1999 DODGE RAM sensor

Fig. 29: Locating Fuel Pump Module & Components (Ram Pickup)
Courtesy of Chrysler Corp.
Fig. 30: Locating Fuel Pump Module & Components (Ram Van & Ram Wagon)\
Courtesy of Chrysler Corp.
FUEL LEVEL SENSOR

NOTE: Fuel level sensor may also be referred to as fuel gauge
sending unit.
Removal
1) Fuel level sensor is mounted on fuel pump module. See
Fig. 31 . Fuel pump module is located on top of fuel tank. See Figs. 27
-30.
2) Remove fuel pump module. See FUEL PUMP MODULE under FUEL
SYSTEM. Disconnect electrical connector for fuel pump and fuel level
sensor from electrical connector from bottom side of electrical
connector mounted on top of fuel pump module. See Fig. 31.
3) Remove locking collar from electrical connector for fuel
pump and fuel level sensor. Locking collar must be removed so wires
for fuel level sensor may be removed from the electrical connector for
fuel pump and fuel level sensor.
CAUTION: Note location of wires in electrical connector for fuel pump
and fuel level sensor for installation reference. Wires must
be installed in correct location.
4) Mark wire location in electrical connector for fuel pump
and fuel level sensor for installation reference. Remove wires for
fuel level sensor from electrical connector for fuel pump and fuel
level sensor.
5) Note location of notch and locking tab at end of fuel
level sensor. See Fig. 31. Carefully push locking tab away from notch
while sliding fuel level sensor down the channels, toward bottom of
fuel pump module. Note wire routing when removing fuel level sensor
from fuel pump module. Remove fuel level sensor.
Installation
1) Install fuel level sensor on channels of fuel pump module.
Ensure wires are properly routed. Slide fuel level sensor onto fuel
pump module until fuel level sensor snaps into place. Ensure locking
tab is fully seated.
2) Install wires for fuel level sensor in electrical
connector for fuel pump and fuel level sensor. Install locking collar.
Install electrical connector for fuel pump and fuel level sensor on
electrical connector on bottom side of electrical connector mounted on
top of fuel pump module. Reinstall fuel pump module. To complete
installation, reverse removal procedure.
Fig. 31: Locating Fuel Level Sensor, Fuel Pump & Fuel Pump Inlet
Strainer On Typical Fuel Pump Module
Courtesy of Chrysler Corp.
FUEL PRESSURE REGULATOR

Removal (Dakota & Durango)
1) EVAP leak detection pump and EVAP leak detection pump
filter must be replaced as an assembly. EVAP leak detection pump is
located at driver's side of engine compartment, just below battery
tray. See Fig. 40. EVAP leak detection pump filter is attached to
outside of battery tray, just in front of power distribution center.
See Fig. 40 .
2) Remove battery. Disconnect hose from bottom of EVAP leak
detection pump filter that goes to EVAP leak detection pump. Remove
retaining clip and disconnect EVAP leak detection pump filter from
battery tray.
3) Disconnect wiring harness for battery temperature sensor
from bottom of battery tray. Power distribution center must be removed
for access to EVAP leak detection pump.
4) Remove power distribution center-to-fender retaining screw
at rear of power distribution center. Unsnap power distribution center
from battery tray. Carefully position power distribution center aside.
5) Remove battery tray. Disconnect electrical connector and
vacuum hoses at EVAP leak detection pump. Use care not to damage
vacuum hoses during removal. Remove retaining bolts and EVAP leak
detection pump.
NOTE: Vacuum hoses and hose to EVAP leak detection pump filter must
be properly installed on EVAP leak detection pump and all
hoses must be in good condition. If hoses are not properly
installed or are damaged, a Diagnostic Trouble Code (DTC)
will be set in the Powertrain Control Module (PCM).
Installation
1) Install EVAP leak detection pump on battery tray. Tighten
retaining bolts to specification. See TORQUE SPECIFICATIONS.
2) To install remaining components, reverse removal
procedure. Ensure vacuum hoses and hose to EVAP leak detection pump
filter are in good condition and properly installed on EVAP leak
detection pump.
Fig. 40: Locating EVAP Leak Detection Pump & EVAP Leak Detection
Pump Filter (Dakota & Durango)

