NOTE: Idle mixture adjustment is not possible on TBI models.
COLD (FAST) IDLE RPM
NOTE: Fast idle is not adjustable on TBI models.
SERVICING
EMISSION CONTROL
See EMISSIONS section.
SPECIFICATIONS
IGNITION
Distributor
All models are equipped with Renix solid state ignition.
IGNITION COIL RESISTANCE - OHMS @ 75
F (24C) \
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Application Primary Secondary
2.5L ........................ .4-.8 .................... 2500-4000
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FUEL SYSTEM
FUEL INJECTION \
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Application Model
2.5L ..................................................... Renix TBI
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Fuel Pump
The 2.5L engine with TBI uses an electric fuel pump located
in the tank.
FUEL PUMP SPECIFICATIONS
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Application Pressure: psi (kg/cm) Volume: Pts. (L)
2.5L (TBI) .............. 14.5 (1.0) ......................... N\
/A
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BATTERY
BATTERY SPECIFICATIONS \
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Application Cold Cranking Reserve Capacity
** ( 1) Amps Minutes
Standard ..................... 421 ............................ 75
Optional ..................... 452 ............................ 81
( 1) - At 0
F (-18C). \
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STARTER
inlet line or filter disconnected at carburetor. Disconnect fuel
return line at fuel filter and plug nipple on filter. Make all tests
at idle speed. See FUEL PUMP SPECIFICATIONS TABLE .
FUEL PUMP SPECIFICATIONS TABLE
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Application Pressure Volume
** psi (kg/cm) ( 1) Pts. (L)
4.0L .................... ( 2) 31 (2.1) ............ 1.0 (.47)
4.0L .................... ( 3) 39 (2.6) ............ 1.0 (.47)
4.2L .................. 4.0-5.0 (.28-.35) ......... 1.0 (.47)
( 1) - Volume per 30 seconds.
( 2) - With the vacuum hose connected to the pressure regulator.
( 3) - With the vacuum hose removed from the pressure regulator.
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ADJUSTMENTS
VALVE ARRANGEMENT
* E-I-I-E-I-E-E-I-E-I-I-E (Front-to-rear).
VALVE CLEARANCE
All engines are equipped with hydraulic lifters. Valve
clearance is not adjustable.
IGNITION COIL WIRE
Remove ignition coil wire from coil and distributor cap.
Check terminals for corrosion and clean (if necessary). Check coil
wire resistance. Replace wire if resistance is excessive.
HIGH TENSION WIRE RESISTANCE (OHMS) TABLE
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Wire Length Minimum Maximum
0-15" .................. 3000 ................... 10,000
15-25" ................. 4000 ................... 15,000
25-35" ................. 6000 ................... 20,000
Over 35" ............... 8000 ................... 25,000
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DISTRIBUTOR
4.0L
Information not available from manufacturer.
4.2L
All models are equipped with Motorcraft Solid State Ignition
(SSI) systems. No adjustments are required.
