How To Replace Lower Transmission Cooler Line 2000-2006 Chevy Tahoe

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Transmission cooling lines deliver and return transmission fluid between the transmission and radiator to keep the fluid at a proper temperature. This video shows you how to install new lines from TRQ that are made to fit the specifications of your 2000-2006 Chevy Tahoe.

This process should be similar on the following vehicles:
2000 Chevrolet Tahoe
2001 Chevrolet Tahoe
2002 Chevrolet Tahoe
2003 Chevrolet Tahoe
2004 Chevrolet Tahoe
2005 Chevrolet Tahoe
2006 Chevrolet Tahoe

Tools you will need:
• 18mm Wrench
• Wheel Chocks

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⚠ DISCLAIMER:
While TRQ strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. TRQ is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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[JohnDoe-bdcx]

just did it on the ground to a 2002 z71 non rustbelt, skinny guy
no jack, both lines
dropped that cross member didn't touch the diff
just a lot of sloppy wiggle, was wishing for a lift
duct taped the ends
hardest part was the hand room for putting the clips on, tranny side
top side i had the clips on and slide the ends in easy(click), didn't work on the other end. i had to put the lines in and then the clips on.
dropped the clip a few dozen times and had to use the magnet to find it
this video was very helpful, thanks

[ConleyProduction]

Bro I stopped and laughed when the wrench went flying and pulls out the electric wrench for the 2 bolts 😂😂😂

[ConleyProduction]

For those having trouble getting the line out
Step 1: support the transmission by the jacking up by the rear differential
Step 2 separate the lower pillar frin the the transmission mount. Listen carefully on the driver side there are 2 21 mm nuts and 1 21 bolt holding that side on, DO NOT HAMMER IT OUT! GET A 21 MM WRENCH and another 21 mm wrench and loosen it up the rest of the way. I had trouble using at ratchet and socket on the 5.3 because the twin catalytic was in the way in the driver side
Step 3: there are I believe 2 15mm or 18mm nuts spray those down with PB blaster or rust Penetrate oil. Then take off.
Step 4: lower the the jack enough to get behind it. I would not do this but I noticed the pillar in the back was supporting the rear so I let the jack down completely but I would support it!
Step 4 now you got room, cut the Lines closest to the dang nut then get a 19mm wrench for the 2 oil cooler adapter on the transmission and use the CIRCLE SIDE ON THE 19MM WRENCH to fully grip it and break it loose. When you break it loose VERY IMPORTANT TO TIGHTEN AND LOOSEN BACK FOURTN BEFORE TAKING THOSE BOLTS OFF TO PREVENT CROSS THREADING!
THIS METHOD IS FOR THE ONES WHI HAVE TROUBLE GETTING THE LINES OUT. Then with the new transmission, the cooler adapter will come with a new snap ring, LEAVE IT ONE there do not remove! Put the new oil cooler adapter on there with the snap ring and make sure its snug tight, do not over tighten
Final step connect the hoses, they will snap right in, your welcome!
NEXT FOLLOW THE REST OF THIS VIDEO PROCEDURE😊
GOOD LUCK TO YOU GUYS!

[urgreatestenemy]

If like my job the clips that hold the lines on the transmission are vary hard to remove you can use a sawzall and cut the old lines leave some of the line exposed so it will be easier to remove the lines then use a long 18mm socket and remove the fittings. Also they don't mention you will need to remove the fan shroud and fan so if you don't own a lift you want to do that before jacking it up.

[KevinNayeli-idku]

Thanks man changed mine today this video helped me a lot

[Patrick-oyoy]

Quick tip; once you’re finished turn when left to right all the way to unsure the idler arm isn’t rubbing your transmission line, this will wear you brand new line out,
Also this is not the easiest job especially on the ground. I’ll admit I’ve gotten spoiled using a Lift.
Made me question why I haven’t bought a brand new truck already.
But I love it I got another I need to pull the transmission on next week 😂

[josealvarez]

Very well detailed video, Is nessesary to replace the transmission line connectors when the lines are replace?

[G-MONY]

Great video always enjoy y’all’s grind

[jamesshook]

Basically the same way to pipe in first gen z71 Chevy avalanche without auxiliary cooler.

[jamesforbes]

Does the top line connect from top of radiator to top port on transmission and lower on radiator to lower port on transmission ?

[blowjustvibin]

How come you didn’t add the clip back to the one that comes off the transmission?

[garyesada]

do you have to drain the trans fluid? I have a chevy HHR.

[baims]

That fitting in the side of radiator sure was loose

[vdzywwg]

How about working on a rust belt truck just once. Why didn't you put the clips on.

[alangomas]

You're skipping a lot of the video for one you didn't even show anything about the clip on the transmission side it is not that easy. Is your clip already on? Because in my experience these lines will not go on with the clip already on. Please a more detailed and better video

[Anthony-egpw]

How come when I took the lower connector off whatever it screwed to is no longer there? The connector into side of radiator

[lsx_oso]

Hopefully I get it right learn some stuff at at shop

[mikemcever]

7:26 my hand doesn’t fit there well this is for the wife & kids.

[AdrianRod]

You didn’t put the clip back on the trans