NautiqueTom
New member
Hi guys. Hopefully a simple problem. 2010 6.0L. Just changed both elbows after four years, one had a crack and dumped a lot of coolant. Mechanic tested the boat in the workshop after the change and it ran for a while but then gave a high exhaust temperature code. On water testing today the boat was running cold on the gauge, around the 140 mark where it usually runs dead on 175. However the new elbows felt hotter than usual and after a little while the check engine light came on. When we plugged in the diagnostics it gave an exhaust temperature code again. The odd thing is that the boat doesn't have the exhaust elbow sensors so I am not sure which sensor is picking that up? During this test idle was fine, oil pressure, power etc.
My concerns are:
Was enough coolant added to the system? I had this issue before and seem to remember the boat took around 20 litres (5.2 gallons) of coolant. He didn't mention how much was added to refill but I am concerned that it was too little and possible the system was not purged of air.
Could this be thermostat related? The mechanic opened the thermostat housing after the testing but said there was nothing there, only one thermostat in the heat exchanger. Is that correct for this model?
My feeling is that the system is either blocked, causing the gauge (coolant temperature) to stay low as it is not circulating through the hotter parts of the exhaust and as a result the elbows are getting hot and causing the error code. OR that the amount of coolant is insufficient meaning it is not circulating, not getting to correct temperature and not cooling the elbows.
Does anyone know the coolant capacity for this engine?
I hope that makes sense, I am no mechanic. Appreciate any input.
My concerns are:
Was enough coolant added to the system? I had this issue before and seem to remember the boat took around 20 litres (5.2 gallons) of coolant. He didn't mention how much was added to refill but I am concerned that it was too little and possible the system was not purged of air.
Could this be thermostat related? The mechanic opened the thermostat housing after the testing but said there was nothing there, only one thermostat in the heat exchanger. Is that correct for this model?
My feeling is that the system is either blocked, causing the gauge (coolant temperature) to stay low as it is not circulating through the hotter parts of the exhaust and as a result the elbows are getting hot and causing the error code. OR that the amount of coolant is insufficient meaning it is not circulating, not getting to correct temperature and not cooling the elbows.
Does anyone know the coolant capacity for this engine?
I hope that makes sense, I am no mechanic. Appreciate any input.