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 MANUALSBUICK1999REGAL LSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - TESTS W/CODES - INTRODUCTIONMODEL IDENTIFICATIONTRUCKS
1999 Buick Regal LS
Model Identification: Trucks
1999 Buick Regal LSSECTION Trucks
MODEL IDENTIFICATION (TRUCKS)
| Series (1) | Model | ||
|---|---|---|---|
| "C" | 2WD Pickup, Sierra, Silverado, Suburban, Tahoe & Yukon | ||
| "G" | Cutaway, Express, RV Cutaway & Savana | ||
| "K" | 4WD Pickup, Sierra, Silverado, Suburban, Tahoe, Yukon & AWD Escalade | ||
| "L" | AWD Astro & Safari | ||
| "M" | 2WD Astro & Safari | ||
| "P" | Forward Control (P42) & Motorhome (P32) | ||
| "S" | 2WD Blazer, Envoy, Jimmy, Sonoma & S10 Pickup | ||
| "T" | 4WD Blazer, Bravada, Envoy, Jimmy, Sonoma & S10 Pickup | ||
| "U" | Montana, Silhouette & Venture | ||
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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.