Starter - Motorcraft Ford Econoline E350

DESCRIPTION

Note. Unless otherwise specified, references to Pickup include the F350 Super Duty commercial chassis.

The permanent magnet, gear reduction type starter is used on all Ford gasoline engines. An internal planetary gear reduction unit provides increased cranking torque. The starting system consists of a starter, ignition/starter switch, relay, neutral start switch (A/T) or clutch switch (M/T), battery and wiring.

TROUBLE SHOOTING

Note. See TROUBLE SHOOTING - BASIC PROCEDURES article in the GENERAL TROUBLE SHOOTING section.

ON-VEHICLE TESTING

STARTER MOTOR TEST

1. Ensure battery is fully charged and in good condition. Ensure battery cables and connections are in good condition. Measure voltage at starter solenoid battery cable terminal. If voltage is battery voltage, go to step 2). If voltage is less than 12 volts, recheck battery cables and connections. Service as necessary.
2. Connect one lead of remote starter switch to starter solenoid battery cable terminal. Connect other lead to "S" terminal on starter solenoid. (Scheme 1) Operate remote starter switch. If engine does not crank, repair or replace starter. If engine cranks vigorously, starter is okay; go to STARTER RELAY TEST. If cranking is sluggish, go to LOAD TEST.

STARTER RELAY TEST

1. Disconnect terminal "S" of starter relay. (Scheme 1) Connect remote starter switch between terminal "S" and positive battery terminal. Ensure transmission is in Park on A/T models or Neutral on M/T models.
2. Crank engine with remote starter. If engine cranks, relay is okay. Check ignition switch, neutral or clutch switch and circuitry for open or loose connections. If engine does not crank, replace relay.

Scheme 1

LOAD TEST

1. Connect starter load tester and voltmeter to battery terminals. Ensure no current is flowing through the ammeter and carbon pile of tester. Disconnect terminal "S" of starter relay. (Scheme 1)
2. Connect remote starter switch between terminal "S" and positive battery terminal. Ensure transmission is in Park on A/T models, or Neutral on M/T models.
3. Crank engine with ignition off. Note voltmeter reading then stop cranking engine. Turn tester carbon pile rheostat knob to match voltage obtained while cranking. Note ammeter reading. Replace or repair starter if current exceeds specification. See «STARTER SPECIFICATIONS»(/ford/econoline-e350/1985-1999/remont/starter/#starter-motorcraft).

NO-LOAD TEST

1. Mount starter securely in vise. Connect voltmeter to battery terminals. Connect battery, jumper cables and starter load tester to starter. (Scheme 2) Ensure no current is flowing through the ammeter and carbon pile of tester.
2. Note voltmeter reading. Disconnect battery from starter. Turn carbon pile to achieve voltage obtained while starter was operating. Note ammeter reading. Replace or repair starter if current exceeds specification. See «STARTER SPECIFICATIONS»(/ford/econoline-e350/1985-1999/remont/starter/#starter-motorcraft).

Scheme 2

ARMATURE OPEN CIRCUIT TEST

An open armature circuit can sometimes be detected by inspecting the commutator for evidence of burning. If burning is present, replace armature. Check for damage to other related components.

ARMATURE GROUNDED CIRCUIT TEST

Connect ohmmeter leads to the armature and commutator. (Scheme 3) Ohmmeter should indicate no continuity. If continuity exists, replace armature.

Scheme 3

REMOVAL & INSTALLATION

Removal

Disconnect negative battery cable. Raise vehicle. Disconnect battery cable from starter. Disconnect starter solenoid wiring. Remove starter mounting bolts or nuts. Remove starter from vehicle.

Installation

1. Position starter assembly onto flywheel housing. Start bolts. Hold starter against mounting surface, fully inserted into pilot hole. Tighten bolts or nuts to specification.
2. Connect battery cable and solenoid wiring to starter. Tighten to specification. Lower vehicle. Connect negative battery cable. Check starter operation.

OVERHAUL

Note. To assist with overhaul, use exploded view of starter. (Scheme 4)

Scheme 4

STARTER SPECIFICATIONS

STARTER SPECIFICATIONS

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

See also:
• TROUBLE SHOOTING - BASIC PROCEDURES
• COMPUTER RELEARN PROCEDURES
• STARTER SPECIFICATIONS