Heater System Dodge Cab & Chassis R2500

DESCRIPTION

All models use a blend-air system. Outside air enters heater through cowl opening and passes through a plenum chamber to heater core. Blend air door in heater housing controls temperature by either directing air through or around heater core. Air flow is then directed through dash panel to air distribution duct in passenger compartment.

On Durango, air taken from the front heater system is fed back through an air duct into the center console. At the rear of the center console, passengers can operate a 3 mode switch to adjust air flow. Temperature and blower speeds are controlled by the front heater control panel.

Blower Motor Switch

Fan speed is controlled with a rotary blower motor switch. There are 4 different fan speed settings: one low speed, 2 medium speeds, and one high speed.

Mode Control Knob

A rotary mode switch is used to control air flow. There are 5 different modes of operation: panel, floor/panel, floor, floor/defrost, and defrost.

Temperature Control Knob

Rotary control knob determines discharge air temperature by positioning blend/air door. On Dakota and Durango, temperature blend-air door is cable operated. On Ram Pickup and Ram Van/Wagon, temperature blend-air door is electrically operated. When a hot temperature is selected, all air flows through heater core.

Dakota & Durango

1. Ensure temperature control cable housing and core are connected at both heater control panel and heater assembly. Ensure heater control panel is properly installed.
2. Rotate temperature control knob so that knob pointer is at 12 o'clock position. Pull temperature control knob straight out from heater control panel until perimeter of knob (not knob pointer) protrudes about.25" (6 mm) from face of heater control panel.
3. Rotate temperature control knob clockwise so that knob pointer is at one o'clock position. Push in on knob slightly and continue rotating knob to its full clockwise stop. Place knob pointer at a position about.32" (8 mm) beyond end of Red stripe. Release knob. If knob is pointing at about.32" (8 mm) beyond end of Red stripe, go to next step. If knob is not pointing at about.32" (8 mm) beyond end of Red stripe, go back to step 2 and repeat adjustment procedure.
4. Rotate temperature control knob counterclockwise so that knob pointer is at 12 o'clock position. Push temperature control knob straight into heater control panel until perimeter of knob (not knob pointer) is flush with base of heater control panel.
5. Rotate temperature control knob to its full clockwise stop. Release knob. Knob pointer should be aimed at end of Red stripe. If knob is pointed at end of Red stripe, go to next step. If knob is not pointed at end of Red stripe, go back to step 2 and repeat adjustment procedure.
6. Rotate temperature control knob to its full counterclockwise stop. Release knob. If knob springs back, self-adjuster clip securing temperature control cable to blend-air door lever is improperly installed. See «TEMPERATURE CONTROL CABLE»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under REMOVAL & INSTALLATION. If knob does not springs back, temperature control cable adjustment is complete.

HEATER PERFORMANCE

Check cooling system. Check serpentine drive belt tension. Check radiator and radiator fan operation. Ensure that accessory vacuum supply line is connected at power brake booster (Dakota) or engine vacuum source (except Dakota).

TESTING

BLOWER MOTOR RELAYS

1. Blower motor relay is located in Power Distribution Center (PDC). On Ram Van/Wagon, high speed blower motor relay is located in engine compartment (on side of heater assembly). On all models, disconnect negative battery cable. Remove blower motor relay. Using an ohmmeter, check for continuity between terminals No. 87A and 30 of relay. (Scheme 1) If continuity does not exist, replace relay. If continuity exists, go to next step.
2. Using an ohmmeter, check for continuity between terminals No. 30 and 87 of relay. If continuity exists, replace relay. If continuity does not exist, go to next step.
3. Measure resistance between terminals No. 85 and 86 of relay. Reading should be 70-80 ohms. If reading is not as specified, replace relay. If reading is as specified, go to next step.
4. Using jumper wires, connect battery voltage to terminal No. 86 and ground terminal No. 85. (Scheme 1) Check that continuity exists between terminals No. 30 and 87. Check that continuity does not exist between terminals No. 87A and 30. If continuity is not as specified, replace blower motor relay. If continuity is as specified, relay is okay.

Scheme 1

BLOWER MOTOR RESISTOR

1. Disconnect negative battery cable. Disconnect blower motor resistor harness connector. Using an ohmmeter, check for continuity between all blower motor resistor terminals. If continuity exists between all terminals, go to next step. If continuity does not exist between all terminals, replace faulty blower motor resistor.
2. Check for open or short in circuits between blower motor resistor and heater control panel. Also check for open or short in wire between blower motor resistor and blower motor.

