Hello again, i've been dealing with this issue for a few years now....Ya'll have done me alot of help and provided expert guidance. I apologize that I have to ask for assistance again.
I've posted about this before and it seems the trouble stops - but then starts again. IT's back
My 2011 BF150 mounted on a 21 foot Hurricane gave me an overheat alarm again yesterday....it idled down and i shut it off. I look at the Garmin (NMEA2000) and it was reading 175 on the engine gauge - the overheat warning horn sounded sustained tone. I let it sit for a few minutes and checked to make sure had nothing plugging the intakes - and they were clear. the boat was running 5000 rpm for about 30 minutes prior. After a few minutes - fired the boat up and ran 20 minutes home - no more warnings or events. Gauge stayed right at 175 for the ride home
When i first started having these issues in 2015, i replaced the thermostats, impeller and initially thought faulty. I then took it to a dealer and he cleaned the relief valve that HONDADUDE suggested. Last year, i put new impeller in and again the horn sounded overheat. but gauges all said 175 - ir heat gun on head was 160. Couldnt duplicate.
This year, i got a check engine light and dealer couldnt decide if it was a OVERHEAT or O2 sensor issue - they said they had a history code of an over heat and i provided them the date that occurred. they kept the boat several days and they said the Honda Factor Tech helped them decipher whatever issue it was and they replaced the o2 sensor and i had them put a new impeller and kit in as well as the 200 hour service. and relived my wallet of 1000.00 dollars.(dealer is a honda dealer) I ran the boat about a week after i got it back and no issues.
It's not been 1.1 hours since i got the boat back from the dealer with the new impeller and o2 sensor and i got the alarm yesterday.
I will be buying new thermostats again,(Relatively inexpensive) as the ones i have are now going on 2 years ......but in the BF150 model, i see there are ECT sensors. I am not positive-but i think there are a total of 4 ECT sensors in the engine - I have no idea which it could be or how you could determine -
Can this issue be those sensors going bad? - i can't find much about these sensors and i how to swap them out yet? and has anyone had anything similar?
I dont really have a clue what else it could be -
New impeller and kit
New spark plugs
New 02 Sensor
All done 1.1 hour ago.....
Thoughts or recommendation from anyone???
Enjoy your holiday - I wont be on the water until i get this figured out.
thanks again for all your help
jeff
I've posted about this before and it seems the trouble stops - but then starts again. IT's back
My 2011 BF150 mounted on a 21 foot Hurricane gave me an overheat alarm again yesterday....it idled down and i shut it off. I look at the Garmin (NMEA2000) and it was reading 175 on the engine gauge - the overheat warning horn sounded sustained tone. I let it sit for a few minutes and checked to make sure had nothing plugging the intakes - and they were clear. the boat was running 5000 rpm for about 30 minutes prior. After a few minutes - fired the boat up and ran 20 minutes home - no more warnings or events. Gauge stayed right at 175 for the ride home
When i first started having these issues in 2015, i replaced the thermostats, impeller and initially thought faulty. I then took it to a dealer and he cleaned the relief valve that HONDADUDE suggested. Last year, i put new impeller in and again the horn sounded overheat. but gauges all said 175 - ir heat gun on head was 160. Couldnt duplicate.
This year, i got a check engine light and dealer couldnt decide if it was a OVERHEAT or O2 sensor issue - they said they had a history code of an over heat and i provided them the date that occurred. they kept the boat several days and they said the Honda Factor Tech helped them decipher whatever issue it was and they replaced the o2 sensor and i had them put a new impeller and kit in as well as the 200 hour service. and relived my wallet of 1000.00 dollars.(dealer is a honda dealer) I ran the boat about a week after i got it back and no issues.
It's not been 1.1 hours since i got the boat back from the dealer with the new impeller and o2 sensor and i got the alarm yesterday.
I will be buying new thermostats again,(Relatively inexpensive) as the ones i have are now going on 2 years ......but in the BF150 model, i see there are ECT sensors. I am not positive-but i think there are a total of 4 ECT sensors in the engine - I have no idea which it could be or how you could determine -
Can this issue be those sensors going bad? - i can't find much about these sensors and i how to swap them out yet? and has anyone had anything similar?
I dont really have a clue what else it could be -
New impeller and kit
New spark plugs
New 02 Sensor
All done 1.1 hour ago.....
Thoughts or recommendation from anyone???
Enjoy your holiday - I wont be on the water until i get this figured out.
thanks again for all your help
jeff
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