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Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 14490
Experience:  Degree in Marine Technology. Gas and diesel marine mechanic.
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I HAVE A THUNDERBOLT 4 IGNITION. NOT GETTING POWER COMING

Customer Question

HI I HAVE A THUNDERBOLT 4 IGNITION. NOT GETTING POWER COMING OUT OF THE MODULE WITH THE KEY ON. GOT 12V COMING OUT OF BOTH SIDES OF THE COIL. AND 12V ON PURPLE AND GREY GOING INTO MODULE. CHECK FOR 12V ON RED AND WHITE WIRE PER TROUBLESHOOTING DIAGRAM. GOT NOTHING. REPLACED IGNITION MODULE AND NOTHING CHANGE. NO SPARK.
Submitted: 1 year ago.
Category: Boat
Expert:  Jason replied 1 year ago.

Hello my name is ***** ***** am I speaking with?

Start by disconnecting the gray wire on the ignition coils and re-checking. Does spark come back?

Also,, on your module, those modules are pretty pricey and most folks replace the ignition system as it is cheaper than the module. Did you get a new Mercruiser part, or was it a used part?

Customer: replied 1 year ago.
THANKS I WILL CHECK IT TOMORROW.JUSTIN
Expert:  Jason replied 1 year ago.

Sounds good Justin, let me know what happens.

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