1985 Chevrolet P30 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Step-Van Delivery Van 2-Door
- Base Stripped Chassis
Engines covered
- 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
- 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated
- 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
- 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
THE WHEEL MAY DEVELOP CRACKS BETWEEN THE DISC AND RIM. CONSEQUENCE OF DEFECT: IF THIS OCCURS AND
REPLACE WHEELS HAVING THE SUSPECTED MANUFACTURING CODE NUMBER.
THREE BOLTS WHICH ATTACH THE SILL THAT SUPPORTS THE BASE OF THE SEAT WERE OMITTED; THEREFORE VEHICLES DO NOT COMPLY WITH FMVSS 210 AND FMVSS 207.
INSTALL MISSING BOLTS.
DURING A COMBINED CORNERING AND BRAKING MANEUVER, THE TIE ROD END COULD CONTACT THE TIRE WALL.
REPLACE 16" WHEELS AND TIRES WITH 19 1/2" WHEELS AND TIRES; ALSO, REPLACE SPEEDOMETER GE
THE FAN BLADE, WHEN SUBJECTED TO HIGH STRESS LEVELS, CAN FATIGUE AND BREAK APART AT THE HUB WHILE THE ENGINE IS RUNNING.
REPLACE ENGINE FAN.
LEFT HAND LOWER CONTROL ARM CAN CRACK AND COULD EVENTUALLY CAUSE THE LOWER BALL JOINT TO SEPARATE FROM THE CONTROL ARM.
LOSS OF STEERING CONTROL CAN OCCUR WHICH COULD RESULT INA CRASH WITHOUT PRIOR WARNING.
REPAIR OR REPLACE LOWER LEFT CONTROL ARM.
REPLACED 4 TIRES DUE TO CORD RUPTURE ON 3 OUT OF 4 TIRES. TREAD SEPARATION BEGINNING. (DOT NUMBER: VNOR1WT TIRESIZE: 235/85R16)
FRONT AXLE BROKE RESULTING IN COLLISION WITH OTHER VEHICLE. (NEW JERSEY POLICE ACCIDENT REPORT).
