1998 DODGE RAM 1500 Tow plug

(11) Remove the transfer plate from the valve
body. Note the location of all check balls (Fig. 137).
(12) Remove the check balls from the valve body.
(13) Remove the retainers securing the solenoid
switch valve, manual valve, and the low/reverse
switch valve into the valve body and remove the
associated valve and spring. Tag each valve and
spring combination with location information to aid
in assembly. (Fig. 138)
CLEANING
Clean the valve housings, valves, plugs, springs,
and separator plates with a standard parts cleaning
solution only. Do not use gasoline, kerosene, or any
type of caustic solution. (Fig. 139)
Do not immerse any of the electrical components in
cleaning solution. Clean the electrical components by
wiping them off with dry shop towels only.
Dry all except the electrical parts with compressed
air. Make sure all passages are clean and free from
obstructions.Do not use rags or shop towels to
dry or wipe off valve body components. Lint
from these materials can stick to valve body
parts, interfere with valve operation, and clog
filters and fluid passages.
Fig. 137 Check Ball Locations
Fig. 138 Valve Body Components
1 - SOLENOID SWITCH VALVE
2 - MANUAL VALVE
3 - LOW REVERSE SWITCH VALVE
4 - LOW REVERSE ACCUMULATOR
5 - 2ND CLUTCH ACCUMULATOR
6 - UNDERDRIVE ACCUMULATOR
7 - OVERDRIVE ACCUMULATOR
8 - 4TH CLUTCH ACCUMULATOR
9 - CHECK BALLS (7)
21 - 412 AUTOMATIC TRANSMISSION - 45RFE/545RFEDR
VALVE BODY (Continued)

DIAGNOSIS AND TESTING - PCV VALVE - 3.7L
V-6/ 4.7L V-8
(1) Disconnect PCV line/hose (Fig. 19) by discon-
necting rubber connecting hose at PCV valve fitting.
(2) Remove PCV valve at oil filler tube by rotating
PCV valve downward until locating tabs have been
freed at cam lock (Fig. 19). After tabs have cleared,
pull valve straight out from filler tube.To prevent
damage to PCV valve locating tabs, valve must
be pointed downward for removal. Do not force
valve from oil filler tube.
(3) After valve is removed, check condition of valve
o-ring (Fig. 19). Also, PCV valve should rattle when
shaken.
(4) Reconnect PCV valve to its connecting line/
hose.
(5) Start engine and bring to idle speed.
(6) If valve is not plugged, a hissing noise will be
heard as air passes through valve. Also, a strong vac-
uum should be felt with a finger placed at valve
inlet.
(7) If vacuum is not felt at valve inlet, check line/
hose for kinks or for obstruction. If necessary, clean
out intake manifold fitting at rear of manifold. Do
this by turning a 1/4 inch drill (by hand) through the
fitting to dislodge any solid particles. Blow out the
fitting with shop air. If necessary, use a smaller drill
to avoid removing any metal from the fitting.
(8)Do not attempt to clean the old PCV valve.
(9) Return PCV valve back to oil filler tube by
placing valve locating tabs (Fig. 19) into cam lock.
Press PCV valve in and rotate valve upward. A slight
click will be felt when tabs have engaged cam lock.
Valve should be pointed towards rear of vehicle.
(10) Connect PCV line/hose and connecting rubber
hose to PCV valve.
(11) Disconnect rubber hose from fresh air fitting
at air cleaner resonator box. Start engine and bring
to idle speed. Hold a piece of stiff paper (such as a
parts tag) loosely over the opening of the discon-
nected rubber hose.
(12) The paper should be drawn against the hose
opening with noticeable force. This will be after
allowing approximately one minute for crankcase
pressure to reduce.
(13) If vacuum is not present, disconnect each PCV
system hose at top of each crankcase breather (Fig.
20). Check for obstructions or restrictions.
(14) If vacuum is still not present, remove each
PCV system crankcase breather (Fig. 20) from each
cylinder head. Check for obstructions or restrictions.
If plugged, replace breather. Tighten breather to 12
N´m (106 in. lbs.) torque. Do not attempt to clean
breather.(15) If vacuum is still not present, disconnect each
PCV system hose at each fitting, and at each check
valve (Fig. 21). Check for obstructions or restrictions.
