DiverGuy
New Member
- Apr 29, 2019
- 27
- Boat Info
- 2002 Sea Ray Sundeck 220
- Engines
- 2002 Mercruiser 5.0 MPI Alpha One Gen II
I've been trying to diagnose an issue with my trim gauge. The gauge hasn't worked since I bought the boat about 18 months ago. It reads down all the time.
At first the trim up didn't work, only the trailer switch worked to raise it.
Last year I replaced the senders when I did a bellows job, so those are new. I also replaced the entire trim pump assembly because of some signs it was going out, so it's all new. I made sure every connector was clean and shiny when I connected it to the new pump.
Now trim up stops at 21.75 inches (after I adjusted it a little). Trailer raises it full up. Trim down goes down fine.
I had my wife watch the gauge as I rotated the sender puck on the outdrive. It reads down until it reaches a certain point, then jumps to full up instantly. No in between. 2 degrees one way its full up, 2 degrees the other way its full down.
This weekend I pulled the gauge and tested it. I put power to the ignition terminal and grounded the ground terminal and it read full up (It reads full up even with no power to it). Then I jumped the sender terminal to the ground with power still on the ignition terminal and the gauge went to full down. And it was a smooth swing that took about a second to go from full up to full down. So from what I have read, that means the gauge is good.
I made sure the purple wire barrel connector and the barrel connector with two blue wires that come from the sender are solid and clean. I found the big plug with the red, green, and blue wires that comes off the trim pump and pulled it open. It was somewhat corroded. Thought I had found the culprit. I cleaned off the spades on one side and did my best to clean out the slots in the other side. Reconnected it and still no change.
Anyone have any more ideas on what to check? I've been working around it just by listening for the change in the pump sound, but that's not always easy to hear. It would be nice to have an idea where my trim is.
At first the trim up didn't work, only the trailer switch worked to raise it.
Last year I replaced the senders when I did a bellows job, so those are new. I also replaced the entire trim pump assembly because of some signs it was going out, so it's all new. I made sure every connector was clean and shiny when I connected it to the new pump.
Now trim up stops at 21.75 inches (after I adjusted it a little). Trailer raises it full up. Trim down goes down fine.
I had my wife watch the gauge as I rotated the sender puck on the outdrive. It reads down until it reaches a certain point, then jumps to full up instantly. No in between. 2 degrees one way its full up, 2 degrees the other way its full down.
This weekend I pulled the gauge and tested it. I put power to the ignition terminal and grounded the ground terminal and it read full up (It reads full up even with no power to it). Then I jumped the sender terminal to the ground with power still on the ignition terminal and the gauge went to full down. And it was a smooth swing that took about a second to go from full up to full down. So from what I have read, that means the gauge is good.
I made sure the purple wire barrel connector and the barrel connector with two blue wires that come from the sender are solid and clean. I found the big plug with the red, green, and blue wires that comes off the trim pump and pulled it open. It was somewhat corroded. Thought I had found the culprit. I cleaned off the spades on one side and did my best to clean out the slots in the other side. Reconnected it and still no change.
Anyone have any more ideas on what to check? I've been working around it just by listening for the change in the pump sound, but that's not always easy to hear. It would be nice to have an idea where my trim is.