The 1988 Chevy S10 Blazer is a compact SUV featuring 2WD and 4WD configurations, available with 2.5L 4-cylinder or 2.8L V6 engines, manual or automatic transmissions, and various trim levels. This service manual covers maintenance procedures, specifications, troubleshooting, and repair instructions for all major systems including engine, transmission, brakes, suspension, electrical, and body components.
Complete technical specifications for 1988 Chevy S10 Blazer models.
| Specification | Details |
|---|---|
| Engine Options | 2.5L L4 TBI, 2.8L V6 TBI |
| Transmission | 4-speed manual, 5-speed manual, 3-speed automatic |
| Drivetrain | 2WD, 4WD with Insta-Trac |
| Wheelbase | 100.5 inches |
| Length | 169.5 inches |
| Fuel Capacity | 18.5 gallons |
| Towing Capacity | 2,000-4,000 lbs (depending on configuration) |
| Gross Vehicle Weight | 4,300-4,600 lbs |
| Brake System | Front disc, rear drum with power assist |
| Suspension | Independent front, leaf spring rear |
Service procedures for 2.5L and 2.8L engine configurations.
WARNING! Always disconnect battery before working on electrical systems. Use proper lifting equipment for engine removal.
Service instructions for manual and automatic transmissions, transfer case, and differentials.
CAUTION! Support vehicle properly with jack stands. Transmission fluid may be hot after operation.
Front suspension: Upper/lower control arms, torsion bars, shock absorbers. Rear suspension: Leaf springs, shock absorbers. Steering: Recirculating ball gearbox.
Front End Alignment: Caster 2° to 4°, Camber 0° to 1°, Toe-in 0° to 0.25°
Wheel bearing adjustment: Pre-load specification 15-30 in-lbs. Ball joint inspection: Check for vertical play. Steering gear adjustment: Sector shaft pre-load procedure. Tire rotation pattern: Front to rear, same side.
Battery: 12V, negative ground. Charging system: Alternator output 65-85 amps. Starting system: Starter motor specifications.
Tip: Always use fusible link of correct amperage when replacing damaged wiring.
Body panel replacement, door adjustment, glass service, and interior component repair.
WARNING! Use proper support when working with heavy components like doors and tailgates.
Recommended service intervals for optimal vehicle performance and longevity.
| Service Interval | Required Maintenance |
|---|---|
| 3,000 miles | Oil and filter change, tire rotation |
| 6,000 miles | Lube chassis, check fluid levels |
| 15,000 miles | Replace air filter, check brakes |
| 30,000 miles | Replace fuel filter, coolant flush |
| 60,000 miles | Replace spark plugs, transmission service |
Common problems and diagnostic procedures for 1988 S10 Blazer.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine cranks but won't start | Fuel pump, ignition module | Check fuel pressure, test spark, verify timing |
| Transmission slipping | Low fluid, worn bands | Check fluid level and condition, adjust bands |
| Brake pedal goes to floor | Master cylinder, leaks | Inspect for leaks, bench bleed master cylinder |
| Steering wander | Alignment, worn components | Check alignment, inspect tie rods and ball joints |
| Electrical gremlins | Ground connections, alternator | Clean battery terminals, check charging system |
Essential safety procedures for all service work.
CAUTION! Always use jack stands - never work under vehicle supported only by jack. Wear safety glasses. Keep work area clean and organized.
Factory-issued updates and corrections for known issues.
For additional technical support, contact GM Customer Service or authorized Chevrolet dealership.