Vessel View Fault HELP Transmission Overtemp!

Discussion in 'General Maintenance/Repair Questions' started by bmay1909, Jul 8, 2019.

  1. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives
    I received the following error on Vessel View Mobile over the weekend.

    "Transmission temperature switch A temperature sensor value is higher than normal"

    An alarm on my Smartcraft gauge says "Fault Sensor."

    Does anyone have any ideas on what could be causing this fault?
     

    Attached Files:

  2. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    It is overheating or a bad sensor.

    I assume you do not have a trans temp gauge to read from. You are best to IR Scan the trans, at the sensor locstion and see how hot it is (do both sides). You may have a trans cooler blockage.
     
  3. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives

    Thanks for the quick reply.

    This is all new to me. Where is this sensor located and what could cause a trans cooler blockage?
     
  4. villain style

    villain style Well-Known Member SILVER Sponsor

    Oct 10, 2006
    Mears Point Marina Kent Island, MD
    2006 44 DA
    QSC 8.3s
    Cummins QSC 8.3s 500HO
    What Trans do you have? Then google parts diagram for the Trans Model.
     
  5. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives

    How do I determine what trans I have?
     
  6. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    The trans itself will have the build plate with both model and serial number. You might also find it documented on a recent survey.
     
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  7. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives


    Good call on the survey!

    I have ZF Hurth, model HSW 63 IV-2.0
     
  8. Sublimetime

    Sublimetime Active Member

    654
    Oct 22, 2007
    clifton nj
    420 da
    454
    Now locate the temperature sender and an infrared temp gun, run boat up to normal operating temp( drive the boat so the gears get up to temp) and then take the temp of both transmissions near the sender. Compare the results, if both trans are at same temp and monitor is still showing high temp you have a sender problem. If one trans is hotter than the other you have a much bigger problem.
     
    bmay1909 likes this.
  9. villain style

    villain style Well-Known Member SILVER Sponsor

    Oct 10, 2006
    Mears Point Marina Kent Island, MD
    2006 44 DA
    QSC 8.3s
    Cummins QSC 8.3s 500HO
    bmay1909 likes this.
  10. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives

    Thank you!

    I'm going to give this a try this evening and see what happens.
     
    Last edited: Jul 8, 2019
  11. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives
  12. Hey Ray

    Hey Ray Member

    38
    Jan 11, 2016
    San Rafael, CA
    1997 330 Express Cruiser
    Twin Horizon 8.1
    I just had an alarm go off and code was for overheated transmission. Turns out filter/screen (looks like a bathtub drain with lots of small holes in it) on transmission cooler had most of the holes blocked with some sort of build up. Cleaned them out and no problems since. I was with him and seems like it took him about 15 mins to do both.
     
    bmay1909 likes this.
  13. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives

    Is this something that’s visible on the outside of the trans?
     
  14. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives
    7A7B74EF-0B01-48F2-8A0F-585C9728B4FC.jpeg It’s this the temp sender?
     
  15. Hey Ray

    Hey Ray Member

    38
    Jan 11, 2016
    San Rafael, CA
    1997 330 Express Cruiser
    Twin Horizon 8.1
    Not sure about your engine but I have Horizon 8.1's and the transmission cooler is mounted on rear side of engine, directly above the transmission. Look for a heat exchanger like tube. This is part of raw water cooling system. On mine, raw water leaves the engine exhaust manifolds then is routed to transmission cooler.
     
  16. bmay1909

    bmay1909 Member SILVER Sponsor

    120
    Nov 11, 2018
    Lake St. Clair/MI
    04 Sea Ray Sundancer 320
    Twin 6.2L MPI 320-HP V-Drives
    BF2351FC-C911-4272-A971-89E296111385.jpeg

    Thanks for the help, I appreciate it.

    Does this look more like it?
     
  17. Hey Ray

    Hey Ray Member

    38
    Jan 11, 2016
    San Rafael, CA
    1997 330 Express Cruiser
    Twin Horizon 8.1
    Not sure about what you have circled, but that black horizontal tube looks like the transmission cooler. I did not see my mechanic take it apart (wish I had) but I'm assuming the screen is where the raw water enters the cooler.
     
    bmay1909 likes this.
  18. LG111

    LG111 Active Member

    560
    Jan 4, 2015
    NW
    410
    8.1
    That's your neutral switch.
     
  19. LG111

    LG111 Active Member

    560
    Jan 4, 2015
    NW
    410
    8.1
    That on top is your temp sending unit. Bingo.

    Just pull the hoses off both ends of the cooler. The holes need to be clean and clear. Use a flashlight on one end and look down the other.
    There will be nearly zero water in that cooler. The system is self draining after about a half hour after the engine ran. Tell us what you find. If not plugged with something, then it's a bad sensor. Either way cheap fix.

    PS, all the raw water self drains out the shaft dripless.
     
  20. LG111

    LG111 Active Member

    560
    Jan 4, 2015
    NW
    410
    8.1
    One more thing, the tranny filter should be inspected too. Its located on the port side. There is an allenrench bolt on the top. Turn it until the thump hits far counter, then pull the cap off. It's an oring holding it in place, so you may need to pry it off gently. Remember what the top side is when lifting the filter out. Inspect it closely, run a magnet inside along the edges. Check for any metallic which is bad. Clean with some diesel or thinner and dry 100%. Replace and be sure the oring seats before you tighten back the thumb the otherway.

    Here is what metallic looks like on a magnet.
     

    Attached Files:

    bmay1909 likes this.

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