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Engine alarm going off on 2009 Merc 150 EFI
#11750158
07/30/16 06:45 PM
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Joined: Nov 2007
Posts: 37
burghman
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2007
Posts: 37 |
My alarm intermittently goes off when I'm on the lake. It has happened when I've been running 3/4 throttle but it also has happened when going slow in a no wake zone. The trim is low so I don't think that is the problem. The water pump appears to be working as well since it's always spitting water. I'm looking for a reputable place around Denton County to check it out Thanks.
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11750200
07/30/16 07:34 PM
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Joined: Mar 2015
Posts: 1,192
Anchorman
Extreme Angler
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Extreme Angler
Joined: Mar 2015
Posts: 1,192 |
Some of the slightly older mercs were bad about the oil reservoir caps cracking. If my memory is correct it's the small one on the front of the engine. Check that. That's a cheap easy fix it that is the problem. I'm not 100% sure which res cap it is so better check both of them. I just remember a cracked oil reservoir cap causing that symptom on many mercs. Good luck
Last edited by Anchorman; 07/30/16 07:35 PM.
If it ain't yours don't mess with it! Need a friendly place to talk hunting? www.talkhunting.com
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11751202
07/31/16 01:54 PM
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Joined: Dec 2014
Posts: 1,665
Muzzlebrake
Extreme Angler
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Extreme Angler
Joined: Dec 2014
Posts: 1,665 |
Is it beeps or a steady squeal?
From Genesis: "And God promised men that good and obedient wives would be found in all corners of the earth."
Then He made the earth round...and He laughed and laughed and laughed!
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11751678
07/31/16 07:47 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Oil level sensor in the motor mounted oil reservoir. Screen may need cleaned in the boat mounted main oil tank. 4 beeps can be water in the fuel.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: Anchorman]
#11751870
07/31/16 09:35 PM
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Joined: Jan 2011
Posts: 515
Dude Lebowski
Pro Angler
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Pro Angler
Joined: Jan 2011
Posts: 515 |
Some of the slightly older mercs were bad about the oil reservoir caps cracking. If my memory is correct it's the small one on the front of the engine. Check that. That's a cheap easy fix it that is the problem. I'm not 100% sure which res cap it is so better check both of them. I just remember a cracked oil reservoir cap causing that symptom on many mercs. Good luck It is usually the oil reservoir on the outboard. I also had an alarm module go bad on a 150 EFI before. It was a constant alarm every time you turned the key on. It started out intermittently.
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11756399
08/03/16 01:51 PM
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Joined: Jul 2011
Posts: 377
buggsboy
Angler
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Angler
Joined: Jul 2011
Posts: 377 |
I have the same model motor. In my case it was 4 beeps every few minutes. It was a problem with the oil level sensor in the oil reservoir under the engine cowling.
PB. 10 lb 12 oz
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11756409
08/03/16 01:57 PM
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Joined: Mar 2015
Posts: 1,192
Anchorman
Extreme Angler
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Extreme Angler
Joined: Mar 2015
Posts: 1,192 |
Yep that is what I was thinking. The cap has the oil level sensor built in to it. Easy to replace. Hopefully that is all it is.
If it ain't yours don't mess with it! Need a friendly place to talk hunting? www.talkhunting.com
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11773264
08/12/16 03:32 PM
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Joined: Nov 2007
Posts: 37
burghman
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2007
Posts: 37 |
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11773619
08/12/16 06:48 PM
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Joined: Jul 2011
Posts: 377
buggsboy
Angler
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Angler
Joined: Jul 2011
Posts: 377 |
I wouldn't run it again with that steady squeal. I believe that is a more serious alarm. Identify problem before running again.
PB. 10 lb 12 oz
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11774715
08/13/16 02:40 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Solid tone is over heat on 2 strokes
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11774754
08/13/16 03:10 PM
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Joined: Nov 2007
Posts: 37
burghman
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2007
Posts: 37 |
Any recommendations on where to take it for a once over in/around Denton County?
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11774859
08/13/16 04:51 PM
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Joined: Feb 2006
Posts: 3,765
bronco71
TFF Team Angler
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TFF Team Angler
Joined: Feb 2006
Posts: 3,765 |
possibly t-stats or poppet valve?
1987 Nitro MX185/Mercury Black Max 150 1999 Triton TX21/225 Mercury Optimax
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11776288
08/14/16 03:59 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Certified shop just installed this last week. Told customer he had other problems. I decided to just check it.
Last edited by gary purdy; 08/14/16 04:02 PM.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11776480
08/14/16 06:42 PM
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Joined: Feb 2006
Posts: 3,765
bronco71
TFF Team Angler
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TFF Team Angler
Joined: Feb 2006
Posts: 3,765 |
Wow, never seen one turned both ways before! Do you think they turned it the wrong way when installing it?
1987 Nitro MX185/Mercury Black Max 150 1999 Triton TX21/225 Mercury Optimax
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Re: Engine alarm going off on 2009 Merc 150 EFI
[Re: burghman]
#11777015
08/15/16 12:31 AM
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Joined: Dec 2014
Posts: 1,665
Muzzlebrake
Extreme Angler
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Extreme Angler
Joined: Dec 2014
Posts: 1,665 |
That's crazy. No way that could pump properly.
From Genesis: "And God promised men that good and obedient wives would be found in all corners of the earth."
Then He made the earth round...and He laughed and laughed and laughed!
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