & Sierra | C, K | 7.4L (L29) | J | CSI (2) | Magnetic | ||||||||||||
| Suburban (C/K 1/2) | C, K | 5.7L (L31) | R | CSI (2) | Magnetic | ||||||||||||
| Suburban (C/K 1/2) | C, K | 6.5L (L65)(4) | F | Turbo Diesel | N/A | ||||||||||||
| Suburban (C/K 1/2) | C, K | 7.4L (L29) | J | CSI (2) | Magnetic | ||||||||||||
| S/T Series:Blazer,Bravada, Jimmy, Pickup, Sonoma, | S, T | 2.2L (LN2)(6) | 4 | SFI | Magnetic | ||||||||||||
| S/T Series:Blazer,Bravada, Jimmy, Pickup, Sonoma, | S, T | 4.3L (L35) | W | CSI (2) | Magnetic (3) | ||||||||||||
| S/T Series:Blazer,Bravada, Jimmy, Pickup, Sonoma, | S, T | 4.3L (LF6) | X | CSI (2) | Magnetic (3) | ||||||||||||
| Tahoe & Yukon | C, K | 5.7L (L31) | R | CSI (2) | Magnetic | ||||||||||||
| Tahoe & Yukon | C, K | 6.5L (L56)(4) | S | Turbo Diesel | N/A | ||||||||||||
| Van (G 1/2/3) | G | 4.3L (L35) | W | CSI (2) | Magnetic | ||||||||||||
| Van (G 1/2/3) | G | 5.0L (L30) | M | CSI (2) | Magnetic | ||||||||||||
| Van (G 1/2/3) | G | 5.7L (L31) | R | CSI (2) | Magnetic | ||||||||||||
| Van (G 1/2/3) | G | 6.5L (L49)(5) | P | Diesel | N/A | ||||||||||||
| Van (G 1/2/3) | G | 7.4L (L29) | J | CSI (2) | Magnetic | ||||||||||||
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Factory Service Tools
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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.
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