The ignition not operate - Cars & Trucks

The electrical part or the key lock cylinder part ?
Ignition Key Cannot Be Removed from the Ignition Lock Cylinder
Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?
Go to Step 2
Go to Steering Wheel and Column Description and Operation

2

Verify the key cannot be removed from the ignition lock cylinder.
Is the key stuck in the lock cylinder?
Go to Step 3
System OK

3

Is the vehicle equipped with a manual transmission?
Go to Step 6
Go to Step 4

4

Turn the ignition key to the OFF position.
Can the key be turned to the OFF position and be removed?
Go to Step 6
Go to Step 5

5

Verify the adjustment of the automatic transmission cable. Refer to Shift Control Linkage Adjustment in Automatic Transmission - 5L40-E/5L50-E.
System OK
Go to Step 6
Ignition Can/Cannot Be Turned Off with Transmission in Any Gear
Operate the system.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections
Go to Step 2

2

1. Push the ignition lock cylinder control actuator release button which is on the underside of the ignition key cylinder.
2. Turn the key to the OFF position and remove the key.

Were you able to turn the key to the OFF position and remove the key?
Go to Step 3
Go to Lock System Does Not Lock

3

1. Turn OFF the ignition.
2. Disconnect the ignition lock cylinder control actuator.
3. Turn ON the ignition, with the engine OFF.
4. Connect a test lamp between the battery positive voltage circuit and the ignition key/shifter interlock switch supply voltage circuit of the ignition lock cylinder control actuator with a test lamp.

Does the test lamp illuminate?
Go to Step 8
Go to Step 4

If you are referring to the factory immobilizer, there is no resetting to be done.

The Sentry Key Immobilizer System (SKIS ) is designed to prevent unauthorized vehicle operation. The system consists of a Sentry Key Immobilizer Module (SKIM ), ignition key(S) equipped with a transponder chip and PCM. When the ignition switch is turned on, the SKIM interrogates the ignition key. If the ignition key is Valid or Invalid, the SKIM sends a PCI Bus message to the PCM indicating ignition key status. Upon receiving this message the PCM will terminate engine operation, or allow the engine to continue to operate.


For all faults except transponder faults and VTSS LED remains on steady. In the event of a transponder fault the LED flashes at a rate of 1 Hz (once per second). If a fault is present the LED will remain on or flashing for the complete ignition cycle. If a fault is stored in SKIM memory which prevents the system from operating properly, the PCM will allow the engine to start and run (for 2 seconds ) up to six times. After the sixth attempt, the PCM disables the starter relay until the fault is corrected.

The ignition switch is usually mounted to the steering column and is operated by a linkage rod.
NOTE On column-mounted ignition switches, don't confuse the switch with the lock cylinder and keys. The ignition switch is not normally visible. On some vehicles, the steering column support has to be removed and the column lowered to find the ignition switch. On others, the switch is accessible under the dash.
The ignition switch is operated by the key switch. Courtesy of Ford Motor Company. To replace the switch:

• Remove the ignition switch wiring harness.
• Unbolt it from its position.
• Bolt the new switch into position.
• Attach the witing harness.

replace the ignition switch
The ignition switch is usually mounted to the steering column and is operated by a linkage rod.
NOTE On column-mounted ignition switches, don't confuse the switch with the lock cylinder and keys. The ignition switch is not normally visible. On some vehicles, the steering column support has to be removed and the column lowered to find the ignition switch. On others, the switch is accessible under the dash.
The ignition switch is operated by the key switch. Courtesy of Ford Motor Company. To replace the switch:

• Remove the ignition switch wiring harness.
• Unbolt it from its position.
• Bolt the new switch into position.
• Attach the witing harness.

The ignition switch is usually mounted to the steering column and is operated by a linkage rod.

NOTE On column-mounted ignition switches, don't confuse the switch with the lock cylinder and keys. The ignition switch is not normally visible. On some vehicles, the steering column support has to be removed and the column lowered to find the ignition switch. On others, the switch is accessible under the dash.



The ignition switch is operated by the key switch. Courtesy of Ford Motor Company. To replace the switch:

• Remove the ignition switch wiring harness.
• Unbolt it from its position.
• Bolt the new switch into position.
• Attach the witing harness.

Its possible that this video can helped (for Explorer)...


Good luck.

do you carry a lot of trinkets to weight it down enough to cause it to retract into the off position otherwise i am thinking the ignition needs replacement due to wear and everyday use parts do wear out

The ignition switch is usually mounted to the steering column and is operated by a linkage rod.
NOTE On column-mounted ignition switches, don't confuse the switch with the lock cylinder and keys. The ignition switch is not normally visible. On some vehicles, the steering column support has to be removed and the column lowered to find the ignition switch. On others, the switch is accessible under the dash.
The ignition switch is operated by the key switch. Courtesy of Ford Motor Company. To replace the switch:

• Remove the ignition switch wiring harness.
• Unbolt it from its position.
• Bolt the new switch into position.
• Attach the witing harness.

303-07A: Engine Ignition — 3.0L (4V) 2001 Lincoln LS Workshop Manual DESCRIPTION AND OPERATION Engine Ignition The electronic ignition (EI) system is a coil-on-plug (COP) ignition system.
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SECTION 303-07B: Engine Ignition — 3.9L 2001 Lincoln LS Workshop Manual
DESCRIPTION AND OPERATION Engine Ignition The electronic ignition (EI) system is a coil-on-plug (COP) ignition system
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SECTION 303-07B: Engine Ignition — 3.9L 2001 Lincoln LS Workshop Manual
REMOVAL AND INSTALLATION Ignition Coil Removal

1. Remove the air cleaner outlet tube. For additional information, refer to Section 303-12 .

1. Remove the bolts and the ignition coil cover.

1. Disconnect the electrical connector from each ignition coil.

1. Remove the ignition coils.
   1. Remove the bolts.
   1. Remove the ignition coils.

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SECTION 303-07A: Engine Ignition — 3.0L (4V) 2001 Lincoln LS Workshop Manual
REMOVAL AND INSTALLATION Ignition Coil Removal

1. Remove the engine appearance cover.

1. To access the RH bank ignition coils, remove the upper intake manifold. For additional information, refer to Section 303-01A .

1. Disconnect the electrical connector from the ignition coils.

1. Remove the bolts.

1. Remove the ignition coils.

please rate as fixed if this helps.

If you can't turn the key all the way to start, you need either a lock cylinder or an ignition switch...maybe both.

Rough idle or stalling. Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are pre-programmed in the memory of the engine control module (ECM). The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled. Check for any fault at: Spark plugs faulty Replace plugs Ignition wiring faulty Replace wiring Ignition coil faulty Replace ignition coil High tension cord faulty Replace high tension cord