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Application Ft. Lbs. (N.m)\
Crankshaft Position Sensor Bolt
2.5L ..................................................... 14 (19)\
3.9L, 5.2L & 5.9L ............................................ (1)
8.0L ......................................................... ( 1)
Downstream Oxygen Sensor ................................... 22 (30)\
Distributor Hold-Down Bolt ................................. 17 (23)\
EVAP Canister-To-Mounting Bracket Nut
Dakota & Durango ......................................... 17 (23)\
Ram Pickup ................................................... ( 2)
Ram Van & Ram Wagon .......................................... ( 3)
Fuel Pump Module Lock Nut
Dakota ................................................... 40 (54)\
Ram Pickup ............................................... 32 (43)\
Ram Van & Ram Wagon ...................................... 40 (54)\
Fuel Rail Bolt
2.5L ......................................................... ( 4)
3.9L, 5.2L & 5.9L ........................................ 17 (23)\
8.0L ..................................................... 11 (15)\
Fuel Tank Strap Nut
Dakota & Durango ......................................... 40 (54)\
Ram Pickup ............................................... 30 (41)\
Ram Van & Ram Wagon .......................................... ( 5)
IAT Sensor ................................................. 20 (27)\
Park/Neutral Switch ........................................ 25 (34)\
Power Steering Pressure Switch (2.5L) ...................... 16 (22\
)
Spark Plug ................................................. 30 (41)\
Throttle Body Bolt
2.5L ......................................................... ( 4)
3.9L, 5.2L & 5.9L ........................................ 17 (23)\
Throttle Body Nut (8.0L) ................................... 16 (22\
)
Upper Intake Manifold Bolt (8.0L) ...................... ( 6) 16 (22)
Upstream Oxygen Sensor ..................................... 22 (30)\
Wheel Lug Nut (Dakota & Durango) ......................... 100 (136\
)
INCH Lbs. (N.m)
Air Cleaner Housing-To-Throttle
Body Nut (Dakota & Durango) ............................. 96 (10.8\
)
Camshaft Position Sensor Bolt (8.0L) ...................... 50 (5.6\
)
Engine Coolant Temperature Sensor ........................ 96 (10.8)\
EVAP Canister Mounting Bracket-To
Body Nut (Ram Van & Ram Wagon) .......................... 95 (10.7\
)
EVAP Leak Detection Pump Filter
Bolt (Ram Pickup, Ram Van & Ram Wagon) ................... 65 (7.3\
)
EVAP Leak Detection Pump Bolt ............................. 11 (1.2)\
EVAP Purge Solenoid Nut (Dakota & Durango) ................ 75 (8.5\
)
IAC Motor Bolt ............................................ 60 (6.8)\
Ignition Coil Bolt/Nut
Dakota, Durango, Ram Van & Ram Wagon ......................... ( 7)
Ram Pickup
3.9L, 5.2L & 5.9L ........................................... ( 7)
8.0L .................................................. 90 (10.2)\
MAP Sensor Bolt
Dakota & Durango ........................................ 25 (2.8)\
Ram Pickup
3.9L, 5.2L & 5.9L ...................................... 25 (2.8)\
8.0L ................................................... 20 (2.3)\
Ram Van & Ram Wagon ..................................... 25 (2.8)\
PCM Bolt .................................................. 35 (4.0)\
TP Sensor Bolt ............................................ 60 (6.8)\

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(
1) - SAE 10W-30 engine oil is preferred. Use only API approved 

oil with Starburst Symbol. 

