Announcement

Collapse
No announcement yet.

2012 200 PCM exc 343 5.7L Overheating

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • David3707
    replied
    I have a 09 216v with the 343 and I run around 170-175 normally.


    Sent from my iPhone using Tapatalk

    Leave a comment:


  • slalombum
    replied
    Ive tried 2 new different thermostats neither did anything different

    Leave a comment:


  • scottb7
    replied
    Is it possibly a bad or wrong thermostat?

    Leave a comment:


  • slalombum
    replied
    yes there is corrosion but nothing blocking waterflow that i can see

    Leave a comment:


  • NautiqueJeff
    replied
    Have you checked the risers for corrosion? That'd be my guess.

    Leave a comment:


  • slalombum
    started a topic 2012 200 PCM exc 343 5.7L Overheating

    2012 200 PCM exc 343 5.7L Overheating

    having trouble with the 2012 Nautique 200 its a PCM excalibur 343 5.7L engine 2000 hours
    Boat is running hotter than normal 175deg almost all the time and doesn't like idle or 28-30 mph. The service engine soon light will flash and go into limp mode until it is shut off and then runs normally again. It is an exhaust temp fault seemingly around 180 degrees.

    I have checked all the hoses and manifolds for blockages or leaks, replaced the serpentine belt, impeller, raw water pump, and thermostat. When run without a thermostat it stays 100 degrees like you would expect. Would it be worth a try to change the circulatory pump on the boat or any ideas on a next step?
    Last edited by slalombum; 06-29-2020, 03:24 PM.
Working...
X