Dakota, Durango & Ram Pickup

1. Using a voltmeter, check for battery voltage at underhood power distribution center fuse No. 5 (40-amp) on Dakota and Durango; fuse No. 12 (40-amp) on Ram Pickup. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Red wire between battery and underhood power distribution center. If Red wire is okay, replace underhood power distribution center.
2. Disconnect negative battery cable. Remove heater control panel. See «HEATER CONTROL PANEL»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under REMOVAL & INSTALLATION. Disconnect heater control panel harness connector. Using an ohmmeter, check for continuity between heater control panel harness connector terminal No. 7 (Black wire on Dakota and Durango; Black/Orange on Ram Pickup) and ground. If continuity exists, go to step 4.
3. If continuity does not exist, repair open in Black wire or Black/Orange wire between heater control panel harness connector terminal No. 7 and ground connector located at lower right corner of instrument panel (Dakota and Durango) or behind center of instrument panel (Ram Pickup).
4. Place heater mode control knob to any position except OFF. Using an ohmmeter, check for continuity between heater control panel connector terminal No. 7 and terminals No. 3, 4, 5 and 6 while rotating blower motor switch. (Scheme 2)
5. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel and blower motor.

Scheme 2

Ram Van/Wagon

1. Disconnect negative battery cable. Remove heater control panel. See «HEATER CONTROL PANEL»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under REMOVAL & INSTALLATION. Disconnect heater control panel harness connector. Using an ohmmeter, check for continuity between heater control panel C3 harness connector terminal "C" (Black wire) and ground. (Scheme 4) Go to next step.
2. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between heater control panel and ground connector located at lower right of steering column.
3. Place heater mode control knob to any position except OFF. Using an ohmmeter, check for continuity between heater control panel C3 connector terminals "B" (Violet wire) and "C" (Black wire). If continuity exists, go to next step. If continuity does not exist, replace faulty heater control panel.
4. Using an ohmmeter, check for continuity between heater control panel C3 connector terminal "B" (Violet wire) and C1 connector terminal "E" (Violet wire). (Scheme 3) If continuity exists, go to next step. If continuity does not exist, repair open in Violet wire between heater control panel C3 and C1 connectors.
5. Using an ohmmeter, check for continuity between heater control panel C1 connector terminal "E" and terminals "B", "C" and "D" while rotating blower motor switch. (Scheme 3)
6. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel connector and blower motor relay.

Scheme 3

Scheme 4

HEATER CONTROL PANEL

1. Connect a vacuum gauge in line with Black heater vacuum supply hose (located at tee near power brake booster, in engine compartment). Position gauge so it can be viewed from passenger compartment.
2. Start engine. While observing vacuum gauge, rotate mode control knob to each mode position (one position at a time). Pause after each selection. Vacuum gauge should drop then return to 8 in. Hg shortly after each selection is made. If vacuum gauge reading is as specified, go to next step. If gauge reading is not as specified, check for vacuum leak in vacuum lines or heater control panel.
3. Move temperature control knob quickly to full hot and full cold positions. A distinct sound of blend-air door hitting its stops should be heard. No spring-back of knob should exist.
4. If temperature control knob operates as specified, temperature control system is okay. If temperature control knob does not operate as specified, check condition, routing, installation and adjustment of temperature control cable. See «TEMPERATURE CONTROL CABLE»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under ADJUSTMENTS.

HEATER OUTPUT

1. Start engine. Allow engine to reach normal operating temperature. With engine at idle, set controls to maximum heat, floor and high blower positions. Using a thermometer, check air temperature coming from floor vents. See «HEATER OUTPUT TEMPERATURE»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) table.
2. If floor outlet air temperature is lower than specified, check cooling system and electric cooling fan. See ELECTRIC COOLING FANS - ALL OTHER MODELS article.
3. Check that both return and supply heater hoses are hot. If coolant return hose is much cooler than supply hose, repair coolant obstruction in heater system. Check for air flow obstruction in heater system. Check blend air door for proper operation.

