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ENGINE - 8.3L - SERVICE INFORMATION
DESCRIPTION ............................. 2713
DIAGNOSIS AND TESTING
INTRODUCTION . ......................... 2714
ENGINE DIAGNOSIS - PERFORMANCE .... 2715
ENGINE DIAGNOSIS - MECHANICAL ....... 2716
CYLINDER COMPRESSION PRESSURE
TEST.................................... 2718
CYLINDER COMBUSTION PRESSURE
LEAKAGE TEST.......................... 2718
CYLINDER HEAD GASKET FAILURE
DIAGNOSIS.............................. 2719
HYDRAULIC TAPPET NOISE DIAGNOSIS . . . 2720
ENGINE OIL LEAK INSPECTION ........... 2720
STANDARD PROCEDURE
ENGINE CORE AND OIL GALLERY PLUGS . 2722
FORM-IN-PLACE GASKETS AND SEALERS . 2722
ENGINE GASKET SURFACE
PREPARATION........................... 2723
HYDROSTATIC LOCKED ENGINE .......... 2723
REMOVAL - ENGINE ASSEMBLY . . ........... 2724
INSTALLATION - ENGINE ASSEMBLY ........ 2728
SPECIFICATIONS
ENGINE ................................. 2731
TORQUE ................................. 2736
SPECIAL TOOLS
ENGINE ................................. 2738
SYSTEM-AIR INTAKE
DESCRIPTION ............................. 2741
ELEMENT-AIR CLEANER
REMOVAL ................................. 2742
INSTALLATION ............................. 2743
HOUSING-AIR CLEANER
REMOVAL ................................. 2744
INSTALLATION ............................. 2745
MOUNTS-ENGINE
REMOVAL ................................. 2746
INSTALLATION ............................. 2747
MANIFOLD-INTAKE
DIAGNOSIS AND TESTING
INTAKE MANIFOLD LEAKS ................ 2748
REMOVAL ................................. 2748
INSPECTION ............................... 2750
INSTALLATION ............................. 2751
MANIFOLD-EXHAUST
REMOVAL ................................. 2754
INSPECTION ............................... 2755
INSTALLATION ............................. 2755
HEAD(S)-CYLINDER
REMOVAL - CYLINDER HEAD(S) ............. 2757CLEANING
CLEANING AND INSPECTION............. 2758
INSTALLATION - CYLINDER HEAD(S) ........ 2758
COVER(S)-CYLINDER HEAD
REMOVAL ................................. 2760
INSTALLATION ............................. 2761
ARMS-ROCKER
REMOVAL ................................. 2762
INSTALLATION ............................. 2762
SPRINGS/SEALS-VALVE
DIAGNOSIS AND TESTING
VALVE SPRING TESTING ................. 2763
STANDARD PROCEDURE - VALVE SPRING/
SEAL SERVICE IN-CAR ................... 2763
REMOVAL ................................. 2764
INSTALLATION ............................. 2765
INTAKE/EXHAUST - VALVES/SEATS/GUIDES
STANDARD PROCEDURE - VALVE AND
VALVE SEAT - REFACING ................. 2766
INSPECTION............................... 2767
COVER-TIMING CHAIN
REMOVAL ................................. 2769
INSTALLATION ............................. 2771
TIMING CHAIN AND SPROCKETS
REMOVAL ................................. 2774
INSTALLATION ............................. 2775
LUBRICATION
DESCRIPTION ............................. 2777
OPERATION ............................... 2777
DIAGNOSIS AND TESTING
CHECKING ENGINE OIL PRESSURE ....... 2777
ENGINE OIL LEAK ........................ 2777
OIL
STANDARD PROCEDURE
CHECKING ENGINE OIL LEVEL........... 2779
ENGINE OILAND FILTER CHANGE ........ 2779
COOLER & LINES-OIL
DESCRIPTION ............................. 2781
OPERATION ............................... 2781
STANDARD PROCEDURE - OIL COOLER LINE
QUICK CONNECT FITTING DISASSEMBLY/
ASSEMBLY............................... 2781
REMOVAL ................................. 2782
INSTALLATION ............................. 2783
PAN-OIL
REMOVAL ................................. 2784
INSTALLATION ............................. 2785
PUMP-OIL
REMOVAL ................................. 2788
DISASSEMBLY . ............................ 2788
CLEANING ................................. 2789
EXHAUST SYSTEM
TABLE OF CONTENTS
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EXHAUST SYSTEM
DESCRIPTION
GAS ENGINES ............................... 2
5.9L DIESEL ................................. 3
DIAGNOSIS AND TESTING
GAS ENGINE ................................ 4
DIESEL ENGINE............................. 5
SPECIFICATIONS
TORQUE .................................... 5
SPECIAL TOOLS ............................... 7
CONVERTER-CATALYTIC
DESCRIPTION ................................. 8
OPERATION ................................... 8
REMOVAL
3.7L/4.7L ENGINE ............................ 8
5.7L ENGINE ................................ 9
5.9L DIESEL ENGINE ......................... 9
8.3L ENGINE ............................... 10
INSPECTION ................................. 10
INSTALLATION
3.7L/4.7L ENGINE ........................... 10
5.7L ENGINE ............................... 11
5.9L ENGINE DIESEL ........................ 11
8.3L ENGINE ............................... 12
PIPE EXHAUST
REMOVAL
3.7L/4.7L/5.7L ENGINE ...................... 13
5.9L DIESEL ................................ 13
8.3L ENGINE ............................... 13
INSPECTION ................................. 14
INSTALLATION
3.7L/4.7L/5.7L ENGINE ...................... 14
5.9L DIESEL ................................ 14
8.3L ENGINE ............................... 15
HEAT SHIELDS
DESCRIPTION ................................ 16
REMOVAL .................................... 16
INSTALLATION ............................... 17
MUFFLER
REMOVAL
3.7L/4.7L/5.7L ENGINE ...................... 19
8.3L ENGINE ............................... 195.9L DIESEL ENGINE....................... 20
INSTALLATION
3.7L/4.7L/5.7L ENGINE ...................... 20
8.3L ENGINE ............................... 21
5.9L DIESEL ENGINE....................... 21
TAILPIPE
REMOVAL
3.7L/4.7L/5.7L ENGINE ...................... 22
5.9L DIESEL................................ 22
8.3L ENGINE ............................... 23
INSPECTION ................................. 23
INSTALLATION
3.7L/4.7L/5.7L ENGINE ...................... 23
5.9L DIESEL................................ 24
8.3L ENGINE ............................... 24
TURBOCHARGER SYSTEM
DIAGNOSIS AND TESTING
TURBOCHARGER BOOST PRESSURE ....... 25
TURBOCHARGER
DESCRIPTION ................................ 26
OPERATION .................................. 27
REMOVAL
TURBOCHARGER .......................... 29
TURBOCHARGER OIL DRAIN TUBE .......... 30
CLEANING ................................... 30
INSPECTION ................................. 30
INSTALLATION
TURBOCHARGER .......................... 31
TURBOCHARGER OIL DRAIN TUBE .......... 32
WASTEGATE - ELECTRONIC ACTUATOR
REMOVAL .................................... 33
INSTALLATION ............................... 33
CHARGE AIR COOLER AND PLUMBING
DESCRIPTION ................................ 34
OPERATION .................................. 34
DIAGNOSIS AND TESTING
CHARGE AIR COOLER SYSTEM - LEAKS.... 35
REMOVAL .................................... 35
CLEANING ................................... 36
INSPECTION ................................. 36
INSTALLATION ............................... 36