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Old 02-27-2021, 04:07 PM   #1
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ISB Coolant Filter

Can someone provide some guidance on changing the Coolant Filter on my 2013 ISB 6.7?
Coach is new to me and I have done all fluids and filters and just don't know where/how to do the Coolant Filter.

Manual says every 15k.


Thanks!
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Old 02-27-2021, 06:41 PM   #2
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My 2013 Newmar Ventana w Cummins ISB 6.7 has no coolant filter.
I dont think others have one but could be wrong.
Careful if changing coolant if its a FreightLiner chassis.
FreightLiner has different coolant reqmts than Cummins.
Coolant does need SCA level check w test strips every 6 mos per maint recommendations. Usually filters help maintain SCA level but you can use an additive if/when needed. Need to know what AF is installed.
I had my AF checked by GJLube Svcs lab and recommended change which I did.
Several posts in the Newmar section on this subject.
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Old 02-28-2021, 05:43 AM   #3
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You could be right. I am seeing conflicting information for my year.
Thanks
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Old 02-28-2021, 09:12 AM   #4
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I'd suggest calling Freightliner with your VIN and ask if your chassis had the coolant filter installed.

In the meantime, you can look on the driver's side of the engine, above the oil filter and toward the rear of the engine (closer to the transmission) to see if there is a filter. I believe that's the general location, but not sure on an ISB, or if an ISB even has a filter.
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