Fig. 19 PCV VALVE - 3.7L V-6 / 4.7L V-8
1 - O-RING
2 - LOCATING TABS
3 - CAM LOCK
4 - OIL FILLER TUBE
5 - PCV LINE/HOSE
6 - P C V VA LV E
Fig. 20 CRANKCASE BREATHERS (2) - 3.7L V-6 /
4.7L V-8
1 - CRANKCASE BREATHERS (2)
2 - REAR OF ENGINE
25 - 20 EVAPORATIVE EMISSIONSDR
PCV VALVE (Continued)

HEATED SEAT MODULE - INSTALLATION . . . 8E-7
HEATED SEAT MODULE - INSTALLATION . . 8G-15
HEATED SEAT MODULE - OPERATION.....8E-6
HEATED SEAT MODULE - OPERATION....8G-14
HEATED SEAT MODULE - REMOVAL.......8E-7
HEATED SEAT MODULE - REMOVAL.....8G-15
HEATED SEAT SENSOR - DESCRIPTION . . . 8G-11
HEATED SEAT SENSOR - DIAGNOSIS
AND TESTING.......................8G-11
HEATED SEAT SENSOR - OPERATION....8G-11
HEATED SEAT SENSOR - REMOVAL......8G-11
HEATED SEAT SWITCH - DESCRIPTION . . . 8G-11
HEATED SEAT SWITCH - DIAGNOSIS
AND TESTING.......................8G-12
HEATED SEAT SWITCH - INSTALLATION . . 8G-13
HEATED SEAT SWITCH - OPERATION.....8G-12
HEATED SEAT SWITCH - REMOVAL......8G-13
HEATED SEAT SYSTEM - DESCRIPTION....8G-7
HEATED SEAT SYSTEM - DIAGNOSIS
AND TESTING........................8G-8
HEATED SEAT SYSTEM - OPERATION.....8G-8
HEATER - 5.9L DIESEL - DESCRIPTION,
ENGINE BLOCK.......................7-37
HEATER - 5.9L DIESEL - INSTALLATION,
ENGINE BLOCK.......................7-38
HEATER - 5.9L DIESEL - OPERATION,
ENGINE BLOCK.......................7-38
HEATER - 5.9L DIESEL - REMOVAL,
ENGINE BLOCK.........................7-38
HEATER - DESCRIPTION, ENGINE BLOCK . . . 7-36
HEATER - DESCRIPTION, FUEL..........14-51
HEATER - DESCRIPTION, INTAKE AIR.....14-80
HEATER - DIAGNOSIS AND TESTING,
ENGINE BLOCK.......................7-36
HEATER - DIAGNOSIS AND TESTING,
FUEL..............................14-52
HEATER - INSTALLATION, ENGINE
BLOCK..............................7-37
HEATER - INSTALLATION, INTAKE AIR....14-80
HEATER - OPERATION, ENGINE BLOCK....7-36
HEATER - OPERATION, FUEL............14-51
HEATER - OPERATION, INTAKE AIR......14-80
HEATER - REMOVAL, ENGINE BLOCK......7-37
HEATER - REMOVAL, INTAKE AIR........14-80
HEATER AND AIR CONDITIONER -
DESCRIPTION........................24-1
HEATER AND AIR CONDITIONER -
OPERATION..........................24-1
HEATER CONTROL - DESCRIPTION, A/C . . . 24-14
HEATER CONTROL - INSTALLATION, A/C . . 24-15
HEATER CONTROL - REMOVAL, A/C......24-15
HEATER CORE - DESCRIPTION..........24-63
HEATER CORE - INSTALLATION.........24-63
HEATER CORE - OPERATION............24-63
HEATER CORE - REMOVAL.............24-63
HEATER INLET HOSE - INSTALLATION....24-64
HEATER INLET HOSE - REMOVAL........24-64
HEATER PERFORMANCE TEST -
DIAGNOSIS AND TESTING..............24-6
HEATER RELAY - DESCRIPTION, FUEL....14-52
HEATER RELAY - DESCRIPTION, INTAKE
AIR ...............................14-82
HEATER RELAY - INSTALLATION, FUEL . . . 14-53
HEATER RELAY - INSTALLATION, INTAKE
AIR ...............................14-82
HEATER RELAY - OPERATION, FUEL......14-52
HEATER RELAY - OPERATION, INTAKE
AIR ...............................14-82
HEATER RELAY - REMOVAL, FUEL.......14-52
HEATER RELAY - REMOVAL, INTAKE AIR . . 14-82
HEATER RETURN HOSE - INSTALLATION . . 24-65
HEATER RETURN HOSE - REMOVAL......24-64
HEIGHT ADJUSTMENT - 4WD (LD) -
STANDARD PROCEDURE.................2-3
HEIGHT MEASUREMENT - 4WD (LD) -
STANDARD PROCEDURE.................2-3
HEMI ENGINE - INSTALLATION, 3.7L/4.7L
AND 5.7L......................24-59,24-73
HEMI ENGINE - REMOVAL, 3.7L/4.7L
AND 5.7L......................24-57,24-71
