2005 150 VMAX Intermittent Starting - Electrical-Related

[Bigeasy08]

Hey guys,

I recently started having some minor misfires at idle with my ‘05 150 VMAX. Last time I went out, the boat started fine and ran fine for about 2 hr. I stopped at a spot to fish and when I went to start the motor, nothing happened and it did not even spin over. I also noticed that the trim on the shifter would not work and the gas gauges didn’t work. All other accessories including the other trim switches worked fine. After about 20min, I tried again and it cranked right up. This happened twice while out there.

I also noticed that whenever it would start to misfire, my trim on the shifter and gas gauges would not work as well. Not sure where a relay would be located or what to be looking for so any help is greatly appreciated. It is definitely something power/wiring related to the motor. I just was not sure if it was a starter solenoid because of the trim and gauges not working. Battery is 6mo old and powers everything else fine. Kill switch works fine as well.

Tanks in advance!

Mark

[Tx Champ]

Start with your battery connections, make sure everything is clean (free from tarnish & corrosion) and tight, including crimps. Also check the positive and negative cables at the block and starter relay. After that, my next suspect would probably be the key switch.

[Bigeasy08]

I went through all the connections and everything looks fine. I just recently went through all of this and added fuse blocks to clean up and provide more consistent power. Now that you mention it, I believe the ignition switch would be the most likely culprit based on the symptoms. I’ll check that out, thanks for the lead.