PSA, triple check your electrical connections anyways.

havoc_squad

Senior Chief Petty Officer
Joined
Mar 5, 2011
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A reminder, triple check your electrical connections very closely when diagnosing, especially if you have an intermittent electrical fault where a high amperage item isn't working after being working for a bit then stops. Or when you are working on those cramped trim/tilt boxes with the wire connectors stacked on top of each other.

My issue behaved like a near 100% trim/tilt relay fault problem only occurring on one direction going down, it worked 100% going up.

Going down would work first for a couple of seconds/attempts, then it would stop working for a long time then somehow worked, then stopped again without touching any wiring.

Every time I could hear the trim down relay activate, so I know some power at least was moving the relay but didn't know how well.

Changed out both old relays with new, down didn't work still. Well, there goes my diagnosis on this and money out my wallet.

Found the green terminal spot tight and appears fine but took it off anyways, low and behold I found somehow the stacking of them possibly wasn't good enough for the current flow.

If it didn't work after this, then I certainly had a failure of the 12 volt high amp jumper cable/connection that goes to the down position relay for trim motor.

Re-stacked the green terminals, applied battery power, worked with both new and old relays for trim up and down.

Thankfully the trim relays looked to probably be OEM original from way back in 1990, so they probably needed to get changed, but anyways... Don't go poor throwing parts at the problem.
 
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