3.0 Mercruiser Trim Problem

jacko768

Recruit
Joined
Jul 13, 2012
Messages
2
I have a 2004 Mariah sx18 with a mercury mercruiser 3.0 that's trim will not go up. I had just got my carbs cleaned and took the boat out on the water to test and minutes after running i opened the hatch just to check to make sure everything was ok (and thank god i did!!!!) and noticed the mechanic ripped off the cooling hose to the engine and water was spilling out everywhere in the compartment! I couldn't believe it! He never reattached the thing ! I shut the engine right down put the hose back on and everything seemed to work properly but when i was going to trim the motor back up nothing happened. It makes sound and the pump turns on to trim down but nothing at all when trimming up. I'm assuming all the water spraying shorted something out. I am fairly new to boating so if anyone could lead me in the right direction that would be greatly appreciated. After some reading I think it may be the solenoid. If that's the case where is it located and where can I pick one up. Thanks in advance!!!
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,288
Re: 3.0 Mercruiser Trim Problem

I have a 2004 Mariah sx18 with a mercury mercruiser 3.0 that's trim will not go up. I had just got my carbs cleaned and took the boat out on the water to test and minutes after running i opened the hatch just to check to make sure everything was ok (and thank god i did!!!!) and noticed the mechanic ripped off the cooling hose to the engine and water was spilling out everywhere in the compartment! I couldn't believe it! He never reattached the thing ! I shut the engine right down put the hose back on and everything seemed to work properly but when i was going to trim the motor back up nothing happened. It makes sound and the pump turns on to trim down but nothing at all when trimming up. I'm assuming all the water spraying shorted something out. I am fairly new to boating so if anyone could lead me in the right direction that would be greatly appreciated. After some reading I think it may be the solenoid. If that's the case where is it located and where can I pick one up. Thanks in advance!!!

Ayuh,... If the pump is makin' noise, the electrical is workin'...

Is there any oil in the pump,..??

If it's makin' noise, it's outa oil, or leakin' Badly....
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: 3.0 Mercruiser Trim Problem

It makes sound and the pump turns on to trim down but nothing at all when trimming up.

Have you tried using the trailer button? If it goes up with the trailer button, but not with the trim button, then you have a trim limit switch that is either out of adjustment or not working.
 
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