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03-07-2023, 04:17 PM
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#1
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Veteran Member
City: Placida, FL
Vessel Name: No Regrets
Vessel Model: Swift Trawler 44
Join Date: Nov 2019
Posts: 25
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Shift Actuator Fault
Getting "shift actuator fault" on my starboard motor. Won't shift into forward (reverse works fine...) Transmission on the ST-44 is HS85AE-A.
Fist time it happened I shut down the motors/ignitions and all worked again after re-starting (for a few days...). Now the fault is back and it is consistent "shift actuator fault" every time...
Per a local mechanic's advise I replaced the solenoid ($700+) and no change.
The boat is a 2020 and only has 550hrs, recently changed AFT and filters and all looks perfect to me so I am stumped... Perhaps a communication/electrical issue? Thanks in advance for any info, similar experiences and/or advice you can provide.
Thanks,
Dave
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03-07-2023, 04:45 PM
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#2
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Guru
City: Jacksonville Beach, FL
Join Date: May 2015
Posts: 1,049
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Certainly does sound as though you're experiencing an electrical fault. What is the brand and model of the shifter controls?
__________________
"Less judgment than wit is more sail than ballast. Yet it must be confessed that wit give an edge to sense, and recommends it extremely." ~ William Penn
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03-07-2023, 04:49 PM
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#3
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Veteran Member
City: Placida, FL
Vessel Name: No Regrets
Vessel Model: Swift Trawler 44
Join Date: Nov 2019
Posts: 25
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Not sure how to answer, the boat is a 2020 so I assume the shifter/controls are Volvo matched/paired up with the D4-300 motors.
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03-08-2023, 09:01 AM
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#4
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Guru
City: Z
Vessel Model: tbd
Join Date: Mar 2017
Posts: 999
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Quote:
Originally Posted by nhislander
Getting "shift actuator fault" on my starboard motor. Won't shift into forward (reverse works fine...) Transmission on the ST-44 is HS85AE-A.
Fist time it happened I shut down the motors/ignitions and all worked again after re-starting (for a few days...). Now the fault is back and it is consistent "shift actuator fault" every time...
Per a local mechanic's advise I replaced the solenoid ($700+) and no change.
The boat is a 2020 and only has 550hrs, recently changed AFT and filters and all looks perfect to me so I am stumped... Perhaps a communication/electrical issue? Thanks in advance for any info, similar experiences and/or advice you can provide.
Thanks,
Dave
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Check wiring harness/connections that nothing is burnt, corroded, etc, especially around the engine area.
Usually one might swap parts between engines to test to see if can pinpoint.
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03-08-2023, 05:31 PM
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#5
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Senior Member
City: Bellingham
Vessel Name: Knot Hours
Vessel Model: Hatteras 58 LRC
Join Date: Feb 2019
Posts: 258
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Not sure if I read your post right. Did you say you recently changed the xmsn fluid? If so, that's an area to consider. Was the right fluid/oil in it? Is the right amount in it?
Hope that helps. A 2020 boat is basically brand new. The factory (xmsn or boat mfr) should be an easy resource.
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03-10-2023, 07:08 AM
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#6
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Veteran Member
City: Placida, FL
Vessel Name: No Regrets
Vessel Model: Swift Trawler 44
Join Date: Nov 2019
Posts: 25
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Thanks - I was wondering about the ATF change too... I used DEXRON-VI Automatic Transmission Fluid. Most reading i have done on the ZF transmission suggests DEXRON II or III, but I assumed DEXRON-VI meets (or exceeds) the lower/older ratings?
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03-10-2023, 09:31 AM
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#7
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Guru
City: Oconto, WI
Vessel Name: Best Alternative
Vessel Model: 36 Albin Aft Cabin
Join Date: Oct 2012
Posts: 2,736
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Electronic controls, not for me!
pete
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03-13-2023, 10:48 AM
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#8
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Veteran Member
City: Placida, FL
Vessel Name: No Regrets
Vessel Model: Swift Trawler 44
Join Date: Nov 2019
Posts: 25
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I have installed a new solenoid and swapped port to starboard. All wires and connections (that I can see/trace) appear fine/new. Two stations/helms and both act the same.
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03-15-2023, 03:01 PM
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#9
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Veteran Member
City: punta gorda
Vessel Name: Angel Sea
Vessel Model: 2018 Beneteau 44ST
Join Date: Nov 2020
Posts: 67
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Dave
Check with Alex or Robby at Viage they had a similar issue on another swift that I believe was resolved by replacing the wire harness.
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