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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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2003 4.3 mercruiser v6 test procedure in distributor

Customer Question

2003 4.3 mercruiser v6 test procedure for sensor in distributor and one for the module
cranks but will not start
Submitted: 2 years ago.
Category: Boat
Expert:  Jason replied 2 years ago.
Hello my name is ***** ***** am I speaking with?
All Mercruisers are cataloged by serial number, can I get that number as that will tell me which ignition system you have.
Customer: replied 2 years ago.
not available
Expert:  Jason replied 2 years ago.
Do you know what you have for an ignition system?
Customer: replied 2 years ago.
Thunderbolt distributor has a electronic pickup inside
Expert:  Jason replied 2 years ago.
Is it thunderbolt 4 or 5? Can you take a picture of it?
Customer: replied 2 years ago.
Expert:  Jason replied 2 years ago.
Got it. There is a troubleshooting flowchart to check this ignition system and not individual component tests. You had asked for procedure to check the module and the ignition sensor. That's really not the way it's troubleshot. It's troubleshot by following the flowchart. So my next question is have you seen the flowchart but confused by any step on it, or do you need the flowchart?

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