Dakota 4WD V8-318 5.2L (1991)
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front antilock valve
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right rear wheel
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left rear wheel
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right front wheel
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left front wheel
8. Observe following precautions during bleeding procedure:
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Do not pump brake pedal at any time while bleeding. Air in system will be compressed into small bubbles that are distributed throughout
hydraulic system. This will make a second and third bleeding operation necessary.
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Bleed only one valve, or wheel brake unit at a time and use a bleed hose on each wheel cylinder and caliper bleed screw.
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Attach one end of bleed hose to bleed screw and insert opposite end in glass container partially filled with brake fluid. Glass container makes it
easier to see air bubbles as they exit the bleed hose.
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Be sure end of bleed hose is immersed in fluid. Immersing hose end in fluid prevents air from being drawn back into cylinder and brake line.
9. Bleed master cylinder first. Have helper operate brake pedal while bleeding each master cylinder fluid outlet line.
CAUTION: Do not allow the master cylinder to run out of fluid when bleeding the brakes. An empty cylinder will allow additional air to be
drawn into the system. Check the cylinder fluid level frequently and add fluid as needed.
10. Bleed rear brake antilock valve next. Bleed valve at brake line fittings one at a time. Surround line fittings with shop towels to catch fluid bled
from valve.
11. On models with ABS, if a replacement front antilock valve and motor assembly has been installed, bleed new valve as follows:
a. Bleed valve stem must be held inward (in open position) to fully bleed upper section of new valve assembly. Use Bleed Valve Depressor Tool
6670 to press valve stem inward to open position.
b
Remove cap from bleed valve stem. Then slide notched side of bleed tool onto boss that surrounds bleed valve stem.
c. Tighten thumbscrew on bleed tool just enough to push valve stem inward about 0.51 - 0.76 mm (0.020 - 0.030 in.).
d. Bleed new valve assembly at each brake line fitting one at a time. Surround line fittings with shop towels to catch fluid.
e. Remove bleed tool and install cap on valve stem.
12. On models with ABS, if original front anti- lock valve assembly is still in place, bleed valve does not have to be held open with tool. Bleed valve
assembly at each brake line fitting one at a time.
13. Bleed first wheel brake unit as follows. Start at left rear wheel:
a. Open caliper or wheel cylinder bleed fitting 1/2 to 3/4 turn.
b. Have helper press and hold brake pedal to floor.
c. Tighten bleed fitting and have helper release brake pedal.
d. Continue bleeding operation until fluid entering bleed container is clear and free of bubbles.
14. Repeat bleeding operation at remaining wheel brake units. Discard fluid bled into glass container. It should not be reused.
15. Check and top off master cylinder reservoir fluid level.
16. Verify proper brake operation before moving vehicle.
