2001 DODGE RAM Service Repair Manual

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Page 1369 of 2889

DODGE RAM 2001 Service Repair Manual (2) Position the oil pump cover onto the timing
chain cover. Tighten cover screws to 14 N´m (125 in.
lbs.) torque.
(3) Make sure that inner ring moves freely after
cover is installed.
(4) Install the

(2) Position the oil pump cover onto the timing
chain cover. Tighten cover screws to 14 N´m (125 in.
lbs.) torque.
(3) Make sure that inner ring moves freely after
cover is installed.
(4) Install the timing chain cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
(5) Squirt oil into relief valve hole until oil runs
out.
(6) Install the relief valve and spring.
(7) Using a new pressure relief valve gasket,
install the relief valve plug. Tighten the plug to 20
N´m (15 ft. lbs.) torque.
(8) Install oil filter that has been filled with oil.
INTAKE MANIFOLD
DESCRIPTION
The aluminum intake manifold (Fig. 68) has two
plenum chambers an upper and lower which supply
air to five runners each. Passages across the longitu-
dinal center of the manifold feed air from the throttle
body to the plenum chambers.
DIAGNOSIS AND TESTINGÐINTAKE
MANIFOLD LEAKAGE
An intake manifold air leak is characterized by
lower than normal manifold vacuum. Also, one or
more cylinders may not be functioning.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS, OR THE FAN.
DO NOT WEAR LOOSE CLOTHING.
(1) Start the engine.
(2) Spray a small stream of water at the suspected
leak area.
(3) If a change in RPMs occurs, the area of the
suspected leak has been found.
(4) Repair as required.
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Drain the cooling system (Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
(3) Remove the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(4) Remove the generator brace and generator
(Fig. 69).
(5) Remove the A/C compressor brace (Fig. 69).
Remove the compressor and set aside.
Fig. 68 Upper and Lower Intake ManifoldÐ8.0L
Engine
1 - UPPER INTAKE MANIFOLD
2 - THROTTLE BODY (MPI)
3 - LOWER INTAKE MANIFOLD
Fig. 69 Generator and A/C Compressor Braces
1 - GENERATOR
2 - INTAKE MANIFOLD TO GENERATOR BRACE
3 - A/C COMPRESSOR
4 - INTAKE MANIFOLD TO A/C COMPRESSOR BRACE
9 - 222 ENGINE 8.0LBR/BE
OIL PUMP (Continued)

Page 1370 of 2889

DODGE RAM 2001 Service Repair Manual (6) Remove the air cleaner cover and filter.
Remove the air cleaner housing (Fig. 70). Discard the
gasket.
(7) Perform the Fuel System Pressure release pro-
cedure (Refer to 14 - FUEL SYSTEM/FUEL DELI

