Combustion leaks into the cooling system can also be checked by using the Bloc-Chek Kit (special tool #C-3685-A, Bloc-Chek Kit) or equivalent. Perform the test following the procedures supplied with the tool kit.
Scheme 47
Scheme 48
Scheme 49
Scheme 50
Scheme 51
Scheme 52
Scheme 53
- Remove the cowl grille (4).
- Remove the engine cover (1). Refer to «COVER, ENGINE, INSTALLATION, 5.7L»(ref-476518-S33162728662012060400000) .
- Perform the Fuel System Pressure Release procedure. Refer to «FUEL SYSTEM PRESSURE RELEASE»(ref-476558-S31136018322012060400000) .
- Disconnect the fuel supply line. Refer to «STANDARD PROCEDURE - QUICK-CONNECT FITTINGS»(ref-476558-S38056121542012060400000) .
- Disconnect and isolate the negative battery cable (2).
- Drain the cooling system. Refer to «STANDARD PROCEDURE»(ref-476513-S07101829012012060400000) .
- Remove the air cleaner assembly. Refer to «BODY, AIR CLEANER, REMOVAL, 5.7L»(ref-476518-S29574068052012060400000) .
- Remove closed crankcase ventilation system. CAUTION: When servicing or replacing exhaust system components, disconnect the oxygen sensor connector(s). Allowing the exhaust to hang by the oxygen sensor wires will damage the harness and/or sensor.
- Disconnect the oxygen sensor connectors (2).
- Saturate all exhaust bolts and nuts with Mopar® Rust Penetrant. Allow 5 minutes for penetration. NOTE: If separating the exhaust pipe/catalytic converter at the exhaust manifold flange. New bolts will be required.
- Remove the exhaust pipe to manifold bolts (3) (left side shown in illustration, right side similar) and disconnect the front exhaust pipe/catalytic converter assembly (4). Discard the nuts and bolts.
- Disconnect the evaporation control system.
- Disconnect the heater hoses (2). CAUTION: Do not let the tensioner arm snap back to the free arm position, sever damage may occur to the tensioner.
- Insert a suitable square drive ratchet into the square hole on belt tensioner arm (7).
- Release the belt tension by rotating the tensioner arm (7) clockwise . Rotate the belt tensioner arm (7) until the belt can be removed from the pulleys.
- Remove the accessory drive belt.
- Gently release the tensioner arm (7). NOTE: It is not necessary to disconnect the hoses from the power steering pump, for power steering pump removal.
- Remove the three power steering pump (1) mounting bolts (2) through the access holes in the pulley and secure out of the way.
- Remove the cylinder head covers and gaskets. Refer to «COVER(S), CYLINDER HEAD, REMOVAL, 5.7L»(ref-476518-S01379202482012060400000) .
- Remove the intake manifold and throttle body as an assembly. Refer to «MANIFOLD, INTAKE, REMOVAL, 5.7L»(ref-476518-S17277474012012060400000) . CAUTION: Rocker arm assemblies and pushrods must be installed in their original locations or engine damage could result.
- Identify the original locations for assembly, remove rocker arm assemblies and pushrods. Refer to «ROCKER ARM, VALVE, REMOVAL, 5.7L»(ref-476518-S07692378672012060400000) .
- Using the sequence shown in illustration, remove the head bolts from each cylinder head. Remove the cylinder head and discard the cylinder head gasket.