Answers.com > Wiki Answers > Categories > Cars & Vehicles > Auto Parts and Repairs > Car Electronics and Lights > Starters and Ignition Systems > Spark Plugs and Wires > How do you test for spark at the spark plugs?

How do you test for spark at the spark plugs?

In: Spark Plugs and Wires [Edit categories]

Answer:

Use a timing light & see if it flashes. Current through the wire is what flashes the light. Hold the boot with something insulated with terminal near the plug & will jump across the gap while someone cranks engine.

First answer by Theprismgroup. Last edit by Theprismgroup. Contributor trust: 752 [recommend contributor ]. Question popularity: 2 [recommend question].

[report abuse]

Can you answer these Spark Plugs and Wires questions?

	What is a cross reference champion RJ2YXLE plug?	Answer it!
	What spark plug fits your 7 hp Briggs?	Answer it!
	How much spark plugs cost?	Answer it!
	What Spark Plug will Cross reference with Champion H11?	Answer it!

Relevant answers:

How do you test spark plug wires?
Spark plug wires can go bad in several ways. They can develop shorts, or they can just build up resistance. To test for shorts, go out at night and open your hood and let your engine run. If you see...
Can you Test a Spark Plug by just unscrewing it and watching for a spark?
yes plug it into a high tension lead and make sure it is close enough to metal on the engine to earth don't hold the plug itself you will get a shock of around 60,000 volts you should see a nice blue...
Why is it there is no spark in the spark plug leads?
If you know that there is spark at the distributor cap then I would think it would be bad spark plug leads.
Why would spark plugs not spark?
To answer this question it would be helpful to have more information for example if your vehicle is older with high miles a worn out distributer can cause this problem
Why don't I Have no spark at the spark plug?
Faulty coil, or coil pack (depending on the vehicle). If your vehicle is quite old it might have a mechanical distributor (looks like a miniature milking machine with plug wires coming out of the...