Mercruser 4.5 Bravo 3 Trim

[dogwspts]

Bravo 3 trim will go up but will not go down . Any ideas

[Big Block Power]

Could be a bad relay on the trim pump. I think they are the same. Try to switch them.

[SAB220]

To get it down crack loose the trim lines under the drive, to see if it goes down as the oil leaks out,Try to go down a little Lubricate the shaft send it back up but NOT all the way back up, retry down lubricate, go further etc - Sometimes they get stuck.
or the something wrong mechanically

[akorcovelos]

I vote bad relay with bb.

[cmattj]

I also vote bad relay.
Here’s the “ but”
If adding a jump box suddenly allows the rams to draw in then it’s a low voltage issue.

Hydraulic rams require sustained voltage above 10.5 to move on return.

Try it it could be a sleepy battery.

[dogwspts]

This was happened at speed / cruse above 3000 rpm so if thought the voltage would be covered. Felt selonid clicking. Works great going up. After it setts for a while seems to work for a while. ?