Brake Bleed - All Four

Complete brake system bleed procedure for all four wheels on a 2005 Dodge Viper, removing air from brake lines and ensuring firm pedal feel and safe braking performance.

Warnings

Tools required

Parts

• DOT 4 brake fluid (fresh, unopened container) × 1 — Use OEM specification DOT 4

Fluids

• DOT 4 brake fluid — 1 qt

Preparation

1. Park vehicle on level, solid ground and engage parking brake.
2. Place wheel chocks behind rear wheels before lifting front.
3. Verify brake fluid reservoir is filled to MAX line with fresh DOT 4 brake fluid from an unopened container.
4. Lift front of vehicle with floor jack at designated front jack point and secure on jack stands under front suspension pickup points.
5. Lift rear of vehicle with floor jack at designated rear jack point and secure on jack stands under rear differential mounting points.
6. Remove all four wheels and set aside in safe location.
7. Locate bleeder screws on all four brake calipers - rear-facing on front calipers, top or rear-facing on rear calipers.
8. Attempt to crack each bleeder screw loose 1/8 turn to verify they are not seized (do not open yet, just verify movement). If any bleeder is seized, do not force - penetrating oil and heat may be required.

Procedure

1. 1

   Prepare bleeding equipment and establish sequence
   Connect clear plastic bleeder hose to first bleeder screw location. Route hose into catch bottle partially filled with clean brake fluid (fluid level must be above hose end to prevent air being drawn back). Bleeding sequence for this vehicle must be verified against the 2005 Viper factory service manual (typically farthest-from-master-cylinder to nearest, but confirm exact order for this platform's brake circuit split). Have assistant sit in driver's seat or prepare pressure bleeder system.
   ℹ️Manual bleeding requires a second person. Pressure bleeder systems allow one-person operation and are recommended for this procedure.
2. 2

   Bleed right rear caliper
   Start with right rear caliper. If using manual method: have assistant pump brake pedal 5-6 times and hold firm pressure. While assistant maintains pressure, open bleeder screw 3/4 turn using 10mm box end wrench. Fluid and air will flow through hose into catch bottle. When flow stops and pedal reaches floor, close bleeder screw snugly (do not overtighten). Release pedal. Repeat pump-open-close-release cycle 5-8 times until no air bubbles appear in hose and only clean fluid flows. If using pressure bleeder: open bleeder screw 3/4 turn and allow fluid to flow until bubble-free, then close. Check master cylinder reservoir every 3-4 cycles and refill to MAX line as needed - never let level drop below MIN.
   ⚠Close bleeder screw BEFORE assistant releases brake pedal, or air will be drawn back into system.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
3. 3

   Bleed left rear caliper
   Move bleeder hose to left rear caliper bleeder screw. Repeat the same bleeding procedure as right rear: pump pedal 5-6 times (or apply pressure bleeder pressure), hold pressure, open bleeder screw 3/4 turn, allow fluid and air to evacuate until flow stops, close bleeder screw, release pedal. Continue cycles until no air bubbles appear and only clean fluid flows. Top off master cylinder reservoir to MAX line.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
4. 4

   Bleed right front caliper
   Move bleeder hose to right front caliper bleeder screw. Repeat bleeding procedure: pump pedal 5-6 times (or apply pressure bleeder pressure), hold pressure, open bleeder screw 3/4 turn, allow fluid and air to evacuate, close bleeder screw, release pedal. Continue until bubble-free. The front calipers on this vehicle are larger and may require additional cycles to fully purge air. Top off master cylinder reservoir to MAX line.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
5. 5

   Bleed left front caliper
   Move bleeder hose to left front caliper bleeder screw (final position). Repeat bleeding procedure: pump pedal 5-6 times (or apply pressure bleeder pressure), hold pressure, open bleeder screw 3/4 turn, allow fluid and air to evacuate, close bleeder screw, release pedal. Continue until bubble-free and only clean fluid flows. This is the final bleeder position. Top off master cylinder reservoir to MAX line.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
6. 6

   Perform second complete bleeding sequence
   Return to right rear caliper and repeat entire bleeding sequence on all four corners in the same order (RR, LR, RF, LF). This second pass ensures any stubborn air pockets are fully evacuated. Perform 3-4 pump-open-close cycles per corner, verifying bubble-free fluid flow. Maintain master cylinder reservoir at MAX line throughout. Note: If pedal feel remains spongy after two complete sequences, air may remain trapped in the master cylinder or brake lines; repeat the bleeding sequence or inspect for leaks. (Note: the 2005 Viper is not equipped with ABS.)
   ℹ️If pedal feel remains spongy after two complete sequences, air may be trapped in ABS hydraulic unit requiring professional scan tool bleeding procedure.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
7. 7

   Verify all bleeder screws are closed and clean calipers
   Confirm all four bleeder screws are tightened to the factory-specified bleeder torque (verify in service manual, typically low - snug but not over-torqued to avoid snapping). Wipe down all caliper areas with clean shop towels to remove spilled brake fluid. Inspect each bleeder screw area for leaks. Fill master cylinder reservoir to MAX line with fresh DOT 4 brake fluid and install reservoir cap.
   ⚠Bleeder screws are brass - final torque should feel snug but not tight. Overtightening will snap them off.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
8. 8

   Reinstall wheels
   Reinstall all four wheels, threading lug nuts by hand to prevent cross-threading. Using torque wrench, tighten lug nuts to the factory-specified torque (verify in 2005 Viper service manual, typically approximately 100 lb-ft) in star pattern (not circular pattern). Lower vehicle from jack stands to ground using floor jack, then remove jack stands. With vehicle on ground, perform final torque verification of all lug nuts in star pattern to 140 Nm (103 lb-ft).
   Torque spec

   Wheel Lug Nuts142.4 Nm (105 lb-ft)
9. 9

   Test brake pedal feel and function
   With engine off, pump brake pedal 10-15 times. Pedal should feel firm and high with consistent resistance. There should be no pedal travel to the floor and no spongy feeling. If pedal is soft or spongy, air remains in system and bleeding must be repeated. Start engine - pedal will drop slightly due to brake booster assist, but should remain firm. Apply firm brake pressure for 30 seconds and verify pedal does not slowly sink (if it sinks, internal master cylinder or caliper leak is present).
   ⚠️Do not drive vehicle if pedal is spongy, travels to floor, or feels abnormal in any way. Repeat bleeding procedure or have vehicle professionally serviced.

Reassembly

1. No disassembly was required for this procedure - all components remain installed.

Verification

• Master cylinder reservoir is filled to MAX line with clean DOT 4 brake fluid and cap is installed.
• All four bleeder screws are closed to 10 Nm (7 lb-ft) with no fluid leaks visible.
• Brake pedal is firm and high with no spongy feel when pumped with engine off.
• Brake pedal remains firm and does not sink when sustained pressure is applied with engine running.
• All four wheels are installed and lug nuts torqued to 140 Nm (103 lb-ft) in star pattern.
• Test drive in safe area at low speed: brakes should engage smoothly and firmly with no pedal fade, pulling to one side, or unusual noises. Perform several moderate stops to verify consistent brake response.
• After test drive, visually inspect all four bleeder screws and brake line connections for leaks while assistant applies firm brake pressure.

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