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 BULLETINSBY SYMPTOMRECALLSRECALL - INSUFFICIENT FUEL TANK SHIELD SPILL PROCTECTIONSERVICE PROCEDURE
1986 Chevrolet C 10 P/U 2WD V8-350 5.7L
Service Procedure
1986 Chevrolet C 10 P/U 2WD V8-350 5.7LSECTION Service Procedure
FIGURE 1 - FUEL TANK ASSEMBLY:
^ Raise and support vehicle on a hoist.
^ Remove the plastic fuel tank shield from the left hand mounted fuel tank, Figure No. 1.
^ Mark and then drill the four hole locations in the existing fuel tank shield, using the new shield extension as a template. Figure No. 1, View A. Use a 13/64" bit for drilling.
^ Rivet the two fuel tank shields together. The shield extension fits on the inside of the existing shield. The flat washers, used as reinforcements, should be visible on the outside of the shield assembly, Figure No. 1.
^ Reinstall the fuel tank shield assembly to the vehicle. Torque fasteners 10-15 N-m (7-11 ft.lbs.), Figure No. 1.
^ Repeat procedure on right hand fuel tank if the vehicle is equipped with RPO NL2, dual 20 gallon fuel tanks.
CAMPAIGN IDENTIFICATION LABEL:
CAMPAIGN IDENTIFICATION LABEL
Each vehicle modified in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label". Each label provides a space to include the five digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or ballpoint pen.
Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.
Apply "Campaign Identification Label" only on a clean dry surface.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.