HEATER OUTPUT TEMPERATURE

REMOVAL & INSTALLATION

Removal & Installation (Ram Pickup)

Remove heater assembly. See HEATER ASSEMBLY . Remove blend air door servo motor electrical connector and mounting bolts. Remove blend air door servo motor. Ensure blend air door operates properly without restriction or binding. To install, reverse removal procedure.

Removal & Installation (Ram Van/Wagon)

Disconnect negative battery cable. Remove glove box. Disconnect wire harness connector from blend air door motor. Disconnect blend air door motor lever and remove link from retainer. Remove 3 mounting bolts and remove blend air door motor.

Removal (Dakota & Durango)

1. Disconnect negative battery cable. Remove and disassemble heater assembly. See «HEATER ASSEMBLY»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) . Disconnect blower motor lead at bottom of housing. Remove 6 bolts and blower motor housing cover.
2. Remove blower motor and fan assembly. Place reference marks on blower motor and fan for installation reference. Remove blower fan retainer clip. Pull blower motor fan off blower motor shaft.

Installation (Dakota & Durango)

Align reference marks made during removal. Press blower fan hub onto blower motor shaft. Ensure retainer clip ears are indexed over flats of blower motor shaft and fan hub. To complete installation, reverse removal procedure.

Removal (Ram Pickup)

1. Blower motor is located under glove box and can be removed from passenger compartment. (Scheme 5) Disconnect negative battery cable. Disconnect blower motor cooling tube. Remove blower motor electrical connector from retainer. Disconnect electrical connector.
2. Remove blower motor and fan assembly mounting bolts. Remove blower motor and fan assembly. Place reference marks on blower motor and fan for installation reference. Remove blower motor fan retainer clip. Pull blower motor fan off blower motor shaft.

Installation (Ram Pickup)

Align reference marks made during removal. Press blower fan hub onto blower motor shaft. Ensure retainer clip ears are indexed over flats of blower motor shaft and fan hub. Ensure blower motor seal is installed on housing. To complete installation, reverse removal procedure.

Removal (Ram Van/Wagon)

1. Disconnect negative battery cable. Remove top half of radiator shroud. At right side of engine compartment, disconnect blower motor wiring connector and motor cooling tube. Remove nuts and washers from blower motor backing plate to heater housing studs. (Scheme 6)
2. Remove blower motor assembly. Place reference marks on blower motor and fan for installation reference. Remove blower motor fan retainer clip. Pull blower motor fan off blower motor shaft. Inspect backing plate seal for breaks and adhesion.

Installation (Ram Van/Wagon)

Align reference marks made during removal. Press blower fan hub onto blower motor shaft. Ensure retainer clip ears are indexed over flats of blower motor shaft and fan hub. Apply a small bead of rubber sealant to blower motor side of rubber seal. To complete installation, reverse removal procedure.

Scheme 5

Scheme 6

Removal

1. Disconnect and isolate the battery negative cable.
2. Remove the cowl plenum cover/grille panel from the cowl top. See Vacuum Reservoir in the Removal and Installation section of this group for the procedures.
3. Reach through the cowl plenum access hole to remove the two hex screws that secure the front blower motor resistor to the cowl plenum panel. (Scheme 7)
4. Pull the front blower motor resistor and its wire harness out of the plenum panel and through the cowl plenum access hole far enough to access the wire harness connector.
5. Unplug the front blower motor resistor from the wire harness connector.
6. Remove the front blower motor resistor from the cowl plenum.

Scheme 7

Scheme 8

Installation

1. Plug the front blower motor resistor into the wire harness connector.
2. Install the front blower motor resistor to the cowl plenum panel by feeding the resistor and wire harness back through the cowl plenum access hole.
3. Install and tighten the two screws that secure the front blower motor resistor to the cowl plenum panel. Tighten the mounting screws to 2.2 Nm (20 in. lbs.)
4. Reinstall the cowl plenum cover/grille panel to the cowl top. See Vacuum Reservoir in the Removal and Installation section of this group for the procedures.
5. Connect the battery negative cable.

Blower motor resistor is located under glove box, attached to blower motor housing. (Scheme 5) Disconnect negative battery cable. Remove blower motor resistor connector. Remove resistor retaining bolts. Remove blower motor resistor. To install, reverse removal procedure.

Blower motor resistor is located behind glove box, attached to dash plenum panel. Disconnect negative battery cable. Remove glove box bin. Disconnect blower motor resistor connector. Remove resistor retaining bolts. Remove blower motor resistor. To install, reverse removal procedure.