HIGH BEAM INDICATOR - DESCRIPTION
. . 8J-28
HIGH BEAM INDICATOR - OPERATION
....8J-28
HIGH MOUNTED STOP LAMP -
INSTALLATION, CENTER
...............8L-11
HIGH MOUNTED STOP LAMP -
REMOVAL, CENTER
...................8L-11
HIGH MOUNTED STOP LAMP UNIT -
INSTALLATION, CENTER
...............8L-11HIGH MOUNTED STOP LAMP UNIT -
REMOVAL, CENTER...................8L-11
HIGH PRESSURE RELIEF VALVE -
DESCRIPTION.......................24-48
HIGH PRESSURE RELIEF VALVE -
OPERATION.........................24-48
HIGH SPEEDS - DESCRIPTION, TIRE
PRESSURE..........................22-7
HIGH/LOW RELAY - DESCRIPTION,
WIPER.............................8R-20
HIGH/LOW RELAY - DIAGNOSIS AND
TESTING, WIPER.....................8R-21
HIGH/LOW RELAY - INSTALLATION,
WIPER.............................8R-22
HIGH/LOW RELAY - OPERATION, WIPER . . 8R-20
HIGH/LOW RELAY - REMOVAL, WIPER . . . 8R-21
HIGH-PRESSURE FUEL LINE LEAKS -
DIAGNOSIS AND TESTING.............14-58
HINGE - INSTALLATION.....23-16,23-22,23-31,
23-46
HINGE - INSTALLATION, CENTER SEAT
BACK..............................23-79
HINGE - REMOVAL....23-16,23-22,23-31,23-46
HINGE - REMOVAL, CENTER SEAT BACK . . 23-78
HINGE COVER - INSTALLATION, CENTER
SEAT BACK INERTIA..................23-77
HINGE COVER - REMOVAL, CENTER
SEAT BACK INERTIA..................23-77
HITCH - INSTALLATION, TRAILER........13-25
HITCH - REMOVAL, TRAILER...........13-25
HOAT COOLANT - DESCRIPTION..........7-32
HOISTING - STANDARD PROCEDURE......0-20
HOLDDOWN - DESCRIPTION, BATTERY . . . 8F-14
HOLDDOWN - INSTALLATION, BATTERY . . . 8F-14
HOLDDOWN - OPERATION, BATTERY.....8F-14
HOLDDOWN - REMOVAL, BATTERY......8F-14
HOLDER - INSTALLATION, CUP.........23-51
HOLDER - REMOVAL, CUP.............23-51
HOLDING CLUTCHES - DESCRIPTION....21-371
HOLDING CLUTCHES - OPERATION.....21-372
HOLE PLUG - INSTALLATION, CAMSHAFT
CORE..............................9-206
HOLE PLUG - REMOVAL, CAMSHAFT
CORE..............................9-205
HOLE REPAIR - DESCRIPTION,
THREADED........................Intro.-8
HONING - STANDARD PROCEDURE,
CYLINDER BORE.................9-128,9-38
HOOD - INSTALLATION................23-47
HOOD - REMOVAL....................23-46
HOOK - INSTALLATION, COAT...........23-66
HOOK - REMOVAL, COAT..............23-66
HOOK ASSEMBLY - INSTALLATION,
FRONT TOW........................13-23
HOOK ASSEMBLY - REMOVAL, FRONT
TOW ..............................13-23
HORN - DIAGNOSIS AND TESTING.......8H-1
HORN - INSTALLATION.................8H-2
HORN - REMOVAL....................8H-2
HORN SWITCH - DESCRIPTION..........8H-2
HORN SWITCH - DIAGNOSIS AND
TESTING............................8H-2
HORN SYSTEM - DESCRIPTION..........8H-1
HORN SYSTEM - DIAGNOSIS AND
TESTING............................8H-1
HORN SYSTEM - OPERATION............8H-1
HOSE - GEAR TO COOLER -
INSTALLATION, RETURN..........19-44,19-45
HOSE - GEAR TO COOLER - REMOVAL,
RETURN......................19-44,19-45
HOSE - INSTALLATION, FRONT BRAKE.....5-13
HOSE - INSTALLATION, HEATER INLET....24-64
HOSE - INSTALLATION, HEATER RETURN . 24-65
HOSE - INSTALLATION, PRESSURE . 19-44,19-45
HOSE - INSTALLATION, REAR BRAKE......5-12
HOSE - REMOVAL, FRONT..............5-12
HOSE - REMOVAL, HEATER INLET.......24-64
HOSE - REMOVAL, HEATER RETURN.....24-64
HOSE - REMOVAL, PRESSURE.....19-44,19-45
HOSE - REMOVAL, REAR BRAKE
.........5-11
HOSE - RESERVOIR TO COOLER -
INSTALLATION, RETURN
..........19-44,19-45
HOSE - RESERVOIR TO COOLER -
REMOVAL, RETURN
.............19-44,19-45
