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 MANUALSCHEVROLET1987STEP VAN P20, 7.4 W, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 33 (MAINTENANCE INFORMATION.)
1987 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40
Section 33 (Maintenance Information.)
1987 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40SECTION Section 33 (Maintenance Information.)
WARNING: This page does not describe the selected car, but rather 127 other vehicles, including the 1996 Chevrolet Chevy Van, 1995 GMC Vandura Special, 1995 GMC Vandura, 1995 GMC Rally Camper Special, and 1995 GMC Rally. However, it is still accessible from the selected car via links, so may be relevant.
- Model Identification
- Maintenance Service Interval Definitions
- Tire Rotation & Wheel Torque Information
- Rear Axle Lubrication
- Cooling System, Hoses & Clamps Information
- Off-Highway Vehicles Information
- Service Point Locations
- Engine Cover Removal
- Additional Service Information (Diesel Models)
- Additional Service Information (Gasoline Models)
- Brake Service Information
- Axle & Transmission Identification
- Service Labor Times
- Wheel & Tire Specifications
- Tire Rotation Patterns
- Lug Nut Tightening Patterns
- Battery Specifications
- Cautions & Warnings
- Supplemental Restraint System (Air Bag) 1994-95 Models
- Anti-Lock Brake System
- Replacing Blown Fuses
- Battery Warning
- Brake Pad Wear Indicator
- Catalytic Converter
- Coolant (DEX-Cool 1995-96 Models)
- Coolant (Propylene-Glycol Formulations)
- Diesel Fuel Anti-Fungal Additives
- Diesel Fuel Contamination
- Diesel Fuel Requirements
- Electrostatic Discharge Sensitive (ESD) Parts
- Fuel System Service
- Halogen Bulbs
- Radiator Cap
- Radiator Fan
- Warranty Information
- Notes
- Bumper-To-Bumper Plus Coverage Limited Warranty
- Battery Coverage
- Corrosion Coverage
- Emissions "Defect" & "Performance" Warranties (Except CALIFORNIA)
- Emission "Performance" Warranty (CALIFORNIA)
- Light-Duty Emission "Defects" Warranty (CALIFORNIA)
- Heavy-Duty Emission Control Systems (Gasoline Engines)
- Heavy-Duty Emission Control Systems (Diesel Engines)
- Fuses & Circuit Breakers
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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.