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internal88
internal88, Technician
Category: Mazda
Satisfied Customers: 2534
Experience:  Over 10 years of automotive experience and diagnostic is my specialty.
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2000 Mazda millennia no spark

Customer Question

2000 Mazda millennia no spark
Submitted: 1 year ago.
Category: Mazda
Expert:  internal88 replied 1 year ago.

Hello, I'm Brandon - Mazda tech.

The ignition coil is bad therefore it won't fire any spark. You have to replaced the ignition coil.

I recommend using factory Mazda coil from the dealer. Not aftermarket.

Please rate me positive for the prompt service, thank you!

Customer: replied 1 year ago.
It was running rough and I found one plug wire shorting out with hot spark when I pulled it out, put it back and pulled another, it ran rougher , when I put it back on it died and hasn't refired yet
Expert:  internal88 replied 1 year ago.

Which engine do you have 2.3 or the 2.5 ?

Customer: replied 1 year ago.
I have no spark, but had good spark before reattaching the 2nd plug wire
Expert:  internal88 replied 1 year ago.

You might have burnt the coil.

Expert:  internal88 replied 1 year ago.

I would recommend replacing the ignition wires.

Customer: replied 1 year ago.
How do check the coil. You've, just suggested replacing parts. I agree the wires should be replaced becaus of the burnt one , but rather than just replace parts until I replace the right one ,I would rather test the components to figure out which component to replace.
Expert:  internal88 replied 1 year ago.

First replace the wire and re-confirm the car.

Then if still does not spark. Do this:

Check spark output using a timing light. Attach the timing light to each cylinder one at a time. When the problem happens check to see if the timing light cuts out.
Check spark output at the ignition coil. Spark should jump a minimum of a 3/4 inch gap.

Customer: replied 1 year ago.
It is a 2.5 and I put electrical tape over the insulator tube and cleaned all of the plugs. I have checked the coil side plug in for spark and have none. I have 12v from the far block. Is there a condenser or a module to test? I have a digital meter and can test, voltage, resistance and continuity. I can test milliamperes, I just don't know the diagnostic test procedure, nor do I have a diagram
Expert:  internal88 replied 1 year ago.

Take your volt meter put the positive probe in the coil connector touch the metal part and the ground probe on the ground. What is your volts?

Expert:  internal88 replied 1 year ago.

Have someone crank the engine.

Customer: replied 1 year ago.
There is .5 coming out of the coil
Expert:  internal88 replied 1 year ago.

good

Expert:  internal88 replied 1 year ago.

When you crank the engine. It is still .5?

Customer: replied 1 year ago.
Expert:  internal88 replied 1 year ago.

Tomorrow, change out the ignition wires and replaced the coil. The coil is shot, it is too low.

Please rate me positive , thank you.

Customer: replied 1 year ago.
Waiting on the coil
Expert:  internal88 replied 1 year ago.

Ok great, thanks. Keep me posted.