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Old 02-22-2010, 07:52 PM   #21
CumminsISXpower
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I still dont agree with the price thing but to eack his own! As far as the 14L tou can give me a call and I will tell ya how I feel look up my thread,and we change oil at 10,000 miles Mobil Delvac 1300 super,oil samples every other change,coolant in the oil as we speak for the 4 th time, overhauled twice in 400,000 miles somethings wrong!
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Old 02-23-2010, 01:43 PM   #22
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I know these engines are not even remotely close but.....My wife has a 2006 Jeep Liberty diesel. I was able to obtain a modification that slices in to the main wiring harness, this closes off the EGR valve and tells the computer that everything is functioning properly with the EGR valve (no check engine light), when in fact it's closed and not working at all.

You would think that someone out there would have something available for engines like the ISX? If there was one available for my ISC 8.3L, I would be all over it.
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Old 02-24-2010, 02:28 AM   #23
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hi all, looks like i might have an oil cooler change in my future on an o5 isx 500 hp. found oil in expansion tank, is there anything i should watch out for ??? ive done coolers on the 855 engines . these look a lot different any tips would be appreciated .thanks
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Old 02-24-2010, 02:41 AM   #24
Burninoil
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if you are doing this yourself it is a fairly big job. drain coolant remove turbo and egr cooler remove oil cooler housing. plug oil passages in block to clean gasket. clean cooler(s) and pressurize and submerge in water to confirm oil cooler is causing problem. reassemble. now the fun part get 1-2 gals fleetguard coolant restore for flushing oil out of cooling system follow instructions on bottle could take 4+ hours to get it clean! if it is a volvo might as well replace surge tank it will never get clean. could get by with flushing once if there is not much oil in the system.

This is one of those repairs that just plain suck!
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Old 02-24-2010, 03:04 AM   #25
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except my experience tells me its not worth putting psi to and submerging,we have a hot tank at work but its so hard to mimic the same envirnment that the cooler runs in,if you got it apart change them!!! Unless you want to buy another engine,plug the oil holes!!!
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Old 02-24-2010, 03:47 AM   #26
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Quote:
Originally Posted by ddctech View Post
I work on dd, cats, cummins and mercedes. the cats and cummins part prices are pretty close to one another. The 14l egr is not bad, if you do the maintenance like you should.
oh you forgot to say anything about Mercedes. only the turbo cost's around $5900 and you have to wait about a week.
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Old 02-24-2010, 04:25 AM   #27
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just need to be careful I have seen a prorous oil cooler housing/filter head cause oil in coolant also seen the gaskets that seal the element leak too.

wish I still had the pic I took of the worst oil cooler failure i have ever seen. took the cap off the surge tank and a turd came out when the cooler housing was removed the stuff stay in the block. had to put air pressure to the system to get some of the coolant oil mix out there was not a drop of coolant in it, it was all a pile of gray crap. took over 8 hours to clean that mess up
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Old 02-26-2010, 02:30 AM   #28
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thanks burninoil, is there an oil cooler thermostat and should i change that as well? oil temp was at 220 bobtailing 70 mph engine temp was 180-190 oil press was 40 at 1500rpm
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Old 02-26-2010, 02:43 AM   #29
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If you are worried about it, change it. now is the time. the oil t-stat is located inside the housing behind the large plug at the front of the cooler.
easier to change with cooler removed.

220 seems ok for bob-tailing. as long as it does not go over about 235-240* loaded.

Last edited by Burninoil; 02-26-2010 at 02:51 AM.
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Old 03-04-2010, 02:42 AM   #30
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ok started my oil cooler change today everything going smooth easier than i thought so far. does anybody know where the oil temp sending unit is ?? AND why doesnt cummins include the oil cooler gskts with OIL COOLER had to buy them sepratley i am also changing oil thermostat , i think i caught in early cause only a small amount of oil in coolant maybe a half cup so far thanks for all info. ISX 500 HP 2005
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