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11-30-2022, 11:39 AM
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#1
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Junior Member
Join Date: Jan 2022
Posts: 3
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Changing a Anti Freeze filter on a ISL 400
I have a 2003 vintage ISL with a side radiator. It has a smaller spin on filter located next to the oil filter. In looking at it, it looks like it has a shut off valve above it in the housing. Does this valve just turn. I tried turning it by hand and did not budge. Does it require a special tool? Does it turn one way or the other? I dont want to break it with a plyers or something?
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11-30-2022, 02:09 PM
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#2
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Senior Member
Holiday Rambler Owners Club
Join Date: Apr 2020
Location: Farmington Hills, Michigan
Posts: 669
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There is actually a knob on both sides of the filter housing. Below are couple captions from Cummins Troubleshooting and Repair Manual for the knob.
If you sign into CumminsQuickserve with your engine serial #, you have access to to that and a lot of other info - engine diagrams etc.
https://quickserve.cummins.com/info/index.html
From another recent post, you probably need to put something into the "company" field.
The site is not the most user friendly I've ever seen but it does have a lot of info once you find it.
I assume you've checked the Owner's manual for coolant & SCA requirements for this engine?
__________________
2004 Holiday Rambler Imperial 40PKD, Cummins ISL 400
2019 Buick Envision AWD
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11-30-2022, 02:17 PM
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#3
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Junior Member
Join Date: Jan 2022
Posts: 3
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Thank you. While I did look it up on this website I did not find the image with the direction of turn. I have read they can get stuck and break as well.
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11-30-2022, 02:34 PM
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#4
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Junior Member
Join Date: Jan 2022
Posts: 3
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The website does not list a filter for the coolant. Not a very helpful site for this part.
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11-30-2022, 03:00 PM
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#5
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Senior Member
Holiday Rambler Owners Club
Join Date: Apr 2020
Location: Farmington Hills, Michigan
Posts: 669
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My -04 HR Owner's manual says Fleetguard WF2071 (with Chemical Additive DCA4+).
There are several different filters available depending on the SCA concentration.
My manual also has the following:
NOTE: The correct filter is determined by the total cooling system capacity and oil drain interval.
Refer to the Coolant Capacity Specifications in this section.
CAUTION: Insufficient concentration of the coolant additives will result in cylinder liner pitting and engine failure. The SCA concentration must not fall below 1.2 units or exceed 3 units per gallon of cooling system capacity.
__________________
2004 Holiday Rambler Imperial 40PKD, Cummins ISL 400
2019 Buick Envision AWD
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11-30-2022, 03:05 PM
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#6
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Senior Member
Join Date: Oct 2014
Posts: 6,352
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The correct filter depends on:
What type of coolant-- if one of the newer generation OAT based/long life coolants, a FILTER BLANK is correct. A filter blank has same filtration, but zero added SCA.
If old style (usually green) "Low silicate for diesel with added SCA" coolant, you need to test the SCA concentration and that will determine which filter you need (they come with different amounts of SCA.
But, an important question-- how old is your coolant, and what chemistry. Coolant changes are often neglected, and on a linered engine like the ISL, can cause major damage.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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11-30-2022, 03:21 PM
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#7
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Senior Member
Join Date: May 2010
Location: N.E. Florida
Posts: 1,337
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Quote:
Originally Posted by HealeyBob
I have a 2003 vintage ISL with a side radiator. It has a smaller spin on filter located next to the oil filter. In looking at it, it looks like it has a shut off valve above it in the housing. Does this valve just turn. I tried turning it by hand and did not budge. Does it require a special tool? Does it turn one way or the other? I dont want to break it with a plyers or something?
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Best result for me has been a simple crescent wrench.
Turn the valve clockwise to the closed position.
After changing the filter, turn the valve counter clockwise to the open position.
Use Cummins test strips to determine your present SCA levels. If below 1.2 you may want to consider a filter stronger than the WF2071 and/or use liquid DCA 4 Supplemental Coolant Additive available from Cummins/Fleetguard.
If SCA level is greater than 3.0 then a blank filter is in order.
__________________
DaveS
1998 American Eagle 40EVS
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12-01-2022, 09:46 AM
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#8
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Junior Member
Join Date: May 2022
Posts: 9
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I used the blue antifreeze which says it is a ELC coolant. Do I need any additives for this coolant. It is brand new. Removed the old, flushed the system with distilled water and added 12 gallons of new. I would use a blank filter with no additive correct?
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12-01-2022, 09:51 AM
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#9
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Senior Member
Join Date: Oct 2014
Posts: 6,352
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Quote:
Originally Posted by HealeyBob60
I used the blue antifreeze which says it is a ELC coolant. Do I need any additives for this coolant. It is brand new. Removed the old, flushed the system with distilled water and added 12 gallons of new. I would use a blank filter with no additive correct?
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Very likely.
But so you/we are not guessing, exactly what brand and product did you use?
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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12-01-2022, 10:06 AM
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#10
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Junior Member
Join Date: May 2022
Posts: 9
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Fleetguard ES Compleat 50/50. The filter I bought is a WF2074. It has a DCA4 additive which the cummins website says is compatible with this Anti Freeze. It is a ELC 1,000,000 mile Coolant. It says to check the SCA levels after 150,000 miles. I think I should be good? https://shop.cummins.com/CSSNAStore/...c2825?store=US
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12-01-2022, 10:10 AM
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#11
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Senior Member
Join Date: Oct 2014
Posts: 6,352
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That filter shows to have 12 units of DCA 4.
With your new coolant, you need a filter BLANK (filter with zero SCA/DCA).
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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12-01-2022, 11:49 AM
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#12
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Junior Member
Join Date: May 2022
Posts: 9
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Hmm... any idea how I find one of those? Thank you
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12-01-2022, 11:54 AM
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#13
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Senior Member
Join Date: Oct 2014
Posts: 6,352
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Quote:
Originally Posted by HealeyBob60
Hmm... any idea how I find one of those? Thank you
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Most places that sell coolant filters have them. They look just like the ones with SCA, but no SCA content.
So, try any place that caters to OTR trucks, a NAPA, etc.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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12-01-2022, 12:02 PM
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#14
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Junior Member
Join Date: May 2022
Posts: 9
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It looks like a WF-2084? Says None
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