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2011 175 Pro XS loss of power?? #11374111 01/27/16 06:56 PM
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TexBass89 Offline OP
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Took the boat out the other day and could barely get it on plane, after I finally get her up she topped out at about 4600 RPM and about 10-12 MPH slower. Engine didn't sound bad, it gave no alarms. HELP PLEASE!!!!

Moritz Chevrolet - 9101 Camp Bowie W Blvd, Fort Worth, TX - Monte Coon (817) 696-2003
Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374139 01/27/16 07:06 PM
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Phoenix_Ed Offline
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Check your coil packs. I had a 2007 175 Pro XS and it did the same thing. I got all six of mine replaced by Mercury under a recall deal. Been a while, but worth checking out. I thought I had spun a prop!


Wishin I was fishin!! ..............>(((//*>
2021 Phoenix 819 - Mercury 200 4 Stroke - Ultrex
Her name is Novia Número Cinco.
Humminbird Helix 10 Mega DI - Helix 12 Mega SI - Mega 360
PB Largemouth - 9.51 - Toledo Bend - March 2014
Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374141 01/27/16 07:07 PM
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Troutnout Offline
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Coil Pack.. Guaranteed


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Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374142 01/27/16 07:09 PM
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JIM SR. Offline
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Check air, fuel, electricity...weight.

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374147 01/27/16 07:10 PM
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TexBass89 Offline OP
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that's what I thought also but I figured I would hear or feel a misfire

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374168 01/27/16 07:20 PM
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TexBass89 Offline OP
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and wouldn't I get an alarm for a coil pack being out???

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374299 01/27/16 08:01 PM
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Phoenix_Ed Offline
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My coilpacks were just no power. No alarm or anything.


Wishin I was fishin!! ..............>(((//*>
2021 Phoenix 819 - Mercury 200 4 Stroke - Ultrex
Her name is Novia Número Cinco.
Humminbird Helix 10 Mega DI - Helix 12 Mega SI - Mega 360
PB Largemouth - 9.51 - Toledo Bend - March 2014
Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374331 01/27/16 08:09 PM
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TexBass89 Offline OP
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ok thanks is there anyway to check the coil packs or is it standard to replace all of them

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374420 01/27/16 08:42 PM
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Chris_K Offline
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Originally Posted By: TexBass89
ok thanks is there anyway to check the coil packs or is it standard to replace all of them

I'd like to know as well

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374426 01/27/16 08:46 PM
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Ken A. Online Content
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Any competent dealer can check them and tell you which one is bad. It is highly unlikely that more than one coil has gone bad. What you are describing sounds like a bad coil. I had one go bad on a new Merc 300 XS with less than 50 hours on it. They will hook up the engine's ECU to their computer and know in just a few mins.



Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374493 01/27/16 09:09 PM
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Check them with an ohm meter. The bad one is the one with the most resistance;)

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374624 01/27/16 09:58 PM
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Troutnout Offline
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No alarms and no mifire on the coil pack, just a little power loss. Common problem. Its a guarantee thats what it is. Bring it in, put it on the computer, and they will tell you which one it is. If it was more than 1 you would have substantial power loss. Easy fix..........


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Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11374857 01/27/16 11:42 PM
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Tiltman Offline
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Tuner Dropped

pull the lower unit off and look up the mid section tuner will be sitting in the bottom of it.


Your welcome. Then go see Tommy at rockwall marine he knows the scoop on the proper fix.

Re: 2011 175 Pro XS loss of power?? [Re: TexBass89] #11375063 01/28/16 01:06 AM
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ToadSnatcher14 Offline
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I lost a coil pack on mine (225) and it wouldn't even think about getting on plane. No matter what I did. Sartin fixed it in 45 minutes and was back on the water.

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