Page 1617 of 5267
6. Remove power steering pump (Refer to 19 -
STEERING/PUMP - REMOVAL).
7. Remove access plug from left and right cylinder
heads for access to chain guide fasteners.
8. Remove the oil fill housing to gain access to the
right side tensioner arm fastener.
9. Remove crankshaft damper (Refer to 9 - ENGINE/
ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL) and timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL).
10. Collapse and pin primary chain tensioner.
CAUTION: Plate behind left secondary chain ten-
sioner could fall into oil pan. Therefore, cover pan
opening.
11. Remove secondary chain tensioners.
12. Remove camshaft position sensor (2).
Page 1618 of 5267

CAUTION: Care should be taken not to damage
camshaft target wheel. Do not hold target wheel
while loosening or tightening camshaft sprocket.
Do not place the target wheel near a magnetic
source of any kind. A damaged or magnetized tar-
get wheel could cause a vehicle no start condition.
CAUTION: Do not forcefully rotate the camshafts
or crankshaft independently of each other. Damag-
ing intake valve to piston contact will occur.
Ensure negative battery cable is disconnected to
guard against accidental starter engagement.
13. Remove left and right camshaft sprocket bolts.
14. While holding the left camshaft steel tube with
Special Tool 8428 Camshaft Wrench (2), remove
the left camshaft sprocket. Slowly rotate the cam-
shaft approximately 5 degrees clockwise to a neu-
tral position.
15. While holding the right camshaft steel tube with
Special Tool 8428 Camshaft Wrench (2), remove
the right camshaft sprocket.
16. Remove idler sprocket assembly bolt.
17. Slide the idler sprocket assembly and crank sprocket forward simultaneously to remove the primary and sec-
ondary chains.
18. Remove both pivoting tensioner arms and chain guides.
19. Remove primary chain tensioner.
INSPECTION
Inspect the following components:
Sprockets for excessive tooth wear. Some tooth markings are normal and nota cause for sprocket replace-
ment.
Idler sprocket assembly bushing and shaft for excessive wear.
Idler sprocket assembly spline joint. The joint should be tight with no backlash or axial movement.
Chain guides and tensioner arms. Replace these parts if grooving in plasticfaceismorethan1mm(0.039in.)
deep. If plastic face is severely grooved or melted, the tensioner lube jetmay be clogged. The tensioner
should be replaced.
Secondary chain tensioner piston and ratcheting device. Inspect for evidence of heavy contact between ten-
sioner piston and tensioner arm. If this condition exist the tensioner tensioner arm and chain should be
replaced.
Primary chain tensioner plastic faces. Replace as required.
Page 1619 of 5267

INSTALLATION
1. Using a vise, lightly compress the secondary chain
tensioner piston (5) until the piston step is flush
with the tensioner body. Using a pin or suitable
tool, release ratchet pawl by pulling pawl back
against spring force through access hole on side of
tensioner. While continuing to hold pawl back, Push
ratchet device to approximately 2 mm from the ten-
sioner body. Install Special Tool 8514 lock pin (3)
into hole on front of tensioner. Slowly open vise (1)
to transfer piston spring force to lock pin.
2. Position primary chain tensioner over oil pump and
insert bolts into lower two holes on tensioner
bracket. Tighten bolts to 28 Nꞏm (250 in. lbs.).
3. Install right side chain tensioner arm. Install Torx
bolt. Tighten Torxbolt to 28 Nꞏm (250 in. lbs.).
CAUTION: The silver bolts retain the guides to the
cylinder heads and the black bolts retain the
guides to the engine block.
4. Install the left side chain guide. Tighten the bolts to
28 Nꞏm (250 in. lbs.).
5. Install left side chain tensioner arm, and Torx
bolt.
Tighten Torx
bolt to 28 Nꞏm (250 in. lbs.).
6. Install the right side chain guide. Tighten the bolts
to 28 Nꞏm (250 in. lbs.).
