Need diagram for a 2004 chevy avalanche brake line

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Question moved to model category.

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You will need to make these lines up from straight stock And bend and double flare the ends to handle the pressure, this requires of course special tools and very special skills. You can't buy already make up replacement brake lines.

First, you have to make a new line. The steel brake lines are not available for ANY vehicle. The parts store will have sections of brake line that they can sell you. You should remove the old line and take it with yu so you can be sure and get the correct lenght and diameter.

You will then need either a "Bubble" flaring tool or a "Double" flaring tool depending on which type of flare your vehicle uses. You must look at the end of the original line to determine which it is. The steel brake line that you buy from the parts store will have double flares on both ends. To get the correct length howerver, you will most likely have to purchace a tube that is too long or your vehicle then cut one end off. You will then have to flare the end you cut.

NOTE: if your vehicle is equipped with metric bubble flares, there are also adapters that can be purchased that will screw into the bubble flare on your vehicle and adapt the fitting so that a standard double flare can be used on the tubing.

I recommend replacing the entire brake line from fitting to fitting. This can be very difficult to do, but it can be done. You may have to purchase a "roll" of bulk tubing to get a piece long enough to do this.
Some people do not want to go through all of this trouble, so they find a spot in the line that is in fairly good condition and cut the line. If you opt for this method, then you must now make a flare in the end of the line that you just cut off so the pieces can be "spliced" together.

When joining two pieces of line together, it is imperative that you use a flare union, NOT a compression fitting union. Brake lines must hold an extreme pressure (1100 - 1500 Psi.) using compression fittings is NOT SAFE.

Other than that, all I can tell you about HOW to change the line, is that you may have to disassemble several brackets and holders to get the old line out and the new line in depending on which line you are replacing and where it is routed.

Also see this video on YouTube that shows how to make a double flare: Double Flare Video

unfortunately the only thing you can do is replace it. no one makes pre formed lines so you can either remove the damaged one, and take it to a parts house, match the length, and fittings then take it home, bend it by hand which is very easy to do you don't need a bender so don't waste your money on one, and bleed the brakes. or you can track one down at a wrecking yard that came off the same rig. their are no way to patch these lines, I have temporarily fixed them before by completely cutting it in half where the hole is located, and then buying a brass union fitting at a local parts house and splicing it. I would not recommend this for a permanent fix

Your not going to find one. Brake lines need to be made you can't buy prebent lines.The main lines runs down the drivers side of the vehicle to feed the rear barkes along the frame with the fuel lines and the parking brake cable. Thats the one that rusts out. You can buy line cheap but it has to be the same size and you just stratien it out. You will need a tubeing cutter a flareing tool and some brake fittings. You can also buy stright sections with the flare and fittings pre made but olny 4 feet long. This is the easyest way remove the rear fitting at the junction in the rear run the premade peice toward the front and cut the line at an easy spot to make the new flare so all you need to make is one flare and one new coupleing just make sure you put the new coupleing on before you do the flare then thread it all together and it will work for another 15 years good luck Inow this may sound complex but its not and if you can do this it will save you hunderds of dollars

Radio Amp has died. Replace the Radio. The Amp/Pre Amp is built into the radio if this is stock. Buy a new one and install it.

They don't make diagrams for brake lines. The lines are sold in bulk. You need to measure and duplicate the bends in the orignal lines and cut/flare the lines yourself. You will need a tubing cutter, flare tool and tubing bender.

I'm not aware of a particular Manual that specifically addresses Brake Line for your Specific Vehicle.
However I have replaced several "complete" and "partial" Brake Lines in my years of experience.
Specific/Pre-Contured Brake Lines for your Truck are available at most auto parts stores. Calt them for availability and prices.
However these are somewhat expensive. YOU CAN 'MAKE' YOUR OWN LINES!
Also available at these auto parts stores are two (2) tools you can buy.
1) A Brake Line Bending/Shaping Tool.
2) A Brake Line Cutting/Flaring Tool.
These tools are very easy (and fun) to use.
The auto parts stores carry "Straight" "Bulk" Brake Lines in different sizes (lenght and diameter). They also carry Brake Line "male" and "female" Brake Line Connectors. Make sure you purchase the correct diameter size Brake Line and the correct Connectors to fit these Brake Lines.
If the original Brake Line that you are replacing has viable (usable) sections and/or connectors you can use, then use them.
Take the old Brake Line off using a flare wrench.
Check your Brake Line Connectors to see if they will properly connect to your remain system.
Measure this piece with a material measuring tape (don't tell momma!). Measure the straight Brake Line and using the Brake Line Cutting Tool, cut the straight bulk Brake Line. Using the old Brake Line as a reference: use the Brake Line Bending Tool to shape the straight bulk Brake Line into the desired shape, matching as close as possible to the original Brake Line.
BEFORE USING THE BRAKE LINE FLARING TOOL:
Place the proper "male" or "female" connectors onto the line, FACING the proper directions.
Using the Brake Line Flaring Tool: Flare the ends of the Brake Line.
Connect the "new" Brake Line using the flare wrench.
Make sure you Bleed the entire Brake System.
Let me know if this helped, or if you have any additional information or questions. Feel free to contact me at FixYa.com!
ps: Make sure you clean, roll-up and put away that material measuring tape!!

Left front weel wobling mechanics says it needs new roters $600

Hello,
I hope this helps.







Thank You,
Roy