How is the no spark no start test done?

This test is accomplished using a 12 volt test light and is done while cranking the engine on your 4.9L, 5.0L, or 5.8L Ford pick up (or car or SUV). Reconnect the high tension wire to the ignition coil and the distributor cap, if you haven’t done so.

Why is there no spark on the ignition coil?

So far, you have verified that you do have a bona-fide no spark situation coming directly from the ignition coil because: One: Your Ford’s no start condition is due to a lack of spark (and nothing else). Two: You have eliminated the ignition coil’s high tension wire as bad (TEST 2).

What to do when your engine has no spark?

Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.

How to test the ignition coil in a Ford?

Reconnect the high tension wire to the ignition coil and the distributor cap, if you haven’t done so. Connect the test light’s crocodile type connector to your Ford’s battery positive post. The ignition coil can be connected to its electrical connector or not.

Why does my car have no spark when I start it?

As a result, This occurs after the ignition coil or module gets too hot. Furthermore, it could correct itself after the engine module cools. In some cases, a bad ignition coil will result in the vehicle not starting it all. A Bad Rotor Or Distributor Cap (cracks or carbon tracks that are allowing the spark to short to ground).

What makes a Ford 4.9L engine not start?

Without spark, the engine will crank but not start. Ignition control module (ICM). Depending on the year of your specific Ford, it’ll have a inner-fender mounted ignition control module or a distributor mounted ignition control module.

What makes a Ford no crank no start?

You’ll see that the system consists of a fuse, ignition switch, starter relay, transmission range selector (neutral safety switch on for an automatic transmission) or a start inhibit switch for a manual transmission, and a ground control circuit provided by the PCM. The PCM gets involved here because of the ford passive anti-theft system (PATS).

Why does my ignition coil say no start?

One: Your Ford’s no start condition is due to a lack of spark (and nothing else). Two: You have eliminated the ignition coil’s high tension wire as bad (TEST 2). The next test is to make sure the ignition coil is getting battery power either using a multimeter or a 12 V DC test light.

What kind of ignition module does Ford F350 have?

The illustrations in the diagnostic manual are printer friendly! Applies to: 1992-1993 Ford F150. 1992-1993 Ford F250. 1992-1993 Ford F350. All of the information you need to diagnose a misfire or a no-start problem (caused by the ignition module or the ignition coil).

What causes a Ford F150 to not start?

In this article I’ll show you a very simple, easy and highly accurate way to see if the ignition coil on your 4.9L, 5.0L, 5.8L Ford F150 (or E150, Bronco, Crown Victoria, Grand Marquis, etc) is fried and causing your vehicle to NOT START or not the cause of the problem.

What causes a car to have no spark?

CASE 2: Spark was NOT present in all of the cylinders A number of things can cause this no spark result. So this what I would suggest: Test the ignition coil . Check for spark directly on the ignition coil tower. The distributor cap and rotor can go bad and not deliver the spark that the ignition coil is delivering to them.

What causes no start on a Ford 5.8L?

Go to: No Start 2: Checking Fuel. CASE 2: Spark was NOT present in all of the cylinders A number of things can cause this no spark result. So this what I would suggest:

How is the no spark no start test done?