INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with an adjustment procedure and only need a specification.
CAPACITIES
| Application | Qts. (L) |
|---|
| Crown Victoria, Grand Marquis & Town Car | 18.9 (17.9) |
| Marauder | 18.6 (17.6) |
COOLING SYSTEM CAPACITIES
| Application | Qts. (L) |
|---|
| 4.6L |
| DOHC | 6.0 (5.7) |
| SOHC | 6.8 (5.9) |
| (1) Includes oil filter. |
| Application | Qts. (L) |
|---|
| Crown Victoria (2) |
| Except Police Units | 13.9 (13.1) |
| Police Units | 12.8 (12.1) |
| Grand Marquis (2) | 13.9 (13.1) |
| Town Car (2) | 12.8 (12.1) |
| (1) Mercon and Mercon V (synthetic) automatic transmission fluids are not interchangeable. DO NOT mix Mercon and Mercon V (synthetic) automatic transmission fluid. (2) Use Mercon V (synthetic) automatic transmission fluid only. |
| (1) | Mercon and Mercon V (synthetic) automatic transmission fluids are not interchangeable. DO NOT mix Mercon and Mercon V (synthetic) automatic transmission fluid. |
| (2) | Use Mercon V (synthetic) automatic transmission fluid only. |
TRANSMISSION CAPACITIES (1)
| Application | Pts. (L) |
|---|
| All (1) (2) | 3.75 (1.8) |
| (1) 80W-90 gear lube. (2) Add 4 oz. (12 cc) friction modifier for Traction-Lok axles. |
| (2) | Add 4 oz. (12 cc) friction modifier for Traction-Lok axles. |
SERVICE INTERVALS & SPECIFICATIONS
| Component | Interval - Miles (Normal Schedule) | (1) Interval - Miles (Special Operating Conditions) |
|---|
| Accessory Drive Belt | (2) | (3) |
| Air Filter | 30,000 | (3) |
| Cabin Air Filter | 15,000 | (3) |
| Coolant | (4) (5) | (3) |
| NGV Coalescer/Fuel Filter | (6) | (6) |
| NGV Fuel Tanks | (7) | (7) |
| Fuel Filter | 30,000 | 15,000 |
| Oil & Filter | 5000 | 3000 |
| PCV Valve | 100,000 | (3) |
| Rear Axle Fluid | 150,000 | 100,000 |
| Spark Plugs | 100,000 | 60,000 |
| A/T Fluid | 150,000 | 30,000 |
| (1) Applies to vehicles with extensive idling and/or low-speed driving for long distances. As in heavy commercial use such as delivery, taxi or patrol car. (2) Replace at 150,000 miles if not replaced within last 100,000 miles. (3) If vehicle is driven in dusty conditions or used under special operating conditions, inspect and replace as required. (4) Green engine coolant replaced at 45,000 miles, and then every 30,000 miles thereafter. Orange engine coolant replaced at 150,000 miles. (5) Yellow engine coolant replaced at 5 years or 100,000 miles (which ever comes first). After initial change, replace Yellow coolant every 3 years or 50,000 miles. (6) Every 30,000 miles, drain coalescent fuel filter bowl and replace filter. (7) Fuel tanks for Compressed Natural Gas (CNG) vehicles, should be inspected every 30,000 miles and should be replaced every 15 years. |
| (1) | Applies to vehicles with extensive idling and/or low-speed driving for long distances. As in heavy commercial use such as delivery, taxi or patrol car. |
| (2) | Replace at 150,000 miles if not replaced within last 100,000 miles. |
| (3) | If vehicle is driven in dusty conditions or used under special operating conditions, inspect and replace as required. |
| (4) | Green engine coolant replaced at 45,000 miles, and then every 30,000 miles thereafter. Orange engine coolant replaced at 150,000 miles. |
| (5) | Yellow engine coolant replaced at 5 years or 100,000 miles (which ever comes first). After initial change, replace Yellow coolant every 3 years or 50,000 miles. |
| (6) | Every 30,000 miles, drain coalescent fuel filter bowl and replace filter. |
| (7) | Fuel tanks for Compressed Natural Gas (CNG) vehicles, should be inspected every 30,000 miles and should be replaced every 15 years. |
BELT ADJUSTMENT
All models use automatic tensioner, accessory belt adjustment is not required. Replace belt when automatic tensioner wear indicator mark reaches maximum position. For additional information, see COOLING SYSTEM SPECIFICATIONS & DRIVE BELT ROUTING - CARS article in ENGINE COOLING.
ENGINE COMPRESSION
Warm engine to normal operating temperature. Check compression at cranking speed with throttle wide open and all spark plugs removed. Ensure crankcase is at correct level and oil is of correct viscosity. With compression gauge installed, use remote starter to crank engine.
Crank engine 5 revolutions (minimum) and record highest pressure gauge reading. Repeat procedure for all cylinders using approximately same number of revolutions. Lowest compression reading should not be less than 75 percent of highest compression reading. Cylinder compression readings should not be less than 100 psi (7 kg/cm 2 ).
VALVE CLEARANCE
Note. All models are equipped with hydraulic valve lifters. Valve adjustment is not required if equipped with hydraulic lifters. If valves are noisy or incorrect clearance is suspected, worn components are indicated. Check collapsed valve lifter clearance. See appropriate article in ENGINES.
Spark Plug Specifications (V8)
| Application | Gap - In. (mm) | Torque - Ft. Lbs. (N.m) |
|---|
| Except CNG | .052-.056 (1.32-1.42) | 11 (15) |
| CNG | .042-.046 (1.07-1.17) | 11 (15) |
SPARK PLUG SPECIFICATIONS
| Application | Motorcraft No. |
|---|
| SOHC (Except CNG) | AWSF-32P |
| DOHC | AWSF-32EM |
| CNG | AGSF-22FM1 |
Scheme 1
IGNITION TIMING
Note. On all models with Distributorless Ignition System (DIS), manufacturer does not recommend checking ignition timing, as faulty readings are common and timing is not adjustable.
| Application | Degrees BTDC |
|---|
| All Models | (1) 10 |
| (1) Timing is not adjustable. |
| (1) | Timing is not adjustable. |
FUEL INJECTORS
| Application | (1) Resistance - Ohms |
|---|
| Crown Victoria 4.6L Natural Gas Vehicle (NGV) | 4-6 |
| Marauder | 11.4-12.6 |
| All Others | 13.8-15.2 |
| (1) Resistance values are for a single injector. |
| (1) | Resistance values are for a single injector. |
FUEL PUMP
IDLE SPEED & MIXTURE
Note. Idle mixture is not adjustable. If idle mixture is incorrect, see TEST H: FUEL CONTROL in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article.
THROTTLE POSITION SENSOR
| Throttle Angle Degrees | (1) Volts |
|---|
| Clockwise |
| 17.4 (Idle) | .95 |
| 20 | 1.00 |
| 40 | 1.97 |
| 60 | 2.95 |
| 80 | 3.95 |
| 96.6 (WOT) | 4.65 |
| Counterclockwise |
| 2.8 | .95 |
| 0 | 1.00 |
| 20 | 1.95 |
| 40 | 2.95 |
| 60 | 3.93 |
| 76.8 (WOT) | 4.65 |
| (1) Throttle position may vary by 6 percent. For testing, see TEST DH: THROTTLE POSITION SENSOR in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. |
