Trim solenoid nut size

[87Aggie]

2000 Merc 5.7l w Bravo 3, trim goes down but not up. Need to check connections on solenoid. What size nuts are on the connections. The pump and solenoids are down deep and dark

 

[alldodge]

If it won't go up with the trailer button the yes look at the relays.
If it will go up with trailer button but not throttle handle button then its probably the trim limit switch

Not sure but in most cases the large ones are 7/16 or 3/8 and small ones are 5/16. Hope someone else has a more definitive answer

 

[87Aggie]

Thanks for the info AllDodge! I have the manual, I’ll perform the tests on the solenoids if cleaning up the connections doesn’t do the trick.