7. Install both secondary chains onto the idler
sprocket. Align two plated links on the secondary
chains to be visible through the two lower openings
on the idler sprocket (4 o’clock and 8 o’clock).
Once the secondary timing chains are installed,
position special tool 8429 (1) to hold chains in
place for installation.
8. Align primary chain double platedlinks with the timing mark at 12 o’clock on the idler sprocket. Align the primary
chain single plated link with the timing mark at 6 o’clock on the crankshaftsprocket.
9. Lubricate idler shaft and bushings with clean engine oil.
Page 1620 of 5267

NOTE: The idler sprocket must be timed to the
counterbalance shaft drive gear before the idler
sprocket is fully seated.
10. Install all chains, crankshaft sprocket, and idler
sprocket as an assembly. After guiding both sec-
ondary chains through the block and cylinder
head openings, affix chains with a elastic strap or
equivalent. This will maintain tension on chains to
aid in installation. Align the timing mark (2) on the
idler sprocket gear (3) to the timing mark on the
counterbalance shaft drive gear (1), then seat
idler sprocket fully. Before installing idler sprocket
bolt, lubricate washer with oil, and tighten idler
sprocketassemblyretainingboltto34Nꞏm(25ft.
lbs.).
NOTE: It will be necessary to slightly rotate camshafts for sprocket installation.
11. Align left camshaft sprocket “L” dot to plated link on chain.
12. Align right camshaft sprocket “R” dot to plated link on chain.
CAUTION: Remove excess oil from the camshaft sprocket bolt. Failure to do so can result in over-torque of
bolt resulting in bolt failure.
13. Remove Special Tool 8429, then attach both sprockets to camshafts. Remove excess oil from bolts, then Install
sprocket bolts, but do not tighten at this time.
14. Verify that all plated links are aligned with the marks on all sprocketsand the “V6” marks on camshaft sprockets
are at the 12 o’clock position.
Page 1621 of 5267

CAUTION: Ensure the plate between the left sec-
ondary chain tensioner and block is correctly
installed.
15. Install both secondary chain tensioners. Tighten
boltsto28Nꞏm(250in.lbs.).
NOTE: Left and right secondary chain tensioners
are not common.
16. Remove all 3 locking pins from tensioners.
CAUTION: After pulling locking pins out of each
tensioner, DO NOT manually extend the tension-
er(s) ratchet. Doing so will over tension the
chains, resulting in noise and/or high timing chain
loads.
17. Using Special Tool 6958, Spanner with Adaptor
Pins 8346, (4) tighten left and right camshaft
sprocket bolts to 122 Nꞏm (90 ft. lbs.).
18. Rotate engine two full revolutions. Verify timing
marks are at the follow locations:
primary chain idler sprocket dot is at 12 o’clock
primary chain crankshaft sprocket dot is at 6
o’clock
secondary chain camshaft sprockets “V6” marks
are at 12 o’clock
counterbalancer shaft drive gear dot is aligned to
the idler sprocket gear dot
19. Lubricate all three chains with engine oil.
20. After installing all chains, it is recommended that
the idler gear end play be checked. The end play
must be within 0.10 -0.25 mm (0.004 - 0.010 in.).
If not within specification, the idler gear must be
replaced.
21. Install timing chain cover and crankshaft damper.
Refer to procedures.
22. Install cylinder head covers (Refer to 9 - ENGINE/
CYLINDER HEAD/CYLINDER HEAD COVER(S) -
INSTALLATION).
Page 1622 of 5267
NOTE: Before installing threaded plug in right cyl-
inder head, the plug mustbecoatedwithsealant
to prevent leaks.
23. Coat the large threaded access plug withMopar
Thread Sealant with Teflon, then install into the
right cylinder head (1) and tighten to 81 Nꞏm (60
ft. lbs.) .
