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trans cooler lines

2010 silverado

trans cooler lines

Postby matheny9 [OP] » Oct 11 2010, 5:51pm

If I add a trans cooler and attach the rubber hose to the stock metal lines, is it sufficient to slide the rubber hose over the metal and secure it with hose clamps? Did not know how much pressure there was and if the rubber hose would blow off. Also did not know if there was a tool to make the retention bumps in the metal tubing.
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Related Topics  Leaking trans cooler lines   Leaking Transmisson or Cooler Lines?   stainless trans lines   Is this an auxiliary Trans cooler?   Help upgrading trans cooler   Trans. cooler line size?   New Trans Cooler Install - Pics   Seeking advice on auxiliary trans cooler   coolant leak trans cooler line ?   Replacing Trans Cooler Hard Line   Aux trans Cooler 2014 chevy 1500 5.3   Grille for 2015 2500HD trans cooler opening   fuel lines   Brake Lines? 
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Re: trans cooler lines

Postby jepics » Oct 11 2010, 6:13pm

There is a plumbing flaring tool that can be used to make the 'retention bump'. Be sure the lines are clean inside before connecting. The lines are not high pressure, but be sure to use rubber tubing that is compatible with the fluid.
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Re: trans cooler lines

Postby katjar503 » Oct 12 2010, 2:48am

What i would do is cut the line. Then flare or buy brass compression fitting that have barbed hose ends. The steal line have to have a ridge (bump) on them or the lines will blow off, over time the clamps loosen.
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Re: trans cooler lines

Postby jackboss45 » Oct 14 2010, 8:17am

Its a good idea to keep up on checking these lines, too. We have quite a few '08 and '09 1ton Duramax Silverado's in the fleet here in the arctic and its pretty common for them to come loose and dump all of your tranny fluid. It happened on a truck I was using and the entire contents of the system dumped in a matter of just minutes. Luckilly I was parked at the time and there was no damage to the truck, but it was a nasty mess as one could imagine. Afraid I haven't talked to the mech's here to find out the cause, but just a heads up.
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Re: trans cooler lines

Postby Z15 » Oct 14 2010, 11:45am

I have to ask, why would you want to add a trans cooler to a 2010 truck? Did it not come with the HD trailering package, which includes a HD trans oil cooler?

I would think twice before cutting lines on a new truck.
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Re: trans cooler lines

Postby Hartski » Oct 14 2010, 12:11pm

Yeah, mine came with a trans cooler, but it has the towing package.
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Re: trans cooler lines

Postby lzn197 » Oct 14 2010, 3:30pm

I agree with Z15.
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Re: trans cooler lines

Postby matheny9 [OP] » Oct 14 2010, 4:20pm

It does have the HD cooling pkg, however here in the south with the temps and humidity, when towing 6500lbs the trans fluid runs about 230 which is a little too high for me. As I understand 150-200 is in the normal range.
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Re: trans cooler lines

Postby Z15 » Oct 14 2010, 5:47pm

Are you sure that will help? If the fluid is running hot then the wise solution would be to try another ATF. I would be looking at using a 100% synthetic ATF. Contrary to common perception GM factory fill Dexron VI ATF is not a 100% synthetic ATF.

I know what I would use......100% synthetic PAO ATF..
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Re: trans cooler lines

Postby matheny9 [OP] » Oct 14 2010, 6:02pm

Not absolutely sure, just know that the HD pkg has the small stack finned cooler. Thought maybe larger cooler would keep the trans fluid cooler. I do have Mobil 100% synthetic fluid in it.
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