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power_line

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Posts: 8
Reply with quote  #1 
On three different occasions, my 08 115 etec would not start, I would turn the key and nothing, not sure why and it has been intermittent. One time it just started working again after wiggling some wires around, but I dont recall exactly where we did that. The second time I was stranded on the water (big lake and in the wind of course), and I tore the electric apart, tested wiring including the start wire from the front to the solenoid, and it tested ok. I had a spare ignition switch which I tried and could not get it to work. I finally brought it to a mechanic and he found that the main fuse on the motor was blown, I did not know it was there. replaced it and it worked for a while until my last outing and after driving 6 hrs to my lake, backed it in and again did not start. Again tested some things and eventually it started working but I dont know what I did or where. After the second issue the mechanic recommended replacing my wiring harness, and after the 3rd issue I just did that, and have not tried it yet. I also replaced the solenoid just to eliminate a possible culprit. My question is has anyone else had this issue and when you hit the key should the solenoid click like on tractors? Mine did not. I am comfortable testing things until I get to the computer, then I am not sure.
PhilH12

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Posts: 3,491
Reply with quote  #2 
On an 11 year old engine, it surely does sound like electrical wiring "going south".  Repeated vibrations and old, cracked and brittle insulation will do that.

If the fuse is now OK, and the whole wiring harness replaced, all connections including all Grounds verified as clean and tight - you should get "something" when you turn the key.  Battery connections Cleaned, and battery fully charged?

Phil

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20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
power_line

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Posts: 8
Reply with quote  #3 
Yes, all connections on the boat look to be in great condition, I am a lineman so I understand the importance of good clean connections, I am not very knowledgeable when it comes to marine engine wiring. Glad to hear that I may be on the right path, I appreciate your reply.
williamp7308

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Posts: 91
Reply with quote  #4 
hi i had the same problem it was the starter solenoid
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william phelps
jimh

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Posts: 6,382
Reply with quote  #5 

For a list of places to look for problems in the engine starting circuit, read my article on that topic at

ELECTRIC STARTING CIRCUITS
http://continuouswave.com/whaler/reference/electricStart.html

The article lists over 50 components to check.

I had a similar problem with intermittent starting on my 1992 Evinrude 225 V6 engine. I also replaced the solenoid, although the original solenoid tested as good. After replacement, I disassembled the original solenoid and made a close visual inspection. I could not find a defect. To this day, I cannot say with any certainty that the original solenoid was the cause. But after checking many connections and replacing the solenoid (that cost only $25 back then) the engine never showed any repeat of the intermittent starting. 

I have over 40-years experience in diagnosis and repair of low-voltage DC control circuits.

In the E-TEC engine there is on difference from the usual control of the solenoid. In some models--perhaps all model, but I cannot say for certain--the starting circuit from the ignition key switch is routed through the EMM. I believe the purpose for this is to create a slight delay before the engine starts from the time the key is moved to START. The purpose of the delay may be to sense the atmospheric pressure or some other environmental parameter, and to allow the EMM to branch to the optimum starting algorithm for the fuel-air mixture. 

If the EMM has a defect, it could affect engine starting. Factory-trained technicians may be able to offer more details.


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power_line

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Posts: 8
Reply with quote  #6 
Thus is excellent information, it's good to hear that I may be on the right track, now I just need to get the boat wet and try it out. Thank you all so much for the help
jimh

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Posts: 6,382
Reply with quote  #7 
I don’t know what “track” you are on, but if it is the right track you may be able to isolate the cause of intermittent engine cranking to a single component and replace or repair just that one defect.

With electrical circuits with intermittent discontinuities, locating the precise component or connection or faulty wire can be difficult, tedious, and time consuming, and in some instances you might never narrow the cause to its precise origin.

The remedy may be to replace a few components you suspect may be the cause. Usually in those approaches to a solution I start with the least expensive part first.

I hope you read and study my article. It gives every possible cause and details in particular for the E-TEC.

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