Ford F150 Pickup. Manual — part 1220

Spark Check

Always perform self-diagnostic QUICK TEST to check for ignition-related fault codes, and repair as necessary.
See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article. If no fault
codes are retrieved, check for proper spark at each cylinder, go to TEST JB, step 17) under SYSTEM TESTS in
SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article. If spark is not present, go to
TEST A: NO-START in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article.

IGNITION COIL RESISTANCE

IDLE SPEED & IGNITION TIMING

IDLE MIXTURE ADJUSTMENT

Idle mixture is not adjustable. If idle mixture is incorrect, see TEST H: FUEL CONTROL in SELF-
DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article.

IGNITION TIMING

BASE IGNITION TIMING

4.6L, and Navigator 5.4L 4V use Coil On Plug (COP). COP faults should set a
DTC. For additional COP testing, see TEST JF: INTEGRATED IGNITION COIL ON
PLUG FAILURE in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL &
GASOLINE article.

NOTE:

For circuit identification, see ENGINE PERFORMANCE in appropriate SYSTEM
WIRING DIAGRAMS article in ELECTRICAL.

NOTE:

Resistance values are not provided by manufacturer. For integrated ignition coil
testing, see TEST JE: INTEGRATED IGNITION COIL FAILURE in SELF-
DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article. For integrated
ignition Coil On Plug (COP) testing, see TEST JF: INTEGRATED IGNITION COIL
ON PLUG FAILURE in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL &
GASOLINE article.

NOTE:

Idle speed and ignition timing are not adjustable. If idle speed is incorrect, see
TEST HU: AIR INTAKE SYSTEM and TEST KE: IDLE AIR CONTROL VALVE in
SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article.

NOTE:

On all models with distributorless electronic ignition, manufacturer does not
recommend checking ignition timing, as faulty readings are common and timing
is not adjustable.

Application

Degrees BTDC

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Basic Diagnostic Procedures - Trucks - Except Diesel

THROTTLE POSITION SENSOR ADJUSTMENT

Throttle Position (TP) sensor is not adjustable. If testing is necessary, see TEST DH: THROTTLE
POSITION SENSOR in SELF-DIAGNOSTICS - EEC-V - CNG, FLEX-FUEL & GASOLINE article.

SUMMARY

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to SELF-
DIAGNOSTICS in appropriate SELF DIAGNOSTICS - EEC-V article. If no trouble codes are found in self-
diagnostics, proceed to appropriate TROUBLE SHOOTING - NO CODES article for diagnosis by symptom
(i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.

All Models

(1)

8-12

(1)

Timing is not adjustable.

2003 Ford Pickup F150

2003 ENGINE PERFORMANCE Basic Diagnostic Procedures - Trucks - Except Diesel

EMISSION CONTROL APPLICATIONS

Emission Applications - Ford Motor Co. - Domestic Trucks (1966-2003)

EMISSION APPLICATIONS

1966-75 FORD MOTOR CO. - DOMESTIC TRUCKS

Year, Engine & Fuel System

Emission Control Systems & Devices

1966-67

All Engines (Carb.)

PCV,

(2)

AIS

1968

170" 6-Cyl. Carb.

(3)

PCV, ACL,

(4)

AIS,

(5)

IMCO

240" 6-Cyl. Carb.

(3)

PCV, ACL,

(4)

AIS,

(5)

IMCO

289" V8 Carb.

(3)

PCV, ACL,

(4)

AIS,

(5)

IMCO

300" 6-Cyl. Carb.

(3)

PCV, ACL,

(4)

AIS,

(5)

IMCO

360: & 390" V8 Carb.

(3)

PCV, ACL,

(2)

AIS,

(5)

IMCO

1969

170" 6-Cyl. Carb.

(3)

PCV, ACL,

IMCO

240" 6-Cyl. Carb.

(3)

PCV, ACL,

IMCO

300" 6-Cyl. Carb.

(3)

PCV,

IMCO

302" V8 Carb.

