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Old 06-20-2011, 01:45 PM   #1
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98 Coachmen Coolant Leak

I am using about a gallon or two of coolant on every trip. I notice sometimes when parked there will be a puddle of coolant under the passenger front. When I look inside the front access panel I can see fluid leaking under the passenger side under a black box. Listening to others I believe this is the heater core. Any suggestions for repair or replacing? It is very difficult to get at.

Thank you,

1998 Coachmen Santara
37' Class A Diesel

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Old 06-21-2011, 01:36 PM   #2
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do you smell coolant coming through your vents? Any moisture build up? Sounds like a heater core...and they are NO fun at all...

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Old 06-21-2011, 01:53 PM   #3
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It is probably is the heater core or a hose to it. Look in the generator compartment and see if you can see the leak. If the coolant is coming out of the AC drain condensation drain tube then it is the heater core. Is your generator a slide out genny?
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
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Old 06-21-2011, 04:54 PM   #4
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Sometimes the heater core is pulled, when there is no problem with the core.(please don't ask how i know.) Many times the heater hose clamp is loose. This allows coolant to shoot into the heater enclosure and makes it look like the core is leaking. I would start here.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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