HOSE ASSEMBLY - INSTALLATION, REAR
TUBE
...............................5-13
HOSE ASSEMBLY - REMOVAL, REAR
TUBE
...............................5-12HOSE CLAMPS - DESCRIPTION...........7-3
HOSE CLAMPS - OPERATION.............7-5
HOSES/TUBES - DESCRIPTION, WASHER . 8R-11
HOSES/TUBES - OPERATION, WASHER . . . 8R-11
HOUSING - ASSEMBLY, HVAC...........24-35
HOUSING - DIAGNOSIS AND TESTING,
CLUTCH..............................6-7
HOUSING - DISASSEMBLY, HVAC........24-35
HOUSING - INSTALLATION, CLUTCH.......6-9
HOUSING - INSTALLATION, GEAR........9-300
HOUSING - INSTALLATION, HVAC........24-36
HOUSING - INSTALLATION, ROCKER.....9-255
HOUSING - REMOVAL, CLUTCH...........6-9
HOUSING - REMOVAL, GEAR...........9-299
HOUSING - REMOVAL, HVAC...........24-34
HOUSING - REMOVAL, ROCKER.........9-255
HOUSING BUSHING AND SEAL -
INSTALLATION, EXTENSION...........21-440
HOUSING BUSHING AND SEAL -
REMOVAL, EXTENSION...............21-440
HOUSING COVER - INSTALLATION, GEAR . 9-301
HOUSING COVER - REMOVAL, GEAR.....9-301
HOUSING FLUID LEAK - DIAGNOSIS AND
TESTING, CONVERTER.........21-144,21-318
HOUSING SEAL - INSTALLATION,
ADAPTER...............21-128,21-364,21-85
HOUSING SEAL - INSTALLATION,
EXTENSION . 21-128,21-201,21-507,21-536,21-85
HOUSING SEAL - REMOVAL, ADAPTER . . 21-128,
21-364,21-85
HOUSING SEAL - REMOVAL,
EXTENSION . 21-128,21-201,21-507,21-536,21-85
HOUSING SEAL AND DUST BOOT -
INSTALLATION, EXTENSION.....21-476,21-571
HOUSING SEAL AND DUST BOOT -
REMOVAL, EXTENSION.........21-476,21-571
HOW TO USE WIRING DIAGRAMS -
DESCRIPTION.....................8W-01-1
H-SECTION REPLACEMENT - STANDARD
PROCEDURE, REAR FRAME............13-13
HUB / BEARING - INSTALLATION.........2-32
HUB / BEARING - REMOVAL.............2-31
HVAC HOUSING - ASSEMBLY...........24-35
HVAC HOUSING - DISASSEMBLY........24-35
HVAC HOUSING - INSTALLATION........24-36
HVAC HOUSING - REMOVAL............24-34
HYDRAULIC BOOSTER - DIAGNOSIS
AND TESTING........................5-30
HYDRAULIC LASH ADJUSTER -
DIAGNOSIS AND TESTING.........9-125,9-32
HYDRAULIC PRESSURE TEST -
DIAGNOSIS AND TESTING......21-141,21-316
HYDRAULIC SCHEMATICS, SCHEMATICS
AND DIAGRAMS..............21-176,21-337
HYDRAULIC TAPPETS - DIAGNOSIS AND
TESTING...........................9-210
HYDRAULIC TAPPETS - INSTALLATION . . . 9-211
HYDRAULIC TAPPETS - REMOVAL.......9-211
HYDROBOOST - INSTALLATION..........5-27
HYDROBOOST - INSTALLATION, ALL
EXCEPT.............................5-27
HYDROBOOST - REMOVAL..............5-26
HYDROBOOST - REMOVAL, ALL EXCEPT . . . 5-26
HYDRO-BOOST BRAKE BOOSTER -
INSTALLATION........................5-32
HYDRO-BOOST BRAKE BOOSTER -
REMOVAL
...........................5-31
HYDROFORM FENDER RAIL REPAIR -
STANDARD PROCEDURE
...............13-11
HYDROSTATIC LOCK - STANDARD
PROCEDURE
...................9-190,9-240
IDENTIFICATION - DESCRIPTION,
FASTENER
.........................Intro.-5
IDENTIFICATION AND INFORMATION -
DESCRIPTION, SECTION
.............8W-01-6
IDENTIFICATION NUMBER -
DESCRIPTION, VEHICLE
..............Intro.-1
IDLE AIR CONTROL MOTOR -
DESCRIPTION
.......................14-28
IDLE AIR CONTROL MOTOR -
INSTALLATION
.......................14-29
IDLE AIR CONTROL MOTOR -
OPERATION
.........................14-28
IDLE AIR CONTROL MOTOR - REMOVAL
. . 14-29
IDLER SHAFT - INSTALLATION
......9-179,9-81
IDLER SHAFT - REMOVAL
..........9-179,9-81
IGNITION - SPECIFICATIONS, TORQUE
.....8I-3
16 INDEXDR
Description Group-Page Description Group-Page Description Group-Page