(6) Remove the air cleaner cover and filter.
Remove the air cleaner housing (Fig. 70). Discard the
gasket.
(7) Perform the Fuel System Pressure release pro-
cedure (Refer to 14 - FUEL SYSTEM/FUEL DELIV-
ERY - STANDARD PROCEDURE). Disconnect the
fuel lines (Refer to 14 - FUEL SYSTEM/FUEL
DELIVERY/QUICK CONNECT FITTING - STAN-
DARD PROCEDURE).
(8) Disconnect the accelerator linkage and if so
equipped, the speed control and transmission kick-
down cables.
(9) Remove the coil assemblies with the ignition
wires.
(10) Disconnect the vacuum lines.
(11) Disconnect the heater hoses and bypass hose.
(12) Remove the closed crankcase ventilation and
evaporation control systems.
(13) Remove the throttle body bolts and lift the
throttle body off the upper intake manifold (Fig. 71).
Discard the gasket.
(14) Remove upper intake manifold bolts.
(15) Lift the upper intake manifold out of the
engine compartment (Fig. 71). Discard the gasket.
(16) Remove the lower intake manifold bolts and
remove the manifold (Fig. 72).
(17) Discard the lower intake manifold gaskets
(Fig. 73).
CLEANING
Clean manifold in solvent and blow dry with com-
pressed air.
Clean cylinder block front and rear gasket surfaces
using a suitable solvent.
The plenum pan rail must be clean and dry (free of
all foreign material).
INSPECTION
Inspect manifold for cracks.
Inspect mating surfaces of manifold for flatness
with a straightedge.
INSTALLATION
(1) Install the intake manifold side gaskets. Be
sure that the locator dowels are positioned in the
head (Fig. 74).
(2) Insert MopartGEN II Silicone Rubber Adhe-
sive Sealant, or equivalent, into the four corner joints
an excessive amount of sealant is not required to
ensure a leak proof seal. However, an excessive
amount of sealant may reduce the effectiveness of
the flange gasket. The sealant should be approxi-
mately 5 mm (0.2 in.) in diameter. (Fig. 73).
Fig. 70 Air Intake Housing
1 - AIR INTAKE HOUSING
Fig. 71 Upper Intake Manifold and Throttle Body
1 - UPPER INTAKE MANIFOLD
2 - THROTTLE BODY (MPI)
3 - LOWER INTAKE MANIFOLD
Fig. 72 Lower Intake Manifold
BR/BEENGINE 8.0L 9 - 223
INTAKE MANIFOLD (Continued)

Page 1371 of 2889

DODGE RAM 2001 Service Repair Manual (3) Position the cross-over gaskets and press firmly
onto the block (Fig. 73).BE SURE THE BLOCK IS
OIL FREE..
(4) The lower intake manifold MUST be installed
within 3 minutes of sealant application. C

(3) Position the cross-over gaskets and press firmly
onto the block (Fig. 73).BE SURE THE BLOCK IS
OIL FREE..
(4) The lower intake manifold MUST be installed
within 3 minutes of sealant application. Carefully
lower intake manifold into position on the cylinder
block and heads. After intake manifold is in place,
inspect to make sure seals and gaskets are in place.
Finger start all the lower intake bolts.
(5) Tighten the lower intake manifold bolts in
sequence to 54 N´m (40 ft. lbs.) torque (Fig. 72).Recheck all bolts are tightened to 54 N´m (40 ft. lbs.)
torque.
(6) Using a new gasket, position the upper intake
manifold onto the lower intake manifold.
(7) Finger start all bolts, alternate one side to the
other.
(8) Tighten upper intake manifold bolts in
sequence to 22 N´m (16 ft. lbs.) torque (Fig. 71).
(9) Using a new gasket, install the throttle body
onto the upper intake manifold. Tighten the bolts to
23 N´m (200 in. lbs.) torque.
(10) Install closed crankcase ventilation and evap-
oration control systems.
(11) Connect the heater hoses and bypass hose.
(12) Connect the vacuum lines.
(13) Install the coil assemblies and the ignition
wires.
(14) Connect the accelerator linkage and if so
equipped, the speed control and transmission kick-
down cables.
(15) Install the fuel lines (Refer to 14 - FUEL SYS-
TEM/FUEL DELIVERY/QUICK CONNECT FIT-
TING - STANDARD PROCEDURE).
(16) Using a new gasket, install the air cleaner
housing. Tighten the nuts to 11 N´m (96 in. lbs.)
torque. Install the air cleaner filter and cover.
(17) Install the A/C compressor (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/A/C
COMPRESSOR - INSTALLATION). Position the com-
pressor brace and install the bolts. Tighten the brace
bolts to 41 N´m (30 ft. lbs.) torque.
(18) Install the generator (Refer to 8 - ELECTRI-
CAL/CHARGING/GENERATOR - INSTALLATION).
Position the generator brace and install the bolts.
Tighten the brace bolts to 41 N´m (30 ft. lbs.) torque.
(19) Install the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION).
(20) Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(21) Connect the negative cable to the battery.
(22) Start engine check for leaks.
EXHAUST MANIFOLD
DESCRIPTION
Engine exhaust manifolds (Fig. 75) are made of
high molybdenum ductile cast iron. A special ribbed
design helps control permanent dimensional changes
during heat cycles.
OPERATION
The exhaust manifolds collect the engine exhaust
exiting the combustion chambers, then channels the
Fig. 73 Lower Intake Manifold Gaskets
1 - INTAKE MANIFOLD GASKET
2 - SEALANT
3 - CROSS-OVER GASKETS
4 - SEALANT
5 - LOCATOR DOWELS
Fig. 74 Intake Manifold Flange
1 - LOCATOR DOWELS
2 - INTAKE MANIFOLD GASKETS
3 - LOCATOR DOWELS
9 - 224 ENGINE 8.0LBR/BE
INTAKE MANIFOLD (Continued)

