Coolant hoses - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 8 (permalink) Old 01-21-2015, 03:22 AM Thread Starter
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Coolant hoses

Looking for thoughts on changing radiator hoses as a maintenance item. I have 136k on a 2004 truck and had both engine oil and transmission fluid in my cooling system.

I have big trip coming up this spring and considering changing hoses. Just a waste of money and time or do any of you do this as things age?

Early 2004 F-250 4x4 CC 6.0


2nd owner, ARP studs 1 at a time, Some parts missing in the exhaust path, BD intercooler hoses, Blue spring, MC filters, Sinister coolant filter, Exhaust manifold gaskets, WARN lockouts, Gold coolant, zoodad mod, autometer boost gauge, high idle mod, Scangauge 2, SCT X3 tuned from KEM, autometer fuel pressure gauge, Archoil 6200 in the fuel, FICM by Ed w/ATLAS40, autometer pyro gauge,'08 Alum Rear Diff cover, 5w-40 Rotella T6 w/ Archoil 9100 in it, zert in the slip joint, harpooned fuel tank, 6.4 banjos


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post #2 of 8 (permalink) Old 01-21-2015, 03:47 AM
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Oils like ATF and motor oil in the cooling system will soften and weaken coolant hoses.

I would give them a good inspection, if any signs of hose swell, replace them.

Since you caught the oil in coolant issues early on, you may still be ok, but I don't want to be the one to quote those famous last words as a hose blows on you in the middle of nowhere

Harry

Jan 03' built 6.0/F250cc4wd trqsft/SCT-tuned by KEM-Performance/Garrett Powermax vg-turbo/blue spring mod/gauges=egt+boost+fuel+SG2/exhaust/airaid intake/DR 4.5 lift/dual bilsteins/315's/greasable ball joints/powerstop/smittybuilt/kc lights/high idle mod/roll-n-lock/Mobil Delvac1 ESP 5W40 with (Archoil AR9100 in the oil) and (AR6200 in the fuel)
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post #3 of 8 (permalink) Old 01-21-2015, 04:54 AM
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I changed mine at 120K miles and saw no indications of pending failure. I would wait to change them.

Dave

2004 Ford F-350 Regular cab with 6.0.
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post #4 of 8 (permalink) Old 01-21-2015, 11:20 AM
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I changed mine at 100k - just because that's what I did in the "old days". Just like tires, the rubber today is a lot better than 30 years ago. I could have gone quite a bit longer on mine.

That said, what Harry posted is very true. Techs will replace all coolant hoses after an oil contamination of the coolant.

Mark
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post #5 of 8 (permalink) Old 01-21-2015, 11:49 AM
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10 years is my limit on rubber hoses, contaminated coolant shortens that. The cost of coolant and a tow will be greater than the cost of the new hoses.

2003 F-250 CC SB FX4 Lariat Black on Gold
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post #6 of 8 (permalink) Old 01-21-2015, 06:25 PM
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I did my main hoses at 135k like many "because". When I puled them they looked perfect. The heater hoses were left alone and still are good at 190k.

Jack -
Formerly FMTRVT, Manager of Vehicle Testing - Brakes

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post #7 of 8 (permalink) Old 01-21-2015, 09:29 PM
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Changed mine when I studded the truck, didn't want hoses to catch me up, that was at 6 years and 108k.

The E99 has the original hoses and all of them will get replaced this spring. 16+ year old hoses are not confidence inspiring.

I must say, rubber hoses do seem to hold up vastly better than they did 20-30 years ago, I can remember changing heater hoses on 5.0L Mustangs and countless other cars from the 1980s that were leaking at 5-6 years old.


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post #8 of 8 (permalink) Old 01-22-2015, 03:18 AM Thread Starter
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Well looks like some new hoses and coolant are next on the list. Might do the steering box too been putting that one off.

Early 2004 F-250 4x4 CC 6.0


2nd owner, ARP studs 1 at a time, Some parts missing in the exhaust path, BD intercooler hoses, Blue spring, MC filters, Sinister coolant filter, Exhaust manifold gaskets, WARN lockouts, Gold coolant, zoodad mod, autometer boost gauge, high idle mod, Scangauge 2, SCT X3 tuned from KEM, autometer fuel pressure gauge, Archoil 6200 in the fuel, FICM by Ed w/ATLAS40, autometer pyro gauge,'08 Alum Rear Diff cover, 5w-40 Rotella T6 w/ Archoil 9100 in it, zert in the slip joint, harpooned fuel tank, 6.4 banjos


Not a diesel mechanic in real life but I play one on the Internet
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