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 correct viscosity. With compression gauge installed, use remote starter to crank engine.
Crank engine 5 revolutions (minimum) and record highest 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 ).
| Application | Compression Ratio |
|---|
| 1.8L | 9.0:1 |
| 1.9L | 9.0:1 |
| 2.0L | 9.0:1 |
| 2.3L | 9.0:1 |
COMPRESSION RATIO SPECIFICATIONS
VALVE CLEARANCE
Note. On 1.8L and 2.0L models, valve clearance is zero and adjustment is not possible. On all other models, hydraulic valve lifters are used and valve adjustment is not required. If incorrect valve clearance is suspected, lifter must be collapsed before clearance can be checked.
| Application | In. (mm) |
|---|
| 1.9L | 0-.177 (0-4.50) |
| 2.3L | .070-.170 (1.80-4.34) |
COLLAPSED VALVE LIFTER CLEARANCE
IGNITION COIL
| Application | Primary (Ohms) | Secondary (Ohms) |
|---|
| 1.8L | 0.8-1.6 | 6000-30,000 |
| 1.9L | (1) | (1) ** |
| 2.0L | 0.6-1.1 | 1150-18,500 |
| 2.3L | 0.8-1.6 | 8000-11,500 |
| (1) Resistance value is not available. For testing, proceed to IGNITION SYSTEMS in appropriate SYSTEM/COMPONENT TESTS article in the ENGINE PERFORMANCE section. Refer to menu following this table. |
| (1) | Resistance value is not available. For testing, proceed to IGNITION SYSTEMS in appropriate SYSTEM/COMPONENT TESTS article in the ENGINE PERFORMANCE section. Refer to menu following this table. |
- Escort & Tracer 1.8L: «SYSTEM/COMPONENT TESTS - EEC (1.8L)»(ref-22924) 1.9L: «SYSTEM/COMPONENT TESTS - EEC-IV (1.9L)»(ref-22911)
- Probe: «SYSTEM/COMPONENT TESTS - EEC-IV (2.0L)»(ref-22925)
- Tempo & Topaz: «SYSTEM/COMPONENT TESTS - EEC-IV (2.3L)»(ref-22926)
HIGH TENSION WIRE RESISTANCE
| Application (1) | Ohms |
|---|
| 1.8L & 2.0L | 4000-7000 Per Foot |
| 1.9L & 2.3L | 7000 Per Foot |
| (1) Distributorless systems are 30,000 ohms total per wire. |
| (1) | Distributorless systems are 30,000 ohms total per wire. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Motorcraft No. |
|---|
| 1.8L | AGSP-32C |
| 1.9L | AGSF-34C |
| 2.0L | AGSP-32C |
| 2.3L | AWSF-42C |
| Application | Gap: In. (mm) | Torque: Ft. Lbs. (N.m) |
|---|
| 1.8L | .043 (1.09) | 17 (23) |
| 1.9L | .054 (1.37) | 15 (20) |
| 2.0L | .039-.043 (0.99-1.09) | 11-17 (15-23) |
| 2.3L | .054 (1.37) | 10 (14) |
SPARK PLUG SPECIFICATIONS
Identifying Firing Order (1.8L). Scheme 1
Scheme 1: Identifying Firing Order (1.8L)
Identifying Firing Order & Timing Marks (1.9L). Scheme 2
Scheme 2: Identifying Firing Order & Timing Marks (1.9L)
Scheme 3
Scheme 3: Spark Plug Wire Routing (1.9L)
Identifying Firing Order (2.0L). Scheme 4
Scheme 4: Identifying Firing Order (2.0L)
Identifying Firing Order & Timing Marks (2.3L). Scheme 5
Scheme 5: Identifying Firing Order & Timing Marks (2.3L)
IGNITION TIMING
| Application | Degrees BTDC @ Idle |
|---|
| 1.8L | (1) 9-11 |
| 1.9L | (2) (3) 10 |
| 2.0L | (2) 9-11 |
| 2.3L | (2) 10 |
| (1) With STI terminal grounded. (2) Disconnect single in-line SPOUT connector or remove shorting bar from double wire SPOUT connector. (3) Timing not adjustable. |
| (1) | With STI terminal grounded. |
| (2) | Disconnect single in-line SPOUT connector or remove shorting bar from double wire SPOUT connector. |
| (3) | Timing not adjustable. |
FUEL PUMP
Note. For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS article.
IDLE SPEED & MIXTURE
Note. Idle mixture is not adjustable. If idle mixture is incorrect, see appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section. Refer to the following menu
- Escort & Tracer 1.8L: «TESTS W/CODES - EEC 1.8L»(ref-22878) 1.9L: «TESTS W/CODES - EEC-IV (1.9L)»(ref-22879)
- Probe: «TESTS W/CODES - EEC-IV (2.0L)»(ref-22880)
- Tempo & Topaz: «TESTS W/CODES - EEC-IV (2.3L)»(ref-22881)
| Model | RPM |
|---|
| 1.8L | (1) 700-800 |
| 1.9L | (2) 730-830 |
| 2.0L | (2) 650-750 |
| 2.3L | (3) ** |
| (1) With STI terminal of diagnostic connector grounded. (2) Idle speed is not adjustable. (3) Information is not available. |
| (1) | With STI terminal of diagnostic connector grounded. |
| (2) | Idle speed is not adjustable. |
| (3) | Information is not available. |
IDLE SPEED SPECIFICATIONS
THROTTLE POSITION (TP) SENSOR
| Throttle Position | (1) Volts | (1) Ohms |
|---|
| Closed | 0.5 | 400 |
| 1/4 Open | 1.3 | 600 |
| 1/2 Open | 2.2 | 1600 |
| 3/4 Open | 2.9 | 2200 |
| Full Open | 3.7 | 3000 |
| (1) Values may vary by 15 percent. |
| (1) | Values may vary by 15 percent. |
| Throttle Angle | (1) Volts |
|---|
| 0° | .50 |
| 10° | .97 |
| 20° | 1.44 |
| 30° | 1.90 |
| 40° | 2.37 |
| 50° | 2.84 |
| 60° | 3.31 |
| 70° | 3.78 |
| 80° | 4.24 |
| (1) Values may vary by 15 percent. |
| (1) | Values may vary by 15 percent. |