24. Install the oil fill housing.
25. Install access plug in left cylinder head (2).
26. Install power steering pump (Refer to 19 -
STEERING/PUMP - INSTALLATION).
27. Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
28. Connect negative cable to battery.
Page 1623 of 5267

page page
ENGINE - 4.7L - SERVICE INFORMATION
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - PERFORMANCE............. 2316
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - MECHANICAL............... 2318
DIAGNOSIS AND TESTING - CYLINDER
COMPRESSION PRESSURE............... 2318
DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE...... 2319
DIAGNOSIS AND TESTING - ENGINE
DIAGNOSIS - INTRODUCTION............. 2320
STANDARD PROCEDURE
STANDARD PROCEDURE - REPAIR
DAMAGED OR WORN THREADS.......... 2320
STANDARD PROCEDURE - FORM-IN-
PLACE GASKETS AND SEALERS.......... 2320
REMOVAL ................................. 2321
INSTALLATION ............................. 2327
SPECIFICATIONS
SPECIFICATIONS - 4.7L ENGINE .......... 2331
TORQUE ................................. 2336
SPECIAL TOOLS
4.7L ENGINE ............................. 2338
ELEMENT - AIR CLEANER
REMOVAL ................................. 2342
INSTALLATION ............................. 2343
CYLINDER HEAD
DESCRIPTION
DESCRIPTION - CYLINDER HEAD ......... 2344
DESCRIPTION - VALVE GUIDES ........... 2344
DIAGNOSIS AND TESTING
CYLINDER HEAD GASKET................ 2344
REMOVAL
REMOVAL - LEFT CYLINDER HEAD ........ 2345
REMOVAL - RIGHT CYLINDER HEAD ...... 2348
CLEANING ................................. 2350
INSPECTION ............................... 2350
INSTALLATION
INSTALLATION - LEFT CYLINDER HEAD . . . 2351
INSTALLATION - RIGHT CYLINDER HEAD . . 2353
CAMSHAFT - LEFT
DESCRIPTION ............................. 2357
REMOVAL ................................. 2357
INSTALLATION ............................. 2359
CAMSHAFT - RIGHT
DESCRIPTION ............................. 2362
REMOVAL ................................. 2362
INSTALLATION ............................. 2365
COVER - CYLINDER HEAD
DESCRIPTION ............................. 2369REMOVAL
REMOVAL - RIGHT SIDE .................. 2369
REMOVAL - LEFT SIDE ................... 2369
CLEANING ................................. 2369
INSTALLATION
INSTALLATION - RIGHT SIDE .............. 2370
INSTALLATION - LEFT SIDE ............... 2370
VALVES & SEATS - INTAKE/EXHAUST
DESCRIPTION ............................. 2371
REMOVAL ................................. 2371
INSTALLATION ............................. 2372
ROCKER ARM - VALVE
DESCRIPTION ............................. 2374
DIAGNOSIS AND TESTING - HYDRAULIC
LASH ADJUSTER ......................... 2374
REMOVAL ................................. 2374
INSTALLATION ............................. 2375
SPRINGS-VALVE
DESCRIPTION ............................. 2376
REMOVAL ................................. 2376
INSTALLATION ............................. 2377
SEALS-VALVE GUIDE
DESCRIPTION ............................. 2378
ENGINE BLOCK
DESCRIPTION ............................. 2379
STANDARD PROCEDURE - CYLINDER BORE
HONING ................................. 2379
CLEANING ................................. 2379
INSPECTION............................... 2380
BEARINGS - CONNECTING ROD
STANDARD PROCEDURE - CONNECTING
ROD BEARING FITTING ................... 2381
PLUGS - CORE
REMOVAL ................................. 2384
INSTALLATION ............................. 2384
CRANKSHAFT
DESCRIPTION ............................. 2385
REMOVAL ................................. 2385
INSPECTION............................... 2386
INSTALLATION ............................. 2386
BEARINGS - CRANKSHAFT MAIN
STANDARD PROCEDURE - CRANKSHAFT
MAIN BEARING - FITTING ................. 2389
INSPECTION............................... 2390
SEAL - CRANKSHAFT OIL - FRONT