1. Disconnect negative battery cable. Drain cooling system. Remove instrument panel. See «INSTRUMENT PANEL»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) .
2. In engine compartment, disconnect heater hoses and plug all openings. Remove 4 heater assembly nuts from engine compartment firewall. Inside vehicle, remove heater assembly support brace screw, and swing support brace out of way. Move passenger seat rearward.
3. Carefully pull heater assembly rearward until studs and heater core tubes clear firewall. Lower heater assembly and rotate assembly until studs are facing downward. Remove heater assembly from vehicle.
4. Place heater assembly on work bench with assembly housing cover facing down. Remove 2 bolts securing heater assembly housing cover to blower motor housing cover. Unplug vacuum harness connector from panel/defrost door actuator.
5. Remove floor duct from heater assembly housing. Remove 2 bolts securing heater assembly housing cover to lower housing near floor outlet. Turn assembly over. Disengage vacuum harness retainer and vacuum harness. Remove 13 screws securing housing cover.
6. Remove blend-air door lever. Gently pry panel-defrost door lever off. Pull up on heater assembly housing cover far enough to separate cover sealant and remove cover.

Ensure blower motor housing cover sealant is in place and in good condition. To complete installation, reverse removal procedure.

1. Disconnect negative battery cable. Drain cooling system. In engine compartment, remove coolant hoses from heater core tubes. Plug all openings. Remove coolant overflow bottle. Remove instrument panel. See «INSTRUMENT PANEL»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) . Remove Powertrain Control Module (PCM) and position aside. DO NOT disconnect 60-pin connector from PCM.
2. Remove attaching nuts from studs on engine compartment side of dash panel. Remove defrost duct. Disconnect electrical connectors. Remove attaching nuts from studs in passenger compartment side of dash panel. Remove heater assembly from vehicle.
3. Place heater assembly upside-down on work bench. Remove screw securing floor duct to bottom of heater assembly and slide floor duct off of center heat duct adapter. Unsnap center heat duct adapter from bottom of heater assembly housing. Remove screw hidden behind adapter. Remove remaining screws and separate heater assembly.

Ensure mode door pivot pins are properly inserted in holes. To complete installation, reverse removal procedure.

1. Disconnect negative battery cable. Drain engine cooling system. In engine compartment, protect generator from coolant spillage. Remove heater hoses from heater core tubes. Plug all openings. Remove grille, cowl grille support panel, right headlight assembly, and right radiator core support assembly. (Scheme 9)
2. From inside vehicle, remove glove box bin. Through glove box opening and from under instrument panel, remove nuts and bolts attaching heater assembly to dash panel.
3. Remove blower housing flange screws. Separate heater assembly from blower housing. (Scheme 6) Carefully remove heater assembly from vehicle.
4. To install, reverse removal procedure. Ensure heater housing top cover seal, firewall and side cowl seals are in good condition.

Scheme 9

Removal & Installation (Dakota & Durango)

1. Disconnect negative battery cable. On models equipped with A/T, unlock ignition switch. Set parking brake and place gear selector lever in "L" position. If equipped, set tilt steering column in lowest position.
2. On all models, carefully pry bezel away from instrument panel to disengage clips. Unplug connectors from cigarette lighter and auxiliary power outlet. Disconnect fog light switch (if equipped). Remove 4 heater control panel bolts.
3. Pull control panel outward enough to disconnect wiring connector, vacuum harness and temperature control cable. Remove heater control panel. To install, reverse removal procedure. Adjust temperature control cable. See «TEMPERATURE CONTROL CABLE»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under ADJUSTMENTS.

1. Disconnect negative battery cable. Reach under driver's side of instrument panel, near transmission tunnel, and unplug heater control panel-to-heater assembly vacuum harness connector. Disconnect vacuum harness from center air duct.
2. On models equipped with A/T, unlock ignition switch. Set parking brake and place gear selector lever in "L" position. If equipped, set tilt steering column in lowest position.
3. On all models, remove screw securing cluster bezel to instrument panel. (Scheme 10) Carefully pry bezel away from instrument panel to disengage clips. Unplug connectors from cigarette lighter and auxiliary power outlet.
4. Remove 4 bolts attaching heater control panel. Pull control panel outward enough to disconnect wiring connector and vacuum harness. Remove heater control panel. To install, reverse removal procedure.

