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Gooch's Radiator/Engine Backflush Procedure and Coolant Information

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1999 - 2003 7.3L Power Stroke Diesel  
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Old 11-19-2014, 05:55 PM
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Gooch's Radiator/Engine Backflush Procedure and Coolant Information

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  #406  
Old 01-11-2018, 03:22 PM
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Originally Posted by Whitey Ford View Post
It is exactly that! Cat ELC exceeds the performance of other ELCís.
If you grade performance based on miles and longevity, then I respectfully point out that Chevron Delo Heavy Duty ELC has better numbers than the CAT labeled brand.

Originally Posted by Skip1970 View Post
so i think from the education of sca vs elc im going to go with the blue sca additive rotella on our 2000 7.3 excursion. thank you guys.
Skip, read the first page of this thread where I post all the coolant info. Just read that and you'll see the best coolant for your 2000 7.3L is a Heavy Duty OAT based ELC. Don't use a coolant that needs SCA's.

Originally Posted by z31freakify View Post
Most of the injector cup threads pop up after someone changed to ELC and doesn't matter if its an E99 or 03. So if you take the plunge into ELC make sure you start preparing with injector cups and 620 LocTite and injector cup removal tool. Just my worthless .02
When the manufacturer of the engine say's a HD OAT ELC is the correct and best coolant to run in the 7.3L PSD, then you can chalk up what you've read and experienced as a problem caused by something else, in my opinion.

All my 7.3's run Chevron HD OAT ELC, and the Excursion has had it since '04 or '05. In fact, I've had to flush the ELC already because of the 10 year limitation, and refill with fresh ELC.

Originally Posted by Skip1970 View Post
man the elc sounds like the devils brew! i dont need no extra leaks, im not gonna risk it.
There's no risk, Skip.

Stewart
 
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  #407  
Old 02-14-2018, 01:20 AM
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I have 30k on my reman 7.3 that I replaced at 318k miles an I have a cracked injectior cup.. I run delo ELC.. My mechanic says to get the delo out asap as it's not good for my engine and may have caused my cup issue... Based on my reading here I feel he may be misinformed... He recommended zerex what is the absolute best coolant to use after I flush my system? Also should I use simple green or so mythology clean the diesel out of my coolant system?

Rick
 
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  #408  
Old 02-14-2018, 08:46 AM
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I put Zerex in when I bought my truck just over 10 years ago. Switched to Delo ELC about 2 years after that and have been running it since with no issues. I'm doing injector work right now (o-rings) at 305K and had no signs of cup issues. When I got the sticks out I had one cracked cup and some unusual pooling so decided to replace all 8 since I was in there already. I don't attribute that to my coolant though. They are brass and have been through 15+ years and 305K miles of heat cycling and vibration. IMHO I got my money's worth out of a $15 brass cup that mates to a dissimilar metal and helps separate 3 fluids at different temperatures and pressures.
 
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Old 02-14-2018, 06:11 PM
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Originally Posted by brian42 View Post
I put Zerex in when I bought my truck just over 10 years ago. Switched to Delo ELC about 2 years after that and have been running it since with no issues. I'm doing injector work right now (o-rings) at 305K and had no signs of cup issues. When I got the sticks out I had one cracked cup and some unusual pooling so decided to replace all 8 since I was in there already. I don't attribute that to my coolant though. They are brass and have been through 15+ years and 305K miles of heat cycling and vibration. IMHO I got my money's worth out of a $15 brass cup that mates to a dissimilar metal and helps separate 3 fluids at different temperatures and pressures.
I wonder if jasper installed new cups when they remanufactured the engine? I just can't see why after only 30k miles a cup would crack..
 
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  #410  
Old 02-20-2018, 11:08 PM
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im gonna do my orings this summer but really dont wanna do any cups yet. 270k on everything now
 
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