- Release fuel pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-3787-S20447242982000060900000). Remove No. 2 cylinder head cover, ignition coils, valve cover and gasket. (Scheme 66)
- Remove fuel pipe clamp from end of fuel pipe at end of fuel rail. Perform STEP 1 in illustration. (Scheme 67) Ensure area around fuel pipe and disconnect fitting is clean. CAUTION: Use care when disconnecting fuel pipe, as some residual fuel pressure may still exist in the fuel system.
- Depress both sides of retainer and pull fuel pipe with disconnect fitting from fuel pipe fitting. Perform STEP 2 in illustration. (Scheme 67) Note location of electrical connectors on fuel injectors for installation reference. Disconnect electrical connectors from fuel injectors. CAUTION: When removing fuel rail, use care not to allow fuel injectors to fall from fuel rail.
- Remove bolt from fuel pipe clamp at the cylinder head. (Scheme 66) Remove fuel rail-to-cylinder head bolts. Remove fuel rail with fuel injectors as an assembly. Remove the 2 spacers from cylinder head. Remove fuel injectors from fuel rail. Remove "O" ring and grommet from fuel injector.
Scheme 66
Scheme 67
Scheme 68
Scheme 69
- To install, reverse removal procedure using NEW grommets and "O" rings. Coat "O" ring with gasoline before installing "O" ring on fuel injector.
- Use twisting motion when installing fuel injector on fuel rail. Coat grommet contact surfaces with gasoline before installing fuel rail with fuel injectors. Ensure the 2 spacers are installed on cylinder head before installing fuel rail. When installing fuel rail, install fuel rail with fuel injectors on cylinder head. Loosely install fuel rail-to-cylinder head bolts.
- Ensure fuel injectors rotate smoothly. If fuel injectors do not rotate smoothly, check for improper "O" ring installation. Ensure electrical connector on each fuel injector is facing toward valve cover.
- Tighten fuel rail-to-cylinder head bolts and fuel pipe clamp-to-cylinder head bolt to specification. See «TORQUE SPECIFICATIONS»(ref-3787-S29870035352000051600000).
- Apply sealant at specified areas on cylinder head before installing gasket and valve cover. (Scheme 68) Using NEW seal washers, install valve cover bolts/nuts. Tighten valve cover bolts/nuts to specification in sequence. See «TORQUE SPECIFICATIONS»(ref-3787-S29870035352000051600000). (Scheme 69) Install ignition coils and tighten ignition coil retaining bolts to specification. See «TORQUE SPECIFICATIONS»(ref-3787-S29870035352000051600000). Install No. 2 cylinder head cover. CAUTION: DO NOT reuse old retainer when installing fuel pipe on fuel pipe fitting. Always use a NEW retainer.
- Apply light coat of engine oil on tip of fuel pipe fitting to allow for ease of disconnect fitting and fuel pipe installation. Using NEW retainer, install fuel pipe on fuel pipe fitting until "click" sound is heard. DO NOT reuse old retainer. Pull on fuel pipe to ensure fuel pipe is properly locked on fuel pipe fitting.
- Reinstall fuel pipe clamp. Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION under FUEL SYSTEMS in BASIC DIAGNOSTIC PROCEDURES - 4-CYLINDER article.