Bad trim pump or bad solenoids
12-18-2011 | 07:05 PM
#4
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Joined: Jan 2004
Posts: 4,480
Likes: 43
From: Tennessee
Put a volt meter on the small blue and small green wires on the solenoid and have someone push the trim button. The small blue wire will have +12V when you push the trim up and the small green has +12V when the switch is pushed down. The other small wire on the solenoid is a ground. Make sure you have a good connection there as well.
If the solenoid is just clicking, then you are getting power to it. The internal contacts are brass and the solenoids are not sealed, so the brass contacts corrode and won't make a good connection.
Hope this helps.
Eddie
12-18-2011 | 07:34 PM
#5
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Joined: Oct 2004
Posts: 616
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From: Portland, OR
I had one with shot brushes. Guess the previous owner liked to trim mostly with one tab because the other side and the drive pumps were fine. It would just click, and sometimes catch and go, mostly not. $3 later from McMaster, I put new brushes in it and it works like a champ.
12-18-2011 | 07:37 PM
#6
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Joined: Feb 2009
Posts: 787
Likes: 8
If you put power to either the blue or green wire on the large post on the solenoid and the pump runs, then the pump is fine. That also means that it has a good ground.
Put a volt meter on the small blue and small green wires on the solenoid and have someone push the trim button. The small blue wire will have +12V when you push the trim up and the small green has +12V when the switch is pushed down. The other small wire on the solenoid is a ground. Make sure you have a good connection there as well.
If the solenoid is just clicking, then you are getting power to it. The internal contacts are brass and the solenoids are not sealed, so the brass contacts corrode and won't make a good connection.
Hope this helps.
Eddie
Put a volt meter on the small blue and small green wires on the solenoid and have someone push the trim button. The small blue wire will have +12V when you push the trim up and the small green has +12V when the switch is pushed down. The other small wire on the solenoid is a ground. Make sure you have a good connection there as well.
If the solenoid is just clicking, then you are getting power to it. The internal contacts are brass and the solenoids are not sealed, so the brass contacts corrode and won't make a good connection.
Hope this helps.
Eddie
12-18-2011 | 11:34 PM
#7
Gold Member
Joined: Jan 2011
Posts: 1,482
Likes: 0
From: Omaha Ne
Sounds like Youngs Perfomance is on the right track, I would also check the 3 prong connector at the pump. Have seen them work loose or something land on the wire harness pulling the plug just enough to make a bad connection, there should be a clamp on that connector, My thoughts have seen it more than once. Randy
07-17-2016 | 06:34 PM
#9
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Joined: Jul 2016
Posts: 2
Likes: 0
solenoid or trim
If you put power to either the blue or green wire on the large post on the solenoid and the pump runs, then the pump is fine. That also means that it has a good ground.
Put a volt meter on the small blue and small green wires on the solenoid and have someone push the trim button. The small blue wire will have +12V when you push the trim up and the small green has +12V when the switch is pushed down. The other small wire on the solenoid is a ground. Make sure you have a good connection there as well.
If the solenoid is just clicking, then you are getting power to it. The internal contacts are brass and the solenoids are not sealed, so the brass contacts corrode and won't make a good connection.
Hope this helps.
Eddie
Put a volt meter on the small blue and small green wires on the solenoid and have someone push the trim button. The small blue wire will have +12V when you push the trim up and the small green has +12V when the switch is pushed down. The other small wire on the solenoid is a ground. Make sure you have a good connection there as well.
If the solenoid is just clicking, then you are getting power to it. The internal contacts are brass and the solenoids are not sealed, so the brass contacts corrode and won't make a good connection.
Hope this helps.
Eddie
07-17-2016 | 07:32 PM
#10
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Joined: Nov 2006
Posts: 1,313
Likes: 153
From: Tygart Lake, WV
Internal contacts of the solenoid need cleaned. Likely corroded. Did mine last year. Problem solved.
