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Ugh. Leaky oil cooler lines.

AJMBLAZER

AJMBLAZER

Better to be lucky than good.
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My 2019 Silverado started leaving a drop of oil or two under the truck recently. I pulled the front skid and found this:
IMG_2744.jpeg
Yay…


Reading online I’m finding it’s pretty common on these. Mainly seems to be due to the ends pictured not really crimping/sealing the hose ends and as the rubber gets older it leaks.

New part is ~$111 from GM. I did find where a guy fixed his on an older gen truck by reusing all the hard parts, cutting off those clamp end things and then hose clamping new rubber on. Pretty sure mine would be similar.

Looks like it’s doable other than being a bear to get to each end.

Thoughts?
 
I’ve got a couple local places I could use also. Will have to see if they can turn them around in less than a day.

Think I have a Christmas Break project.
 
www.silveradosierra.com

oil cooler line failed. oil everywhere low oil pressure.

so im driving home on the freeway go to pass slower traffic. i didnt floor it. just change lanes and went a little faster. next thing i know my oil pressure starts dropping and i start hearing a loud ticking noise . like a failed lifter. i pulled over right away turned the truck off.i open the...
www.silveradosierra.com www.silveradosierra.com

Thoughts on the guy’s cut, rehose, and hose clamp method?
 
IF, the hose ends come off with out twisting the tubing...... A reputable hydraulic hose shop could re crimp a hi quality flexible hose on your fittings...

It worked years back on my K30
Dually.... It was a better hose than the factory.

Jeep wasn't so fortunate.....found a company in Michigan making OEM copies.
 
I’m off for a week or so at Christmas so really interested in seeing if I can do this myself. If it doesn’t work one of the GM dealers around here can get me the actual GM part.

I just need to get the gaskets for each end.
 
AJMBLAZER said:
www.silveradosierra.com

oil cooler line failed. oil everywhere low oil pressure.

so im driving home on the freeway go to pass slower traffic. i didnt floor it. just change lanes and went a little faster. next thing i know my oil pressure starts dropping and i start hearing a loud ticking noise . like a failed lifter. i pulled over right away turned the truck off.i open the...
www.silveradosierra.com www.silveradosierra.com

Thoughts on the guy’s cut, rehose, and hose clamp method?
Click to expand...
I have seen it done and work. The metal lines are barbed, so as long as you have good clamps, hard to find now, you should be good. Needs to hold 80PSI. Most of the hose clamps at an auto parts store are junk. Chinesium thin metal and they strip if you try to tighten them. Not sure where to get good ones.
 
I’ll have to dig through my hardware stashes. A lot of it is old stuff my Grandpa had.
 
I just bought the AC Delco from Rockauto for my GMT400. But! I've considered going the hydraulic hose route before. Just have the local NAPA make up a full set from the adapter to the radiator and hopefully be done with them.
 
Wish I’d known that earlier. Trying to find a set locally. Everything in stock is too small.
 
:thinking:
Wonder if this would work on tranny lines?
Not sure if they see more pressure or not though:dunno:
 
GM has had this problem for over 20 years. My '12 was no exception but the dealer replaced them under warranty. Mine are starting to seep again almost 100k miles later but it's hard to tell with all the oil undercoating I've done :doah:
 
shady said:
:thinking:
Wonder if this would work on tranny lines?
Not sure if they see more pressure or not though:dunno:
Click to expand...
Should. Don’t see why not. The Gates hose I used is rated for 400 psi. I just wasn’t able to find a bigger set of those fuel injection clamps locally.
 
You just gambled the cost of a replacement engine using screw clamps v. Manufacturer's hydraulic crimping...

Yes, Gates rates the working or burst rate at 400 psi, but that's with their approved crimping devices.

Mercedes Benz used aircraft style clamps since the 80's on their vacuum+ low pressure fuel hoses....from personal experiences, the new world hoses are not the same quality from the OEM 1980 era ...the replacement hoses would further compress, harden and the clamps couldn't hold a seal very well. I spent too much time on the side of the road, always at inconvenient times tightening clamps, shortening hoses, or replacing loose sections of hose.

My fuel delivery failure is peanuts compared to running out of motor oil.

If you want to live with clamps, upgrade to fuel injection / aviation style clamps +. retorque the screws when you change the oil.
 
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