Radiator replacement and coolant flush - what else? - Diesel Forum - TheDieselStop.com
6.4L Power Stroke Engine and Drivetrain Discussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.

 
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post #1 of 3 (permalink) Old 05-05-2017, 10:25 PM Thread Starter
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Radiator replacement and coolant flush - what else?

Just recently purchased an '08 CCLB 6.4 manual trans truck. I walked out to it after work the other day to discover the radiator leaking down the driver's side frame horn. I had already planned on doing a coolant drain/flush/refill with ELC, since I don't know the history or type of coolant in it now.... so I guess I'll be combining it with a radiator swap out too. What I'm wondering is... what else should I do while I have all the coolant drained out? The truck has a DPF delete with Spartan tuner, and the EGR valve is turned off but the EGR cooler is still in place. I'm planning on the following for this project:

1. New radiator - Not sure on Motorcraft or aftermarket... motorcraft is 200 more than the highest priced aftermarket I can find on Rockauto.... worth it?
2. New thermostat - Motorcraft?
3. Coolant filtration - Dieselsite seems to be the best option here
4. EGR cooler removal with blockoff plates and coolant hose re-route/simplify - Who has a good kit with the plates and all the T's and pieces I would need to clean up the coolant lines?
5. Drain and flush as much as possible, and refill with EC-1 rated ELC
6. Drain and replace fuel rail coolant - I literally just found out that this existed the other day (don't poke too much fun, I came from the 7.3 world)
7. Replace (or clean?) degas bottle
Any input on my plan? Is there anything else I should do while the coolant is all out? I absolutely hate dealing with cooling systems, so I want to get it all done now so I don't have to touch it for a long time.

Also, in the mean time... I've topped the degas bottle off with distilled water.... mainly because I don't know WHAT kind of coolant is in it currently and I know that mixing ELC and ford gold is a no-go. Should I be ok to keep doing that until I get all the parts ordered? Obviously at some point the existing coolant will get too diluted, but I don't plan on delaying this until winter or anything.

2008 CCLB 6.4, 6-speed manual, DPF and EGR delete, Spartan tuner
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post #2 of 3 (permalink) Old 05-12-2017, 04:59 PM
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You didn't bother saying how many miles are on it. ?? You have the radiator off and your sitting right in front of the belts, tensioners, pulleys and hoses. There won't be an easier time doing this work than when you swap radiators. BTW ... I replaced with a Mishimoto and was very happy with it. I ran to the CAT dealership and brought home ELC. I also flushed with fleetguard restore and restore+. I installed fujimoto valves to help with the flushing and I pulled the thermostat out for the flush. I replaced all belts, hoses, yada yada yada.

There is lots of info on this site if you search about.
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post #3 of 3 (permalink) Old 05-16-2017, 05:31 PM Thread Starter
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Originally Posted by fatboytx View Post
You didn't bother saying how many miles are on it. ?? You have the radiator off and your sitting right in front of the belts, tensioners, pulleys and hoses. There won't be an easier time doing this work than when you swap radiators. BTW ... I replaced with a Mishimoto and was very happy with it. I ran to the CAT dealership and brought home ELC. I also flushed with fleetguard restore and restore+. I installed fujimoto valves to help with the flushing and I pulled the thermostat out for the flush. I replaced all belts, hoses, yada yada yada.

There is lots of info on this site if you search about.
Truck has 120k on it. Good thinking on belts, hoses, etc. I had planned on those kinds of things as being "replace 'em while they're accessible" type things.

The other thing I haven't decided on is whether I will go into the water pump and front cover while it's apart too.... seems like a good time to do that.

Thanks for the input on the Mishimoto, I think that makes the most sense over the factory ford or other cheapies with plastic end tanks, for a job like this. I understand they have a better designed "Peg" that is less susceptible to flex from the chassis and helps isolate the radiator better, which seems like a no brainer for an expensive aluminum piece that mounts to the body.

2008 CCLB 6.4, 6-speed manual, DPF and EGR delete, Spartan tuner
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