Dodge Durango (HB). Manual — part 1087
Adapter, Valve Spring Compressor Off-vehicle 8464
ENGINE SUPPORT FIXTURE 8534
ENGINE LIFT FIXTURE 8984
VALVE SPRING COMPRESSOR - 9065
PUSHROD RETAINING PLATE - 9070
FRONT CRANK SEAL REMOVER - 9071
FRONT CRANK SEAL INSTALLER 9072
HB
ENGINE - 5.7L SERVICE INFORMATION
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AIR INTAKE SYSTEM
REMOVAL
Filter Element Only
Housing removal is not necessary for element (filter)
replacement.
1. Loosen clamp and disconnect air duct at air
cleaner cover.
2. Pry over 4 spring clips (5) from housing cover (3)
(spring clips retain cover to housing).
3. Release housing cover (3) from locating tabs (4) on
housing and remove cover (3).
4. Remove air cleaner element (filter) from housing.
5. Clean inside of housing before replacing element.
Fig. 1 AIR CLEANER COVER
1 - CLAMP
2 - AIR DUCT
3 - AIR CLEANER COVER
4 - LOCATING TABS
5 - CLIPS (4)
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ENGINE - 5.7L SERVICE INFORMATION
HB
Housing Assembly
1. Loosen clamp and disconnect air duct at air
cleaner cover.
2. Lift entire housing (1) assembly from 4 locating
pins (2).
INSTALLATION
1. Install filter element into housing.
2. Position housing cover into housing locating tabs
(4).
3. Pry up 4 spring clips(5) and lock cover to housing.
4. Install air duct to air cleaner cover and tighten hose
clamp to 3 N·m (30 in. lbs.) torque.
5. If any other hose clamps were removed from air
intake system, tighten them to 3.4 N·m (30 in. lbs.)
torque.
6. If any bolts were removed from air resonator hous-
ing or air intake tubing, tighten them to 4.5 N·m (40
in. lbs.) torque.
Fig. 2 AIR CLEANER HOUSING
1 - AIR CLEANER HOUSING ASSEMBLY
2 - LOCATING PINS (4)
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ENGINE - 5.7L SERVICE INFORMATION
9 - 1349
7. Install filter housing (1) into locating pins (2).
CYLINDER HEAD
OPERATION—CYLINDER HEAD
The cylinder head closes the combustion chamber allowing the pistons to compress the air fuel mixture to the cor-
rect ratio for ignition. The valves located in the cylinder head open and close to either allow clean air into the com-
bustion chamber or to allow the exhaust gases out, depending on the stroke of the engine.
DIAGNOSIS AND TESTING - CYLINDER HEAD GASKET FAILURE
A cylinder head gasket leak can be located between adjacent cylinders or between a cylinder and the adjacent
water jacket.
•
Possible indications of the cylinder head gasket leaking between adjacent cylinders are:
− Loss of engine power
− Engine misfiring
− Poor fuel economy
•
Possible indications of the cylinder head gasket leaking between a cylinder and an adjacent water jacket are:
− Engine overheating
− Loss of coolant
− Excessive steam (white smoke) emitting from exhaust
− Coolant foaming
CYLINDER-TO-CYLINDER LEAKAGE TEST
To determine if an engine cylinder head gasket is leaking between adjacent cylinders, follow the procedures in Cyl-
inder Compression Pressure Test in this section. An engine cylinder head gasket leaking between adjacent cylinders
will result in approximately a 50–70% reduction in compression pressure.
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ENGINE - 5.7L SERVICE INFORMATION
HB
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