Power Trim , Acting Up , Trims Up On Its own ...

OneLuv1979

Petty Officer 3rd Class
Joined
May 25, 2009
Messages
88
My 1999 Johnson is now trimming up on its own ....

My boat is on the side of the house and last night while trying to sleep i heard it going up .... Anyone have a clue what would make it act like this ?

its doing it on its own ...
 

crxess

Chief Petty Officer
Joined
Apr 30, 2009
Messages
559
Re: Power Trim , Acting Up , Trims Up On Its own ...

Check switch/ Trim motor will not run unless the circuit gets closed. Moisture in switch/contacts sticking/wires shorted together.
 

OneLuv1979

Petty Officer 3rd Class
Joined
May 25, 2009
Messages
88
Re: Power Trim , Acting Up , Trims Up On Its own ...

It has a switch on the motor and the throttle ....
You think something is wrong in the wiring ?

What am i looking for ?
 

OneLuv1979

Petty Officer 3rd Class
Joined
May 25, 2009
Messages
88
Re: Power Trim , Acting Up , Trims Up On Its own ...

I shook the wires by the trim switch on the motor and sure anough ...
But i cant find the wires ... How hard is it to take the side hoods off ?

I also noticed there is oil around the pump cyclinder ...
Anyone know how i go about filling the oil ?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,494
Re: Power Trim , Acting Up , Trims Up On Its own ...

If you have the trim toggle switch on the throttle handle, those can get water in them, which completes the up circuit. See if you can pull the switch out, and shake the water out of it.

Add Dextron III ATF to the PTT unit, when it is trimmed all the way up. Since you have a leak, you might pick up the replacement rubber parts kit and install some of the parts.
 

OneLuv1979

Petty Officer 3rd Class
Joined
May 25, 2009
Messages
88
Re: Power Trim , Acting Up , Trims Up On Its own ...

If you have the trim toggle switch on the throttle handle, those can get water in them, which completes the up circuit. See if you can pull the switch out, and shake the water out of it.

Add Dextron III ATF to the PTT unit, when it is trimmed all the way up. Since you have a leak, you might pick up the replacement rubber parts kit and install some of the parts.


I went out side and jiggled the wires and its the switch on the motor , i will just disconnect it untill i can afford to buy the $63 switch .....


Where does the ATF fluid go into the unit ? I looked all over cant find any place to add it ??
I can supply pics, if needed but im totally lost ( this is my 1st boat and im learning slow so please bare with me )
 

OneLuv1979

Petty Officer 3rd Class
Joined
May 25, 2009
Messages
88
Re: Power Trim , Acting Up , Trims Up On Its own ...

You're getting mosture (WATER) in the switch -
It's happened to me too- kinda freeky huh :eek::D



Yes i disconnected the switch , and its fine ....
Very wierd ...Especially @ 4am when my dog started going nuts cuz it is stuck going up ...


I need to know how to fill the tilt with ATF , where the hell is the resivor
 

Fl_Richard

Lieutenant
Joined
Jan 21, 2005
Messages
1,428
Re: Power Trim , Acting Up , Trims Up On Its own ...

It's the round venty looking thingy on the big bubbled part. Has a big common screwdriver slot in the top. Turn it lefty loosey and it will come off.
 
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