Page 1372 of 2889

DODGE RAM 2001 Service Repair Manual exhaust gases to the exhaust pipes attached to the
manifolds.
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Raise and support the vehicle.
(3) Remove the bolts and nuts attaching the

exhaust gases to the exhaust pipes attached to the
manifolds.
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Raise and support the vehicle.
(3) Remove the bolts and nuts attaching the
exhaust pipe to the engine exhaust manifold..
(4) Lower the vehicle.
(5) Remove the exhaust heat shields (Fig. 76).
(6) Remove the dipstick bracket from the exhaust
manifold (right side only).(7) Remove bolts attaching manifold to cylinder
head.
(8) Remove manifold from the cylinder head. Dis-
card the gasket.
CLEANING
Clean mating surfaces on cylinder head and mani-
fold. Wash with solvent and blow dry with com-
pressed air.
INSPECTION
Inspect manifold for cracks.
Inspect mating surfaces of manifold for flatness
with a straight edge. Gasket surfaces must be flat
within 0.2 mm per 300 mm (0.008 inch per foot).
INSTALLATION
(1) Using a new gasket position the engine
exhaust manifold onto the cylinder head. Install bolts
and stud bolts in the proper position. (Fig. 76)
Tighten the bolts to 22 N´m (16 ft. lbs.) torque.
(2) Install the dipstick bracket on to the exhaust
manifold (right side only).
(3) Position washers and exhaust heat shields onto
the manifold stud bolts (Fig. 76). Be sure the tabs on
the heat shields are hooked over the top of the
exhaust gasket. Install the nuts and tighten to 20
N´m (175 in. lbs.) torque.
(4) Raise and support the vehicle.
(5) Assemble exhaust pipe to manifold.
(6) Lower the vehicle.
(7) Connect the negative cable to the battery.
(8) Start engine check for leaks.
TIMING BELT / CHAIN
COVER(S)
REMOVAL
(1) Disconnect the negative cable from the battery.
(2) Drain cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(3) Remove the serpentine belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - REMOV-
AL).
(4) Remove fan and fan shroud (Refer to 7 -
COOLING/ENGINE/RADIATOR FAN - REMOVAL).
(5) Unbolt A/C compressor and set on top of
engine.
(6) Remove generator, air pump, and bracket
assembly.
(7) Remove water pump (Refer to 7 - COOLING/
ENGINE/WATER PUMP - REMOVAL).
(8) Remove damper bolt and washer.
(9) Using Special Tool 1026 3-Jaw Puller remove
pulley/damper from the crankshaft. (Fig. 77)
Fig. 75 Exhaust ManifoldÐ8.0L Engine
1 - EXHAUST MANIFOLD
Fig. 76 8.0L Engine Exhaust ManifoldÐTypical
1 - EXHAUST MANIFOLD
2 - HEAT SHIELD
BR/BEENGINE 8.0L 9 - 225
EXHAUST MANIFOLD (Continued)

