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 MANUALSCHEVROLET1985S10 BLAZER 2.8 B, RWD, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - 2.2L DIESELTESTINGINJECTION NOZZLESSPRAY PATTERN
1985 Chevrolet S10 Blazer 2.8 B, RWD, Automatic
Spray Pattern
1985 Chevrolet S10 Blazer 2.8 B, RWD, AutomaticSECTION Spray Pattern
Remove nozzles and mount on injection nozzle tester. Pump tester lever about 1 stroke every 2 seconds to observe spray pattern. See Fig 1 . If spray is faulty, injector must be cleaned or replaced.
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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.