No Start Condition

[jwhopson]

OK team I have been out on my buddies Supra this year 10+ times and decided to get my 2005 SAN out. I winterized it, put the plugs back in but when I push the start button after entering the code all I hear is the relay click. The batteries are Kirklands and are only two years old. I have two batteries and a perko switch, I generally put the switch in the all position and start the boat. I have never had any issues with the boat not at least cranking over but does anyone have any other advice? The things I have tried are:
-making sure it is in neutral - wiggling it back/forth
-the little plastic key that holds the button in, in case you get thrown out of boat - that does reset the electronics when removed so I believe that is working
-stereo and all other buttons on the touchpad work perfectly
-when power is on I hear the fuel pump kick in and also the perfect pass does its reset
-I have also added another battery just in case but the gauge itself shows just a smidge under 12v

When I push the start button - a small click in the relay - I replaced the fuel pump relay --- there are 3 of them in a bundle -- going to be looking to see if one of them is the starter relay (unless you know)?

Any other suggestions?

[functionoverfashion]

It just sounds like it doesn't have enough power to turn the starter. Are these batteries all fully charged? Have you tried a known good power source, like a jump start from another vehicle or a jumper pack?

If you have a voltmeter, see what the batteries are at right at the batteries directly. The gauge is a good reference, but not very precise. They should be ~12.5V at rest.

[jwhopson]

I checked both batteries and showing 12.4v -- at that voltage they should at least attempt to turn the starter unless it is frozen (which seems strange) - although I haven't started it since last year. I was going to examine the relay - or where the relay's plug in to make sure there is a good contact. I even tried jumping from another battery just to make sure and it didn't even try to turn over then either. Will let you know.

[wakejunky]

I would pull the starter, I don't think it would be that hard to access. Do a bench test on it, you might find the relay isn't working.

[ag4ever]

That 3 relay pack is for 1 fuel pump, 2 ecm, 3 starter solenoid (not necessarily in that order).

I second the thought of low voltage. Your battery can put out 12v + while static, but under heavy load you could have a dead cell that won’t allow the boat to start. Try just bank 1 if it won’t start then try bank 2. If you remove the bad battery from the circuit it may start.

[DealsGapCobra]

I’m thing the same as ag4ever. I would put a volt meter across the batteries when you try to crank and see how much it drops. Not sure if you can get to the starter but taking the voltage there, on the heavy wire, would be best.

A recent experience that might help. My new son-in-laws truck would just click. All accessories worked and testing the battery at the terminals showed a strong 12v with or without cranking. When I checked the voltage on the cables, just after the junction, it showed 12v static and 3v under load. The connector was corroded causing the drop. As you have two batteries, I doubt that those are the problem (both would have to be bad) but it is possible the junction on your starter is corroded causing the same issue, so test that.


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