Page 1373 of 2889

DODGE RAM 2001 Service Repair Manual (10) Loosen oil pan bolts and remove the front oil
pan bolts that mount the pan to the timing chain
cover.
(11) Remove the cover bolts.
(12) Remove timing chain cover and gasket using
extreme caution

(10) Loosen oil pan bolts and remove the front oil
pan bolts that mount the pan to the timing chain
cover.
(11) Remove the cover bolts.
(12) Remove timing chain cover and gasket using
extreme caution to avoid damaging oil pan gasket.
(13) Inspect surface of cover. Remove any burrs or
high spots.
INSTALLATION
(1) Be sure mating surfaces of timing chain cover
and cylinder block are clean and free from burrs.
(2) Lubricate the pump rotors using petroleum
jelly or lubriplate (Refer to 9 - ENGINE/LUBRICA-
TION/OIL PUMP - INSTALLATION).
(3) Using a new cover gasket, carefully install tim-
ing chain cover to avoid damaging oil pan gasket.
Use a small amount of MopartSilicone Rubber Adhe-
sive Sealant, or equivalent, at the joint between tim-
ing chain cover gasket and the oil pan gasket. Finger
tighten the timing chain cover bolts at this time.
(4) Tighten timing chain cover bolts to 47 N´m (35
ft. lbs.) torque. Tighten oil pan bolts to 24 N´m (215
in. lbs.) torque.
(5) Using Special Tool C-3688 Crankshaft Pulley/
Damper Installer Install pulley/vibration damper
(Fig. 78)
(6) Prime oil pump by squirting oil in the oil filter
mounting hole and filling the J-trap of the front tim-
ing cover. When oil is running out, install oil filter
that has been filled with oil.(7) Install water pump and housing assembly
using new o-ring (Refer to 7 - COOLING/ENGINE/
WATER PUMP - INSTALLATION).
(8) Install generator, air pump, and bracket assem-
bly.
(9) Install A/C compressor (Refer to 24 - HEATING
& AIR CONDITIONING/PLUMBING/A/C COM-
PRESSOR - INSTALLATION).
(10) (10) Install the radiator fan (Refer to 7 -
COOLING/ENGINE/RADIATOR FAN - INSTALLA-
TION).
(11) Position the fan shroud and install the bolts.
Tighten the bolts to 11 N´m (95 in. lbs.) torque.
(12) Install the serpentine belt (Refer to 7 - COOL-
ING/ACCESSORY DRIVE/DRIVE BELTS - INSTAL-
LATION).
(13) Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(14) Connect the negative cable to the battery.
(15) Road test vehicle and check for leaks.
TIMING BELT/CHAIN AND
SPROCKETS
REMOVAL
(1) Remove timing chain cover and gasket using
extreme caution to avoid damaging oil pan gasket
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT / CHAIN COVER(S) - REMOVAL).
Fig. 77 PulleyÐDamper Removal
1-3JAWPULLER
Fig. 78 Installing Crankshaft
1 - SPECIAL TOOL C-3688
9 - 226 ENGINE 8.0LBR/BE
TIMING BELT / CHAIN COVER(S) (Continued)

Page 1374 of 2889

DODGE RAM 2001 Service Repair Manual (2) Aline camshaft and crankshaft centerline.
Remove camshaft sprocket attaching bolt and remove
timing chain and camshaft sprockets.
(3) Use puller 6444 and jaws 6820 to remove
crankshaft sprocket (F

Page 1375 of 2889

DODGE RAM 2001 Service Repair Manual (2) Turn crankshaft to line up the timing mark
with the crankshaft and camshaft centerline.
(3) Put chain on camshaft sprocket.
(4) Align timing marks and install chain and cam-
shaft sprocket onto cr