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FLUID CAPACITIES 

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Item  Condition  Specification (1) 

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Engine Oil  5.9L: Drained, W/New Filter  5 Qts. (4.7L) 


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 8.0L: Drained, W/New Filter  5 Qts. (4.7L) 


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 5.9L: Drained  4.5 Qts. (4.2L) 

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Engine  5.9L: Drained  20 Qts. (19L) 

Coolant 
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 8.0L: Drained  24 Qts. (22.7L) 

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(
1) - Capacities are recommended or calculated levels. Always use 

dipstick (if available) to measure level. 
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82,500 MILE (132,000 KM)/82 MONTH NORMAL SERVICE
82,500 MILE (132,000 KM)/82 MONTH NORMAL SERVICE
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VERIFY 

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Last Major Service Was Performed. 

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REPLACE 

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 Oxygen Sensor (5.9L Only) (
1) 

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(
1)  Requires service reminder indicator light. If so equipped, 

these parts are to be replaced at the indicated mileage 

when the service reminder indicator light remains on 

continuosly with the key in the "ON" position, which occurs 

first. 
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84,000 MILE (134,000 KM) SEVERE DUTY SERVICE
84,000 MILE (134,000 KM) SEVERE DUTY SERVICE
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VERIFY 

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Last Major Service Was Performed. 

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INSPECT 

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 Exhaust System 


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 Brake Hoses 


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 Engine Coolant Level, Hoses & Clamps 


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 Engine Air Cleaner & Air Pump Filters 


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 Brake Linings 

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SERVICE 

5.9L
Normal Service .................... 12 ................. 12,000
Severe Service ................... (3) ................... 6000
8.0L
Normal Service .................... 6 .................... 6000
Severe Service ................... ( 3) ................... 3000
PCV Valve (5.9L Only)
Normal Service ..................... 60 ................. 60,000
Severe Service ( 7) ................ ( 3) ................. 30,000
Distributor Cap & Rotor (5.9L Only)
Normal Service ..................... 60 ................. 60,000
Severe Service .................... ( 3) ................. 60,000
Spark Plugs
Normal Service ..................... 30 ................. 30,000
Severe Service .................... ( 3) ................. 30,000
Spark Plug Wires
Normal Service ..................... 60 ................. 60,000
Severe Service .................... ( 3) ................. 60,000
Oxygen Sensor (5.9L Only)
Normal Service ..................... 82 ................. 82,500
Severe Service ..................... ( 3) ................ 82,500
Automatic Transmission Fluid,
Filter & Band Adjustment
Normal Service ..................... 24 ................. 24,000
Severe Service ..................... ( 3) ................ 12,000
Manual Transmission Fluid ............ ( 8) ................... ( 8)
Transfer Case Fluid (4WD)
Normal Service ..................... 36 ................. 36,000
Severe Service ..................... ( 3) ................ 18,000
Front Differential Fluid (4WD) ( 9)
Severe Service ..................... ( 3) ................ 12,000
Rear Differential Fluid ( 9) .......... ( 3) ................ 12,000
Repack Front Wheel Bearings
2WD
Normal Service .................... 24 ................. 24,000
Severe Service .................... ( 3) .................. 9000
4WD
Normal Service .................... 18 ................. 18,000
Severe Service .................... ( 3) .................. 6000
( 1) - Heavy-duty vehicles apply to 2500 and 3500 Federal models with
8.0L engine and all 3500 models with 5.9L gasoline engine.
( 2) - Different interval may be required for normal and severe
service. Severe service is described as long periods of engine
idling, frequent short trip operation of less than 5 miles,
trailer towing, off-highway operation, snow removal operation,
or operating in dusty or excessively hot conditions.
( 3) - Monthly interval is not available from manufacturer.
( 4) - Inspect filter every 12,000 miles and replace as necessary.
Replace at 24,000 miles unless previously replaced during
inspection.
( 5) - Replace coolant at 36,000 miles or 36 months whichever occurs
first. Replace coolant at 36 months regardless of mileage. After
first coolant change, replace coolant every 24 months or 30,000
miles thereafter.
( 6) - If equipped with EGR valve, clean EGR passages when replacing
EGR valve.
( 7) - Inspect and replace as necessary. Replace PCV valve at 60,000
miles.
( 8) - Service interval is not available from manufacturer.
( 9) - Normal service interval is not available from manufacturer.
Manufacturer lists service schedule only under severe service
conditions.

IDLE SPEED & MIXTURE
NOTE: On all except diesel models, idle speed and mixture are
controlled by Powertrain Control Module (PCM). No adjustment
is required.
IDLE SPEED SPECIFICATIONS









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Application RPM
Gasoline Models ................................................ ( 1)
Diesel Models .................................................. ( 2)
( 1) - Idle speed is controlled by Powertrain Control Module PCM) and
idle air control motor. Idle speed is nonadjustable.
( 2) - Idle speed is controlled by PCM. Idle speed is nonadjustable.









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THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED SPECIFICATIONS








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Application RPM
Caravan
2.4L ( 2)
1000 Miles Or Less .................................. ( 3) 500-875
More Than 1000 Miles ................................ ( 3) 550-875
3.0L ( 2)
1000 Miles Or Less .................................. ( 3) 560-910
More Than 1000 Miles ................................ ( 3) 610-910
3.3L & 3.8L ( 2)
1000 Miles Or Less .................................. ( 3) 525-875
More Than 1000 Miles ................................ ( 3) 575-875
Dakota
2.5L ..................................................... 500-900
3.9L, 5.2L & 5.9L .................................... ( 1) 500-900
Durango ................................................ ( 1) 500-900
Ram Pickup
3.9L, 5.2L & 5.9L (Gasoline) ......................... ( 1) 500-900
8.0L ......................................................... ( 4)
Ram Van & Ram Wagon .................................... ( 1) 500-900
Town & Country ( 2)
1000 Miles Or Less ................................... ( 3) 525-875
More Than 1000 Miles ................................. ( 3) 575-875
Voyager
2.4L ( 2)
1000 Miles Or Less .................................. ( 3) 500-875
More Than 1000 Miles ................................ ( 3) 550-875
3.0L ( 2)
1000 Miles Or Less .................................. ( 3) 560-910
More Than 1000 Miles ................................ ( 3) 610-910
3.3L ( 2)
1000 Miles Or Less .................................. ( 3) 525-875
More Than 1000 Miles ................................ ( 3) 575-875
( 1) - Specification listed with Air Metering Fitting (6714) installed.
( 2) - Specification listed in accordance with vehicle mileage.
( 3) - Specification listed with Air Metering Fitting (6457) installed.
( 4) - Does not apply to this application.









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THROTTLE POSITION SENSOR

THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS








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Throttle Opening Volts
Caravan, Town & Country, & Voyager (1)( 2)
At Idle ................................................. .38-1.20
At Full Throttle ....................................... 3.10-4.40
Dakota & Durango ( 1)( 2)
At Idle .................................................. .26-.90
At Full Throttle .................................. Less Than 4.50
Ram Pickup ( 1)( 2)
3.9L, 5.2L, 5.9L (Gasoline) & 8.0L ( 1)( 2)
At Idle ................................................. .35-.90
At Full Throttle ................................. Less Than 4.50
5.9L (Diesel) ................................................ ( 3)
Ram Van & Ram Wagon ( 1)( 2)
At Idle .................................................. .35-.90
At Full Throttle .................................. Less Than 4.50
( 1) - Measure voltage at center terminal on throttle position sensor
with ignition on.
( 2) - Voltage should increase smoothly when moving throttle from idle
to full throttle.
( 3) - Diesel Accelerator Pedal Position Sensor (APPS) is not
adjustable. Voltage should be less than one volt at idle and
more than 3 volts at full throttle.









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