Join Date: Apr 2009
Location: Oceanside, NY
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Re: volvo penta md2010 won't start
I have been having a similar problem, have the same type Volvo harness. The engine starts fine at the dock, runs for an hour or two. Then I turn it off and sail for three hours or less and cannot restart. The next day at the dock the engine starts fine again and later in the day (when warm) it will not.
I checked the leads on the key switch, the relays, the harness, all seem good. It appears to be a connection that when it gets hot expands or something and then does not work..it is driving me nuts.
I even had a Volvo factory mechanic out and he said to find the problem would be absurdly expensive, might take hours.
My solution (and its not a great one) was to do two things. We wired a seperate set of wires from the key switch to the starter (kind of paralleling the Volvo setup) and also installed an on off switch that was essentially a jumper from the the battery direct to the starter. I lose my instrumentation but do not have to be towed ignominiously back to the dock.
Still have no answer to the problem, its a Volvo thing.