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 MANUALSCHEVROLET1987SUBURBAN 3/4 TON 2WD V8-454 7.4LREPAIR AND DIAGNOSISMAINTENANCEFLUIDSTECHNICAL SERVICE BULLETINS
1987 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4L
Fluids: Technical Service Bulletins
1987 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4LSECTION Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Brake Fluid - Level And Filling Recommendations
- A/C Refrigerant - Contamination
- A/C - Retrofitting R-12 to R-134a
- Cooling System - Reconstituted Anti-Freeze Information
- Coolant - Information on Propylene Glycol Usage
- Warranty - Recycled Engine Coolant Policy
- Coolant - Used Anti-Freeze Policy
- M/T - Gear Oil Smell In Vehicles
- A/T - Updated ATF Fluid Color/Level Check Information
- A/T - Manual Update For ATF Level & Condition
- A/T - New Trans Fluid, Dexron IIE
- A/T - Proper Fluid Level Checking Procedure
- A/T - DEXRON III Fluid Introduction
- Locking Differential - Chattering on Turns
- Drivetrain - Recommended Axle Lubricant
- A/C - Use of Alternate Refrigerants In CFC 12
- Contaminated R12 Refrigerant - Testing & Handling
- A/C - Retrofitting R-12 Vehicles to R-134A
- P/S - Reduced Assist When Cold
- Cooling System - Coolant Recycling Information
- A/T - Water Or Coolant Contamination Information
- A/T - DEXRON(R)-VI Fluid Information
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- A/T - Fluid Oil Cooler Flow Test
- Engine - GM Dexos 1(R) And 2(R) Oil Specifications
- Engine - GM dexos 1(R) and dexos 2(R) Oil Specifications/Info.
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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.