REMOVAL ................................. 2391
INSTALLATION ............................. 2392
SEAL - CRANKSHAFT OIL - REAR
DIAGNOSIS AND TESTING - REAR SEAL
AREA LEAKS . ............................ 2393
REMOVAL ................................. 2393
Page 1624 of 5267

INSTALLATION ............................. 2394
FLEX PLATE
REMOVAL ................................. 2395
INSTALLATION ............................. 2395
ROD - PISTON & CONNECTING
DESCRIPTION ............................. 2396
STANDARD PROCEDURE - PISTON FITTING . 2396
REMOVAL ................................. 2397
CLEANING ................................. 2397
INSPECTION ............................... 2398
INSTALLATION ............................. 2398
RINGS - PISTON
STANDARD PROCEDURE - PISTON RING
FITTING .................................. 2400
DAMPER - CRANKSHAFT
REMOVAL ................................. 2403
INSTALLATION ............................. 2404
COVER - STRUCTURAL
DESCRIPTION ............................. 2405
OPERATION ............................... 2405
REMOVAL ................................. 2405
INSTALLATION ............................. 2405
MOUNT - FRONT
REMOVAL ................................. 2406
INSTALLATION ............................. 2408
MOUNT - REAR
REMOVAL ................................. 2410
INSTALLATION ............................. 2410
LUBRICATION
DESCRIPTION .............................. 2411
OPERATION ................................ 2411
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - CHECKING
ENGINE OIL PRESSURE.................. 2412
DIAGNOSIS AND TESTING - ENGINE OIL
LEAK.................................... 2413
OIL
STANDARD PROCEDURE - ENGINE OIL
SERVICE ................................. 2414
FILTER - ENGINE OIL
REMOVAL ................................. 2416
INSTALLATION ............................. 2416
PAN - ENGINE OIL
REMOVAL ................................. 2417
INSTALLATION ............................. 2417
SWITCH - OIL PRESSURE
DESCRIPTION
DESCRIPTION ........................... 2418DESCRIPTION ........................... 2418
OPERATION
OPERATION ............................. 2418
OPERATION ............................. 2418
REMOVAL ................................. 2419
INSTALLATION ............................. 2419
PUMP - ENGINE OIL
REMOVAL ................................. 2420
DISASSEMBLY . ............................ 2420
CLEANING ................................. 2420
INSPECTION............................... 2420
ASSEMBLY................................ 2422
INSTALLATION ............................. 2422
MANIFOLD - INTAKE
DESCRIPTION ............................. 2423
DIAGNOSIS AND TESTING - INTAKE
MANIFOLD LEAKAGE ..................... 2423
REMOVAL ................................. 2423
CLEANING ................................. 2424
INSPECTION............................... 2424
INSTALLATION ............................. 2425
MANIFOLD - EXHAUST
DESCRIPTION ............................. 2426
REMOVAL ................................. 2426
CLEANING ................................. 2428
INSPECTION............................... 2428
INSTALLATION ............................. 2428
VALVE TIMING
DESCRIPTION - TIMING DRIVE SYSTEM ..... 2430
OPERATION - TIMING DRIVE SYSTEM....... 2430
STANDARD PROCEDURE
STANDARD PROCEDURE - MEASURING
TIMING CHAIN WEAR..................... 2431
STANDARD PROCEDURE - ENGINE TIMING
- VERIFICATION.......................... 2431
COVER - TIMING
REMOVAL ................................. 2436
INSTALLATION ............................. 2437
TIMING CHAIN & SPROCKETS
REMOVAL ................................. 2438
INSPECTION............................... 2441
INSTALLATION ............................. 2442
SHAFT - IDLER
REMOVAL ................................. 2446
INSTALLATION ............................. 2446