Thanks man! Sure aint a quick process though eh?? Guess we cant be too careful with the cooling system on these pigs.

 

Thanks! This should be a sticky.

 

+ 1 I agree, very useful

 

so you have to flush the 6.4 as well?

 

Great info and write up. Looks like a full day project.

 

Is the 6.4 the same as the 6.0 that when u flush it, the debris could clog up the oil cooler or do they have a different design?

 

I'm not sure in design differences between 6.0 and 6.4, but you are at a slight risk of clogging something by flushing it. The more you read about it, the more scared you will be to do it. My advice is just get a coolant filter and have it installed while your doing the flush (or before), and don't read all the "scare stories" of catastrophic possibilities.

 

i flushed mine when it had about 90,000 miles. My delta was good before the flush and remained the same after the flush. It is a lengthy process. Plan for most of the day.

 

here are pics after the flush.

 

Was that a coolant filter? Before or after the flush?

I'm in the process now, and don't want to do the restore/restore plus yet if that is what is collected afterwards. Or will most of this junk come out with the subsequent flushes after the cleaning?

I'm not sure why this truck is giving me the heeby-geebies every time I get around it. hnoes: I keep thinking the whole thing is just going to meltdown on me! I know this is likely not the case, or the previous single owner would not have kept it for 145,000 miles. I need to stop reading all the "class-action" threads and the like and more of the "what's on your ticker" threads.

Anyway, so should I continue with the flush unfiltered or really look at the filter install pre-flush? I was going to put a filter on this winter maybe, when I have more time. Right now, I'm on day 5 for the rad hoses and flush....an hour here, 3 hours there!

Thanks,

MT

 

Good write up plan on doing this as soon as I get my egr delete and coolant filter

 

Well I've noticed the EGR cooler is in a different spot on the 6.4 than it is on the 6.0, where is the oil cooler on the 6.4?

 

There are 2 (two) EGR coolers btw, if you arent aware!

 

Yea aren't they back to back?

 

The verticle one is clearly visible- front/top of motor, right in front of oil+fuel filter. The horizontal is on lower left (driver) side of motor, tucked in there quite nicely.

 

Thats funny. mine are both sitting in a box in my garage :haha: :nod:

 

I'm doing a flush this weekend. I am at 50,000 miles so I think it is a good idea. How long long are you guys waiting after each round of flushing to pull the plugs, hoses, etc... I don't want to take a special chemical shower. It's around 65 degrees here, so I am trying to get an estimate on how long it will take the cooling system to drop to a "safe" pressure.

If anyone has pointers on locating the engine block plugs (specifically the driver side) I would greatly appreciate it.

 

Do you fill in the degas bottle/container and it pulls in what it needs, or do you refill somewhere else?

 

i just put on a coolant filter...should clean out any crap that id have 2 worry about clogging up the egr cooler !!!

 

HELP!!! My engine block plugs are really tight. How are you guys taking them off??


Sent from the mower shop

 

Any advice on how to take these out???


Sent from the mower shop

 

any advice on the plugs?

 

I never could get those plugs out, I just flushed it an extra few times waiting for it to come out clear.


Sent from the mower shop

 

Do you fill up by the degas bottle or is there some other place you refill?

 

Yes, fill the degas bottle. Leave the cap off, and crank your truck and let it run for a few minutes while you give the top radiator hose a few squeezes. It will help get some of he air out.

 

So if you dont want to remove the thermostats you just have to wait longer for them to open so the water can move in to flush out the block?The thermostats stays closed making it so the water pump only circulates coolant through the block until it the tstat opens, but when it finally does open wouldn't the non circulated cold coolant from the rad drop coolant temps as it mixes with the hot block coolant?

 

my experience is this: when my stats were out i couldnt get my truck warm no matter how much i drove around. maybe theres something wrong with my truck. anyways had to re-install to get to proper temps for both the restores to work. restore suggest operating temps at 180*+ mine wouldnt get over 155* without stats.

 

i got the drivers side plug out with a breaker bar. i noticed even with the pet**** out and rad fully drained about half a gallon still comes out. i didnt do it every time but i did when i felt like it needed to be done.

 

im finishing the back half of the flush right now. my coolant was extremely dirty. so far i like what im seeing. before and after pics of the coolant plug after running both the restores.

 

:thumb::thumb:

 

i think im at 54k miles. first flush. shouldve done it waaay sooner. no problems with the filter minder. the sb intake is the newest version.

 

Okay thanks, when I dump the old coolant that is in my truck how much about will come out of the radiator? I seen on a service book that the engine holds about 25 quarts and making the radiator hold the other 5 quarts. How in the world do I get the other 25 quarts out after the radiator drains? The engine plugs can't drop that much.

 

Got my WP in just now, when I do the radiator, hoses, thermostats and pump tonight I will let you know what my Rig truck with 160xxx km looks like for cavitation.

 

sounds good. I am curious how hard it is to replace the water pump.

 

Me 2, nobody knows so I figure while I have the rad and I/C and **** out of the way, might as well how it is! I'm on limited time so if it turns into a 5 hour R&R, it won't be completed tonight

 

I did my flush before the filter, haven't even ordered one yet. My mentality is I needed to get new fluid in with my radiator and didn't want the gold ****, so I flushed it, filled it, flushed it and now I'm running it, in a few weeks when I get the filter then I will do another drain, install lines & filter setup but leave the filter off, flush it once more and then install the filter and I should be good to go. Waste a lot of fluids? Yup, do I care? Nope, if my engine is happy so am I.

 

Just wondering if the restore/restore plus will create a bunch of junk in the system, that won't get flushed out. The coolant coming out now was really clean, and it's not new according the the service record....but it is gold :doh: