Moderate the Intake Gaskets on a Chevy S10
The intake manifold on the four-cylinder Chevrolet S10 is a two-piece intake, with a gasket located between the lower and upper intake manifolds. Provided the backside intake manifold gasket is leaking, you should interchange both, in that the upper intake must come off to accumulation access to the lower intake manifold gasket. Provided one shot the upper intake manifold is leaking, there is no necessitate to interchange the lower intake manifold gasket.
Instructions
1. Establish the relay box near the Chauffeur's side fenderwell. Lift the subsume, and using the diagram on the underside of the involve, set and remove the fuel pump relay. You should be able to pull it absent of its socket with your fingers. Provided not, appliance a duo of darner nose pliers.
2. Disconnect the adverse battery cable and allot it aside, ensuring that it does not touch metal. Purpose all the vacuum lines and wiring harness connectors on the upper intake manifold and throttle intent. Loosen the hose clamps on all the vacuum lines on the throttle item, using the screwdriver. Pull the hoses off the throttle object.
3. Remove the throttle cable column bracket and the throttle item meeting, using the appropriate socket. Disconnect the vacuum brake booster hose, using the screwdriver. Remove the EGR pipe retaining bolts, using the appropriate socket. Remove the EGR adapter bolt, then remove the EGR pipe.
4. Unplug the idle air control motor, manifold absolute pressure sensor, throttle position sensor and the fuel injector harness connectors. Remove the right fender wheelhouse extension, using the appropriate socket.
5. Reinstall the EGR pipe to the EGR adapter. Tighten the bolts and tighten them to Eighteen foot-pounds of torque. Reinstall the EGR pipe-to-intake manifold bolts and tighten them to Eighty nine inch-pounds of torque. Reinstall the brake booster hose.
Disconnect the accelerator cable, and if you have cruise control, the cruise control cable, from the intake manifold, using the screwdriver. Mark the spark plug wires, using the tape and marker. Remove the spark plug wires from the plugs only. Remove the spark plug wire harness retainer from the heater hose pipe and set it aside.
7. Remove the engine wiring harness bracket located at the rear of the head, using the appropriate socket. Remove the intake manifold bolts, using the appropriate socket. Remove the fuel rail, using the appropriate socket. Lift the upper intake manifold off the lower intake manifold. Clean the gasket mating surface of the top of the lower intake manifold and the upper intake manifold, using shop rags, and if needed, a plastic scraper.
8. Fit the manifold gasket onto the top of the lower intake manifold gasket. Lower the upper intake manifold into place and tighten the bolts firmly. Reinstall the engine wiring harness bracket and tighten the bracket-to-valve bolts to Eighty eight inch-pounds of torque. Tighten the bracket-to-cylinder bolt to Eighteen foot-pounds of torque.
9. Reinstall the spark plug wire harness and retainer. Reattach the spark plug wires to the plugs, ensuring that they snap into place. Reinstall the throttle body assembly, throttle cable support bracket and vacuum lines. Reattach the accelerator and cruise control cables. Reconnect the fuel lines. Install the engine harness bracket retainers, transmission filler tube and fuel system evaporator pipe, and tighten the bolts.
10. Plug in the idle air control motor, manifold absolute pressure sensor, throttle position sensor and the fuel injector harness connector. Reinstall the wheelhouse extension. Reinstall the EGR adapter and tighten the bolts to Ninety seven inch-pounds of torque. Remove the retainers for the engine harness bracket, the transmission filler tube and the fuel system evaporator pipe, using the appropriate sockets. Disconnect the fuel pipes from the fuel rail, using the appropriate line wrench.6.
