1999 MERCURY 225 EFI TRIM ACTING UP

[samson]

THE TRIM WILL WORK FINE THEN FOR NO RHYME OR REASON IT WILL QUIT WORKING. <br />SOMETIMES IT WILL TRIM UP BUT NOT DOWN. WHEN IT QUITS WORKING OR DOES THIS, <br />IF I LET IT SIT FOR AN HOUR OR TWO THEN IT WILL START WORKING AGAIN. IT IS VERY <br />OF COURSE IT ONLY DOES IT WHEN I AM ON THE WATER. NOT AT THE HOUSE OR MECAHNIC SHOP.<br />WHATS THE DEAL????

 

[rickdb1boat]

Re: 1999 MERCURY 225 EFI TRIM ACTING UP

Is the T&T fluid full? Pressure of the water when moving is why it won't operate satisfactorly. Or it could be the T&T is overheating. May be time for a new motor(T&T).

 

[samson]

Re: 1999 MERCURY 225 EFI TRIM ACTING UP

I CHECKED THE FLUID AND IT IS FULL. I AM IN AGREEMENT WITH YOU, IT MAY BE THAT SOMETHING IS HEATING UP AND WHEN IT GETS TOO HOT IT STOPS WORKING, BUT WHY WOULD IT TILT UP AND NOT DOWN IF THE MOTOR OR SOMETHING GOT HOT AND SHUT THE SYSTEM DOWN? ALSO THE MOTOR SOUNDS FINE WHEN IT WORKS. COULD IT BE A BAD RELAY??? WHAT ABOUT A SHORT SOMEWHERE????

 

[rickdb1boat]

Re: 1999 MERCURY 225 EFI TRIM ACTING UP

Swap the relays and see what happens.