Coolant hose replacement.
- Thread starter BMWTurboDzl
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"...replace all the hoses.." On mine, there are many (30?) hoses. Three radiators in the front and engine in the back. Many are tiny that connect metal pipes. Scratch my head why the pipes are not just a single piece. That's the "german" engineering approach to things- needless complication. Any time I go on a trip, I wonder about them rupturing. OE hoses will break the bank.
10 years/100,000 miles - carefully examine everything whether it moves or not. My experience is that other issues will usually take a vehicle off the road before the hoses fail. Talking about vehicles produced in the late 80's and later.
I was wondering why that was happening....
Shel_B
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When you start seeing rubberized black powder accumulating in your overflow tank, then it's time to change the hoses.
When you saw that, did you do anything about it, maybe post an inquiry about what you were seeing, or did you just wonder?
I think the metal/rubber hoses are due to heat. My vehicle has a hose like this (see #1 in diagram). The metal end is attached to the back end of the I6 block and travels to the front passing the turbocharger/exhaust manifold. The rubber portion is attached to the electric water pump. As you can the rubber piece is attached with a crimped metal band. I don't think the rubber portion can be bought individually. The piece runs about $150. The hose I was going to replace (See #3 in diagram) runs about $50 from the dealer and has the same crimped metal band but it has an thermoplastic flange attached. I may just do all three hoses as they're all 8 yrs old.
EDIT: Rein sells a rubber replacement piece for the rubber portion of the metal hose so I guess people remove the entire hose, replace the gasket, and cut off the rubber portion. *shrug*
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I'm still just wondering. My intent is to flush the cooling system at some point (meaning multiple drain and refills with water until it comes out clean) and refill with new stuff, probably Peak 10X. Car in question is a 2000 Camry. Coolant hoses are all original and look perfectly fine. Perhaps I should take a picture of what I am seeing and post it here. I have no idea what the "dirt" on the cooling reservoir is, but tiny hose particles certainly sounds like a possibility.
Shel_B
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Toyota has a problem with rubber hoses on some 6-cylinder engines, and they came out with an updated part. This clip shows the situation.I think the metal/rubber hoses are due to heat. My vehicle has a hose like this (see #1 in diagram). The metal end is attached to the back end of the I6 block and travels to the front passing the turbocharger/exhaust manifold. The rubber portion is attached to the electric water pump. As you can the rubber piece is attached with a crimped metal band. I don't think the rubber portion can be bought individually. The piece runs about $150. The hose I was going to replace (See #3 in diagram) runs about $50 from the dealer and has the same crimped metal band but it has an thermoplastic flange attached. I may just do all three hoses as they're all 8 yrs old.
Why flush? was the wrong coolant used?
Before I got my 99, a shop used what i assume was all makes all models stuff after a t stat change. I swapped for Toyota red when I did the TB. Not sure I have touched since then. Not sure why I would. Drain and refill when I do the next TB.
Original hoses. But the rad was swapped, the fiberglass tanks were seeping. Keep an eye out for that.
It still has some of it's original coolant, hence the flush. Radiator already replaced due to infamous Toyota upper plastic tank park break.
My Club Sport will be 28 years old in November, and has 150k miles on the clock. The only cooling system parts I have replaced are the thermostat and a plastic heater hose fitting. In 2021 I drove it to Hilton Head with the M42 motor spinning at 4000 rpm or higher for hours on end.
Yes, I know I'm living on borrowed time.
Yes, I know I'm living on borrowed time.
I was in the process of back flushing the heater hoses when in the process, I happen to stick my figure inside one of the hoses and discovered a black residue all over my finger. I thought hmm, that looks like the same stuff that's in the overflow tank. That's when the lightbulb went off in my head.
"Y flush?"
answ:
as a routeen engine maintence proceedure. Read owners manual or side of collant container.
Life span of the product is less than 5 yrs. The stuff breaks down (anti corrosive, heat drop
additives, etc). Clean it all out, dont leave some in, and start anew~
My big trouble is where to get rid of it. I dont have enuff for the commercial pick up, too much to drop off @
the big bx stores (75 gal on site). I WILL NOT "just get rid of it". May B pour it into 1gal containers take to prts
houses when they dont deliver prts quick enuff? aahahahaa
answ:
as a routeen engine maintence proceedure. Read owners manual or side of collant container.
Life span of the product is less than 5 yrs. The stuff breaks down (anti corrosive, heat drop
additives, etc). Clean it all out, dont leave some in, and start anew~
My big trouble is where to get rid of it. I dont have enuff for the commercial pick up, too much to drop off @
the big bx stores (75 gal on site). I WILL NOT "just get rid of it". May B pour it into 1gal containers take to prts
houses when they dont deliver prts quick enuff? aahahahaa
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When I did replaced the hoses on my 1994 GM P-30 chassis RV (454 TBI w/4L80E) the hoses were original dated on the hose (10/93). Once I had them off I looked them over very closely. I could find no obvious signs of cracking anywhere. This was back in May 2018.
Most places allow you to dispose of coolant in the sanitary sewer system.
not sure what that is but if it gets into water it's a no, no (poison).
The ground water, City treatment plant, 'ground' water (streams etc), man hole cover...
recycle it properly at acceptance centers or the truck comes to my shop to trade it off for new...
Shel_B
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I don't think so. Try that around here and your butt will be hauled away before you can say "But zrxkawboy said it was OK." I sure hope you're not doing that with your used coolant.
I don’t know where “around here” is, but you’re in the minority. It is allowed most places. Or are you just taking a wag that “your butt will be hauled away”?
Here’s another thread with references, including the OH EPA.
Coolant/Antifreeze Recycling/Disposal?
coming up on the Recommended service interval(105k mi) for the Coolant in My Car, but one question has evaded me, and my internet search abilities... how do you get rid of the old stuff? the only place listed for my county(and several others in the area), the local Solid waste district, is by...
bobistheoilguy.com
Here’s a couple more states as examples that will not haul your butt away:
Antifreeze Waste Management Guide - PUB0114 | Missouri Department of Natural Resources
What is the regulatory status of waste antifreeze? Waste antifreeze is not a listed hazardous waste under the federal hazardous waste regulations in Code of Federal Regulations 40 C.F.R. Part 261 Subpart D, but antifreeze may contain metals, particularly lead, and other substances that would...
Again, these are just a couple examples. A quick search will lead you to more.
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