For those that don't think a coolant filter is needed - Page 20 - Diesel Truck Forum -
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post #191 of 192 (permalink) Old 01-28-2008, 06:48 AM
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well FWIW i have owned several vehicle's

Ford- Green coolant
Pontiac- Dex-cool
Ford- Gold coolant
even some red stuff if i remember correctly...

and EVERY STINKIN ONE had a nasty slimy FUNKY residue in the degas and a film or sediment also...

so i bough tone for my 6.0
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post #192 of 192 (permalink) Old 06-10-2013, 11:57 AM
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Originally Posted by blue View Post
Had a new EGR valve & cooler installed last week of June (expensive!) Kept hearing the fan kick in high gear. Took to another shop (back where I bought the truck), 2nd week of July. This time I paid for a new oil cooler, and yes, another EGR cooler. I did get the old parts, and yes you can clearly see the sludge in the coolant portion of the oil cooler. Oh yeah, the truck is stock and has 114k miles on it.

Technician tells me that Ford has redesigned the oil cooler to reduce oil cooler problems. True or not? I don't know. Just looking at the cooler and how it integrates into the engine, I don't see what will prevent the sludge from collecting again. Nor do I see how flushing the coolant system will remove any coolant sediment that's settled in such a recess.

I've been reading that some are installing a coolant filter off of one of the heater hoses. What do you think? Will it work? Better than nothing?

At this point I've decided that the 100k coolant flush isn't nearly frequent enough.

seems like I've read so many horror stories about plugged coolers after a flush is done. Flush should be done first before changing the coolers. my 6 liter has 75000 miles on it , the coolant looks brand new, never flushed it one time. I'll see what the cooler looks like because I'm getting ready to have hpop replaced and I'll have the egr cooler welded on both ends, and add a coolant filter. 150 bucks well spent for filter from sinister.

Few symptoms for plugged coolers, egr valve looks steam cleaned and its wet inside intake, losing coolant from degas bottle.
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