Scheme 10

1. Disconnect negative battery cable. Remove engine cover from passenger compartment. Reach between upper dash panel engine housing extension and bottom of instrument panel. Disconnect vacuum harness connector located near left defroster outlet of distribution duct.
2. On models equipped with A/T, unlock ignition switch. Set parking brake and place gear selector lever in "L" position. If equipped, set tilt steering column in lowest position. Carefully pry bezel away from instrument panel to disengage clips. Pull bezel away far enough to clear trip odometer reset button. Remove bezel.
3. Remove 3 bolts from heater control panel. Pull heater control panel outward enough to disconnect electrical connectors and vacuum connector. Remove heater control panel. To install, reverse removal procedure.

Remove heater assembly from vehicle. See HEATER ASSEMBLY . Disable heater assembly and remove heater core.

1. Disconnect negative battery cable. Disable air bag system. See AIR BAG SYSTEM SAFETY article in GENERAL SERVICING. Place front wheels in straight-ahead position. Remove sill trim from both doorways. Remove kick panel covers from both sides of vehicle. Remove mounting bolts for hood release handle.
2. Remove steering column trim panel and support bracket. If equipped, remove tilt steering column lever. Remove upper and lower shrouds from steering column. Remove knee bolster. Unplug driver's side air bag module. Loosen multifunction switch wiring harness connector screw and disconnect from switch. Screw will remain in connector.
3. Disconnect PRNDL cable. Disconnect shift cable from steering column. Remove steering coupler lock pin. Remove toe plate retaining bolts. Remove steering column mounting bolts and remove steering column from vehicle.
4. Remove screw from bulkhead wiring harness connector and disconnect. Disconnect 2 body wiring harness connectors located next to bulkhead connector. Disconnect 3 wiring harness connectors located nearest to dash panel from junction block. Disconnect brake light switch. If equipped, disconnect Rear Wheel Anti-Lock (RWAL) brake module, located near steering column support brackets.
5. Disconnect plastic retainer clip from parking brake linkage rod, located at back of parking brake release handle. Remove rod end from parking brake handle. Remove instrument panel center support bracket. Unplug vacuum harness connector located at left end of heater assembly housing. Disconnect Air Bag Control Module (ACM) connector.
6. Remove glove box. Reach through glove box opening and disconnect antenna coaxial cable. Disconnect blower motor connector located above glove box opening, near support brace for heater assembly housing. Disconnect radio ground strap. Loosen instrument panel roll-own bracket bolts about 2 turns (bolts are located at lower corners, on both sides of instrument panel). Remove 5 bolts across top of dash panel, at base of windshield, removing center screw last.
7. Roll down instrument panel and install a temporary support hook that is about 18" (457 mm) in length. Install hook from center hole in instrument panel to center hole of dash panel. Pull lower instrument panel outward until both roll-down bracket bolts are in slotted roll-down position. Instrument panel should now be supported and away from firewall.
8. Disconnect 2 body wiring harness connectors, located on a bracket near right end of instrument panel. Disconnect blower motor resistor. Disconnect temperature control cable from heater assembly housing and remove from housing. Disconnect defrost duct flexible hose from heater assembly housing.
9. Ensure all electrical and vacuum connectors are disconnected and instrument panel is free and clear for removal. With the aid of an assistant, remove temporary support hook. Lift instrument panel off of roll-down bracket bolts and remove from vehicle.
10. To install, reverse removal procedure. Ensure all wiring and hoses are clear and not pinched. Adjusting temperature control cable. See «TEMPERATURE CONTROL CABLE»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system) under ADJUSTMENTS. Tighten bolts and nuts to specification. See «TORQUE SPECIFICATIONS»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system__torque-specifications) . Enable air bag system. See AIR BAG SYSTEM SAFETY article in GENERAL SERVICING.

1. Disconnect negative battery cable. Ensure front wheels are in a straight-ahead position and steering wheel is in LOCKED position. Disable air bag system. See AIR BAG SYSTEM SAFETY article in GENERAL SERVICING. Remove Air Bag Control Module (ACM) and bracket from floor panel transmission tunnel. Drain cooling system.
2. Remove left and right cowl side inner trim panels. Remove knee bolster/steering column cover. Remove hood release and parking brake release handle bolts from lower instrument panel support.
3. Disconnect driver's side air bag connector at lower left corner of instrument panel. If equipped, disconnect overdrive lock-out switch wiring harness connector from instrument panel wire harness near instrument panel lower reinforcement.
4. Pull PRNDL cable and twist to remove from position arm. Push tab on bottom of cable retainer upward, then squeeze sides to remove retainer from column. If equipped, remove tilt lever. Remove both upper and lower shrouds from column. Remove lower fixed column shroud. Loosen multifunction switch connector screw. Screw will remain in connector.
5. Ensure steering wheel is in LOCKED position. Remove remaining steering column electrical connectors. Remove air bag wiring harness from steering column wiring trough. Remove wiring trough from steering column. Remove steering column as an assembly from vehicle.
6. From driver's side of instrument panel, disengage parking brake release linkage rod from parking brake mechanism. Disconnect instrument panel wiring harness from parking brake mechanism. Disconnect 3 wiring harness bulkhead connectors located closest to dash panel.
7. Disconnect instrument panel left side wiring harness connectors. Remove screw from center of headlight and dash-to-instrument panel (bulkhead) connector, and disconnect connector. Disconnect instrument panel-to-door wiring harness. Disconnect instrument panel to stoplight switch connector. Disconnect vacuum harness for heater system.
8. If equipped with an Infinity sound system, disconnect Infinity wiring harness connector from instrument panel harness connector that is secured to bulkhead connector.
9. From passenger's side of instrument panel, disconnect radio antenna coaxial cable connector. Loosen right and left instrument panel roll-down bracket bolts about.50" (13 mm). Removing center screw last, remove 5 bolts holding top of instrument panel to top of dash panel.
10. Roll instrument panel downward and install a temporary support hook to center hole of dash panel. Support hook should support instrument panel in rolled-down position, about 18" (457 mm) away from dash panel. Disconnect remaining wiring harness connectors. With the aid of an assistant, remove temporary hook and lift instrument panel from vehicle.
11. To install, reverse removal procedure. Ensure all wiring and hoses are clear and not pinched. Tighten bolts and nuts to specification. See «TORQUE SPECIFICATIONS»(/dodge/cab-chassis-r2500/1996-2002/remont/heater/#heater-system__torque-specifications) . Enable air bag system. See AIR BAG SYSTEM SAFETY article in GENERAL SERVICING.

Disconnect negative battery cable. Disconnect but DO NOT remove instrument panel. See INSTRUMENT PANEL. Disconnect temperature control cable from heater control panel. Disconnect temperature control cable from flag retainer located at top of heater assembly housing. (Scheme 11) Remove temperature control cable self-adjuster clip and temperature control cable.

1. Before installing temperature control cable, ensure that self-adjuster clip is positioned as indicated. (Scheme 12) Measurements must be made with cable end bottomed against flag retainer on heater control panel end of cable housing.
2. Measure distance between center of self-adjusting clip and end of cable flag retainer. If distance is not as specified, adjust self-adjuster clip. To complete installation, reverse removal procedure.

Scheme 11

Scheme 12

Removal (Dakota, Durango & Ram Pickup)

1. Vacuum reservoir is located in engine compartment, under cowl plenum cover. Disconnect negative battery cable. With hood open, unsnap and remove wiper arm pivot cover. Remove wiper arm nut. Mark wiper arm and pivot for installation reference. Using battery terminal puller, remove wiper arms.
2. Remove weatherstrip along front edge of cowl plenum cover and cowl plenum panel. Remove plastic nuts, plastic rivets, and plastic push-in retainers from cowl plenum cover. Unsnap slotted center hole from adhesive backed snap fastener. Ensure not to remove fastener from cowl side panel.
3. Lift cowl plenum cover enough to access windshield washer nozzle and vacuum plumbing. Disconnect vacuum supply hose from vacuum reservoir. Remove cowl plenum cover. Remove bolts and vacuum reservoir.

Installation (Dakota, Durango & Ram Pickup)

To install, reverse removal procedure. Ensure all hoses are clear and not pinched. Tighten wiper arm nuts to specification. See TORQUE SPECIFICATIONS .

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Scheme 13

Scheme 14

Scheme 15

Scheme 16

See also:
• TEMPERATURE CONTROL CABLE
• TORQUE SPECIFICATIONS