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 MANUALSCHEVROLET1986C 10 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSFUEL SYSTEM - COLD START INJECTOR O-RING PACKAGE
1986 Chevrolet C 10 P/U 2WD V8-350 5.7L
Fuel System - Cold Start Injector O-Ring Package
1986 Chevrolet C 10 P/U 2WD V8-350 5.7LSECTION Fuel System - Cold Start Injector O-Ring Package
Number: 87-153
Section: 6C
Date: JUNE, 1987
Subject: COLD START INJECTOR O-RING PACKAGE
Model and Year: 1985-87 VEHICLES WITH M.P.F.I. ENGINES
EQUIPPED WITH COLD START INJECTOR
TO: ALL CHEVROLET DEALERS
Some vehicles with cold start injectors may experience a condition where cold start injector O-ring(s) split or break when servicing the fuel rail assembly. A new service O-ring package, P/N 17111954, is now available through GMSPO. This package contains the cold start valve O-ring seal, cold start body O-ring seal, and the cold start tube O-ring seal.
Use applicable Labor Operation and Time.
Section: 6C
Date: JUNE, 1987
Subject: COLD START INJECTOR O-RING PACKAGE
Model and Year: 1985-87 VEHICLES WITH M.P.F.I. ENGINES
EQUIPPED WITH COLD START INJECTOR
TO: ALL CHEVROLET DEALERS
Some vehicles with cold start injectors may experience a condition where cold start injector O-ring(s) split or break when servicing the fuel rail assembly. A new service O-ring package, P/N 17111954, is now available through GMSPO. This package contains the cold start valve O-ring seal, cold start body O-ring seal, and the cold start tube O-ring seal.
Use applicable Labor Operation and Time.
RENDER: 1.0x
NO RELATED
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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.