Why does my car not have a spark?

Why does my car not have a spark?

It stopped running when it wanted to shift, but that had nothing to do with it when I pulled a spark plug wire and no spark. I ran down to Advance and got a new coil and still no spark.

What kind of car has a no spark coil?

Author Topic: No spark! Tried a new coil, still no spark (Read 50916 times) No spark! Tried a new coil, still no spark I have an 84 Sierra with a small block 400 in it with HEI. It stopped running when it wanted to shift, but that had nothing to do with it when I pulled a spark plug wire and no spark.

What was the name of the 1993 GMC pick up?

1993 GMC C1500, C2500, C3500 Pick Up. 1993 GMC K1500, K2500, K3500 Pick Up. All of the information you need to diagnose a no-start problem caused by the ignition module, or the ignition coil, or the distributor pickup coil.

What kind of ignition system does a GMC Suburban have?

The typical ignition system circuit diagram for the 1992-1995 4.3L, 5.0L, and 5.7L 1500, 2500, 3500 Pick Up and Suburban can be found here: Ignition System Circuit Diagram (1992-1995 Chevy/GMC Pick Up And SUV).

We did this to make sure the timing belt was not broke. Its like the ignition coil is not collapsing to send the spark energy to the spark plugs.

Which is the best test for no start, no spark condition?

KOEC test is best used for diagnosing no start, no spark condition. Black=known good ground. KOEO, primary ignition voltage must be present to continue with test. Crank Engine and check for ICM switching at ignition coil while cranking. As ICM switches, primary voltage spikes can be seen. 25k ohms total resistance per wire.

Can a cranks but not start test fail?

Your helper should stay outside the vehicle and away from the ignition switch before and after you set up the test. TIP 3: The ignition coil is not the only thing that can cause a cranks but does not start condition, when it fails. Other components can fail and provoke a no start.

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.