(3)

PCV, ACL,

IMCO

360" V8 Carb.

(3)

PCV,

IMCO

390" V8 Carb.

(3)

PCV,

IMCO

1970-71

All Engines (Carb.)

(3)

PCV, ACL,

(6)

EVAP,

EVAP-VC, IMCO

1972

170", 240" & 300" 6-Cyl. Carb.

PCV, ACL,

(7)

EVAP,

EVAP-VC, IMCO

302", 360" & 390" V8 Carb.

2003 Ford Pickup F150

EMISSION CONTROL APPLICATIONS Emission Applications - Ford Motor Co. - Domestic Trucks (1966-2003)

2003 Ford Pickup F150

EMISSION CONTROL APPLICATIONS Emission Applications - Ford Motor Co. - Domestic Trucks (1966-2003)

PCV, ACL,

(7)

EVAP,

1973 Light Duty Emissions (6000 GVWR Or Less)

200" 6-Cyl. Carb.

(8)

PCV, ACL, EVAP,

EVAP-VC, IMCO

240" 6-Cyl. Carb.

PCV, ACL, EVAP,

EVAP-VC, IMCO

300" 6-Cyl. Carb.

PCV, ACL, EVAP,

(9)

EGR,

EVAP-VC, IMCO

302" & 360" V8 Carb.

PCV, ACL, EVAP,

(9)

EGR,

EVAP-VC, IMCO

390" & 460" V8 Carb.

PCV, ACL, EVAP,

(9)

EGR,

EVAP-VC, IMCO

1973 Heavy Duty Emissions (6001 GVWR Or More)

(1)

330", 361", 391", 401", 477", & 534" V8
Carb.

PCV, ACL,

(2)(10)

EVAP

1974 Light Duty Emissions (6000 GVWR Or Less)

200" 6-Cyl. Carb.

PCV, ACL,

(10)

EVAP

240" 6-Cyl. Carb.

PCV, ACL,

(10)

EVAP,

(2)

EGR,

(2)(11)

SPK

300" 6-Cyl. Carb.

PCV, ACL,

(10)

EVAP,

(2)

EGR,

(2)(11)

SPK

302" V8 Carb.

PCV, ACL,

(10)

EVAP,

(13)

EGR,

(2)(11)

SPK, AIS

360", 390" & 460" V8 Carb.

PCV, ACL,

(10)

EVAP, EGR,

(2)(11)

SPK, AIS

1974 Heavy Duty Emissions (6001 GVWR Or More)

(1)

302" V8 Carb.

PCV, ACL,

(6)(10)

EVAP, EGR, EFE

330", 361", 401", 477" & 534" V8 Carb.

PCV

360" V8 Carb.

PCV, ACL,

(10)

EVAP,

(2)

EGR,

(2)(11)

SPK

390" V8 Carb.

PCV, ACL,

(2)(7)(10)

EVAP,

(2)

EGR,

(2)(11)

SPK

460" V8 Carb.

PCV, ACL,

(2)

EGR,

(2)(11)

SPK,

(12)

CTAVS

1975 Light Duty Emissions (6000 GVWR Or Less)

300" 6-Cyl. Carb.

PCV, ACL,

(10)

EVAP,

(2)(13)

OC,

(2)(13)

FR, EGR,

AIS

302" V8 Carb.

PCV, ACL, EVAP,

(2)

OC,

(2)

FR,

(13)

EGR, AIS,

EFE,

EVAP-VC, EFE-HCV

(1)

For emission applications on gasoline-powered motor homes 8501 GVWR or more and built on a
motor home chassis, see FORD MOTOR CO. - CLASS "A" MOTOR HOMES.

(2)

Some models.

(3)

Heavy duty models (6001 GVWR or more) have PCV only.

2003 Ford Pickup F150

EMISSION CONTROL APPLICATIONS Emission Applications - Ford Motor Co. - Domestic Trucks (1966-2003)