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How do you replace the steel brake lines going to rear end on a Escort GT with disc brakes And what is that line block bolted suspension?

Replacing rear brake lines on a Ford Escort GT (assuming a model with rear disc brakes) is a moderately challenging job requiring some mechanical aptitude. It's crucial to bleed the brakes afterward to remove air introduced during the process. Improperly bled brakes are extremely dangerous.

Here's a general outline. Specific steps may vary slightly depending on your exact Escort GT year and model:

1. Preparation:

* Safety First: Disconnect the negative battery terminal to prevent accidental shorts. Wear safety glasses.

* Gather Supplies: You'll need new brake lines (get the correct length and flaring type from a parts store – provide your vehicle's year, make, and model), a tubing cutter, a double-flare tool (or a flaring tool appropriate for your lines), wrenches (various sizes to fit the brake line fittings), a brake line wrench (for easier access to hard-to-reach fittings), possibly a pipe wrench (use with caution), brake fluid, a brake bleeder kit, rags, and possibly a helper.

* Consult a Repair Manual: A repair manual specific to your Escort GT year is invaluable. It will show you the exact routing of the lines, the locations of fittings, and torque specifications. This is highly recommended, especially for your first brake line replacement.

2. Removing the Old Brake Lines:

* Locate the Lines: Identify the brake lines leading from the rear axle (near the calipers) to the main brake lines under the car.

* Disconnect the Lines: Carefully loosen and remove the fittings at both ends of the rear brake lines. Use wrenches appropriate for the size and type of fittings. Some fittings may be difficult to access, requiring the use of extensions or specialized wrenches. It's likely you'll have to work under the car.

* Remove Old Lines: Carefully remove the old brake lines from their routing. Take note of how they're routed, possibly taking pictures or making sketches, as you'll need to replicate the routing when installing the new lines.

3. Installing the New Brake Lines:

* Cut and Flare: Cut the new brake lines to the correct length, leaving extra length to allow for adjustments during installation. Use the double-flare tool to create properly formed flares on the ends of the new lines, ensuring they are consistent and free from imperfections. Improper flaring will lead to leaks.

* Route the New Lines: Carefully route the new brake lines, following the path of the old lines. Secure them using existing clips or brackets, or add new ones if necessary. The lines should be routed to prevent rubbing or chafing against other components. Avoid sharp bends that can restrict flow or weaken the lines.

* Connect the Lines: Connect the new brake lines to the fittings at both ends, tightening them securely with the correct wrenches. Tighten carefully to avoid stripping the threads. Consult your repair manual for the correct torque specifications.

4. Bleed the Brakes:

* This is critical: After installing the new brake lines, you *must* bleed the brakes to remove any air that entered the system. Follow the correct bleeding procedure for your vehicle; generally, this involves loosening the bleeder valve on each caliper while an assistant pumps the brake pedal. Bleeding is typically done starting at the furthest caliper (rear passenger side) and working your way toward the master cylinder.

* Check for Leaks: After bleeding, carefully inspect all connections for leaks.

Line Block Bolted Suspension:

"Line block" in the context of brake lines isn't a standard automotive term. It's possible this refers to a specific bracket or support used to hold the brake lines in place on the rear suspension. Without more detail (pictures or a diagram), it's hard to say for sure. The repair manual should clarify.

Important Considerations:

* Corrosion: Brake lines are often prone to corrosion, especially in areas exposed to salt and moisture. Inspect the entire brake line system carefully for any signs of rust or damage. If you find any corrosion, it's best to replace the affected section immediately.

* Professional Help: If you are not comfortable working on your brakes, it is strongly recommended that you take your vehicle to a qualified mechanic. Brake system failure can have serious consequences.

This is a general guide, and details may vary significantly depending on the specific year and model of your Escort GT. Always consult a repair manual for your vehicle's specific instructions and torque specifications. Safety is paramount when working on your braking system. If you are unsure about any step, seek professional assistance.