Ignition System Fault Identification (Sierra)

            0

The transistor ignition system should be checked with a well-charged battery and at a temperature of 0° to -40°C. The instructions below should be followed.

The starter turns the crankshaft, but the engine does not start
Check for high voltage at spark plugs
High voltage is present
Check the engine ignition system
There is no high voltage
Check for high voltage at the distributor terminals
High voltage is present
Check the rotor and distributor cap, as well as the high-voltage wires. Replace damaged components
There is no high voltage
Check for high voltage at the distributor terminals
High voltage is present
Check the rotor and distributor cap, as well as the high-voltage wires. Replace damaged components
There is no high voltage
Check for high voltage at the ignition coil terminals
High voltage is present
Replace the high tension wire between the coil and the distributor
There is no high voltage
Check all electrical connections of the ignition system
Too much voltage drop or temporary short circuit
Clean or replace electrical wire connectors
No damage found
Check for voltage at the +VE terminal of the ignition coil (battery voltage)
The voltage is incorrect
Check the ignition switch, the condition of the battery and its electrical wires
The voltage is correct
Disconnect the two low voltage wires from the ignition coil. Connect a 12V/21W bulb to the connector and turn on the starter
The light blinks when the starter is running
Replace the ignition coil
The light does not light (does not blink)
Disconnect the multi-pin connector from the ignition distributor and measure the resistance between the connector contacts
The resistance is not within the norm
Replace the ignition distributor
The resistance is normal
Connect the multi-pin connector to the ignition distributor; connect the new ignition switch. Turn on the starter. The light connected to the low voltage terminals of the ignition coil should blink
If the light is flashing, then connect the wires to the ignition coil and check if the engine starts correctly


(The full article is on the online resource: «www.fordbook.ru»)






Link to this page in different formats


Visitor comments

No comments yet



Fusion 
Scorpio 1 
Scorpio 2 
Sierra 
We use cookies to ensure the site works smoothly, remembers your settings, and is convenient for you 🍪