powersltc Posted July 19, 2021 Share Posted July 19, 2021 Ron P., 2004 Monaco Executive My 2004 Monaco Executive leaks coolant after driving/running. It does not run hot. Today, the low water began buzzing. Tomorrow, I will let it run and see if I can identify leak location. Any ideas/suggestions? Link to comment Share on other sites More sharing options...
millionroy Posted July 19, 2021 Share Posted July 19, 2021 I would check the return lines to the expansion tank. I have been down that road with a $600 expansion tank and the "technicians" failed to recognize and replace those lines which return to the top of the tank. Link to comment Share on other sites More sharing options...
vito.a Posted July 19, 2021 Share Posted July 19, 2021 Which engine? I would get a good light and start looking. Focus on the drivers side. One of the radiator hoses is most likely. Link to comment Share on other sites More sharing options...
millionroy Posted July 19, 2021 Share Posted July 19, 2021 8.3 liter isc on the top of the plastic tank to the left of the radiator /CSC . There are two 90 degree brass fittings on the top of the plastic tank. I can't believe how many different issues I've encountered with "gotta have a diesel" Link to comment Share on other sites More sharing options...
powersltc Posted July 19, 2021 Author Share Posted July 19, 2021 I have added a gallon of coolant to reservoir and coach has been running for about 20 minutes. Temp 158 and buzzer still sounding. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now