Page 1376 of 2889

DODGE RAM 2001 Service Repair Manual ENGINE 5.9L DIESEL
TABLE OF CONTENTS
page page
ENGINE 5.9L DIESEL
DESCRIPTION..........................231
DIAGNOSIS AND TESTING................232
ENGINE DIAGNOSIS - MECHANICAL.......232
SMOKE DIAGNO

ENGINE 5.9L DIESEL
TABLE OF CONTENTS
page page
ENGINE 5.9L DIESEL
DESCRIPTION..........................231
DIAGNOSIS AND TESTING................232
ENGINE DIAGNOSIS - MECHANICAL.......232
SMOKE DIAGNOSIS CHARTS............234
STANDARD PROCEDURE.................237
FORM-IN-PLACE GASKETS AND SEALERS . . 237
REPAIR DAMAGED OR WORN THREADS . . . 238
HYDROSTATIC LOCK...................238
REMOVAL.............................238
INSTALLATION..........................241
SPECIFICATIONS........................242
SPECIAL TOOLS........................244
ENGINE DATA PLATE
DESCRIPTION..........................244
AIR CLEANER ELEMENT
REMOVAL.............................244
INSTALLATION..........................245
CYLINDER HEAD
DESCRIPTION..........................246
REMOVAL.............................246
CLEANING.............................248
INSPECTION...........................250
INSTALLATION..........................250
CYLINDER HEAD COVER(S)
REMOVAL.............................253
CLEANING.............................253
INSPECTION...........................253
INSTALLATION..........................253
INTAKE/EXHAUST VALVES & SEATS
DESCRIPTION..........................253
STANDARD PROCEDURE.................253
VALVES, GUIDES AND SPRINGS..........253
VALVE LASH ADJUSTMENT AND
VERIFICATION........................256
REMOVAL.............................258
INSTALLATION..........................260
ROCKER ARM / ADJUSTER ASSY
DESCRIPTION..........................261
REMOVAL.............................261
CLEANING.............................262
INSPECTION...........................262
INSTALLATION..........................263
ENGINE BLOCK
STANDARD PROCEDURE.................263
CYLINDER BORE REFACING.............263
CYLINDER BORE DE-GLAZE.............264
CYLINDER BORE REPAIR...............265
CAM BORE REPAIR....................267INSPECTION...........................267
CAMSHAFT & BEARINGS (IN BLOCK)
REMOVAL.............................268
INSPECTION...........................272
INSTALLATION..........................273
CONNECTING ROD BEARINGS
STANDARD PROCEDURE.................274
CONNECTING ROD BEARING AND
CRANKSHAFT JOURNAL CLEARANCE......274
CRANKSHAFT
DESCRIPTION..........................275
CRANKSHAFT MAIN BEARINGS
STANDARD PROCEDURE.................275
MAIN BEARING CLEARANCE............275
CRANKSHAFT OIL SEAL - FRONT
REMOVAL.............................276
INSTALLATION..........................277
CRANKSHAFT OIL SEAL - REAR
REMOVAL.............................278
INSTALLATION..........................278
CRANKSHAFT REAR OIL SEAL RETAINER
REMOVAL.............................278
INSTALLATION..........................279
SOLID LIFTERS/TAPPETS
REMOVAL.............................280
CLEANING.............................281
INSPECTION...........................281
INSTALLATION..........................281
PISTON & CONNECTING ROD
DESCRIPTION..........................282
STANDARD PROCEDURE.................282
PISTON GRADING....................282
REMOVAL.............................285
CLEANING.............................285
INSPECTION...........................285
INSTALLATION..........................287
PISTON RINGS
STANDARD PROCEDURE.................288
PISTON RINGS - FITTING...............288
VIBRATION DAMPER
REMOVAL.............................289
INSPECTION...........................289
INSTALLATION..........................289
FRONT MOUNT
REMOVAL.............................290
INSTALLATION..........................290
REAR MOUNT
REMOVAL.............................291
INSTALLATION..........................291
BR/BEENGINE 5.9L DIESEL 9 - 229

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