Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 566

BASIC BRAKE SYSTEM DIAGNOSIS

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BASIC BRAKE SYSTEM

35A-13

STEP 3. Check for interference between the dust cover and
brake disc.
Q: Is there interference?

YES : Repair or replace the part. Then go to Step 6.
NO : Go to Step 4.

STEP 4. Check the brake drums or discs for cracks.

Q: Are there cracks?

YES : Repair or replace the part. Then go to Step 6.
NO : Go to Step 5.

STEP 5. Check for bent backing plate(s).
Q: Is (Are) the backing plate(s) bent?

YES : Repair or replace the part. Then go to Step 6.
NO : Go to Step 6.

STEP 6. Recheck symptom.

Q: Is the symptom eliminated?

YES : Diagnosis is complete.
NO : Start over at step 1. If a new symptom surfaces, refer

to the symptom chart.

AC000860

DUST
COVER

BRAKE DISC

AB

AC000861AB

<REAR DRUM BRAKE>

<REAR DISC BRAKE>

BACKING PLATE

BACKING PLATE

BASIC BRAKE SYSTEM DIAGNOSIS

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BASIC BRAKE SYSTEM

35A-14

INSPECTION PROCEDURE6: Squealing, Groaning or Chattering Noise when Brakes are Applied

DIAGNOSIS

STEP 1. Check the brake drums and lining or
brake disc and pads for wear or cutting.

Q: Is there wear or cutting?

YES :

Repair or replace the part. Then go to Step

7.

NO :

Go to Step 2.

STEP 2. Check the calipers for rust.

Q: Is there rust?

YES :

Remove the rust. Then go to Step 7.

NO :

Go to Step 3.

STEP 3. Check the lining parts for damage.
If equipped with rear disc brakes, go to Step 6.

Q: Is there damage?

YES :

Repair or replace the part. Then go to Step

7.

NO :

Go to Step 4.

STEP 4. Check whether the lining is dirty or
greasy.

Q: Is the lining dirty or greasy?

YES :

Clean or replace the part. Then go to Step

7.

NO :

Go to Step 5.

STEP 5. Check whether the shoe hold-down
springs are weak or the shoe-hold-down pins
and springs are loose or damaged.

Q: Is there fault?

YES :

Repair or replace the part. Then go to Step

7.

NO :

Go to Step 6.

STEP 6. Adjust the brake pedal or brake booster
pushrod.
Refer to

P.35A-18

or

P.35A-32

.

Q: Is the adjustment value come?

YES :

Adjust. Then go to Step 7.

NO :

Go to Step 7.

STEP 7. Recheck symptom.

Q: Is the symptom eliminated?

YES :

Diagnosis is complete.

NO :

Start over at step 1. If a new symptom
surfaces, refer to the symptom chart.

INSPECTION PROCEDURE 7: Squealing Noise when Brakes are not Applied

DIAGNOSIS

STEP 1. Check whether the backing plate is bent or loose
and interfering with the drum. <Vehicles equipped with
rear drum brakes>
If equipped with rear disc brakes, go to Step 4.

Q: Is there fault?

YES : Replace the part. Then go to Step 10.
NO : Go to Step 2.

STEP 2. Check whether the drum is damaged due to
interference with the backing plate or shoe.

Q: Is there damage?

YES : Replace the part. Then go to Step 10.
NO : Go to Step 3.

BASIC BRAKE SYSTEM DIAGNOSIS

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BASIC BRAKE SYSTEM

35A-15

STEP 3. Check the brake drum for wear and the shoe-to-
shoe spring for damage.

Q: Is there wear or damage?

YES : Replace the part. Then go to Step 10.
NO : Go to Step 4.

STEP 4. Check the brake discs for rust.

Q: Are the brake discs rusted?

YES : Remove the rust by using sand paper. If still rusted,

turn the rotors with an on-the-car brake lathe. Then go
to Step 10.

NO : Go to Step 5.

STEP 5. Check the brake pads for correct installation.

Q: Are the pads installed incorrectly?

YES : Repair it. Then go to Step 10.
NO : Go to Step 6.

STEP 6. Check the calipers for correct installation.

Q: Are the calipers installed incorrectly?

YES : Repair it. Then go to Step 10.
NO : Go to Step 7.

STEP 7. Check the wheel bearings for deterioration or
damage, and the grease quality and quantity.
Q: Are the wheel bearings damaged or out of grease?

YES : Apply grease or replace the part. Then go to Step 10.
NO : Go to Step 8.

AC000862

WHEEL
BEARING

WHEEL
BEARING

<FRONT>

<REAR>

AB

BASIC BRAKE SYSTEM DIAGNOSIS

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BASIC BRAKE SYSTEM

35A-16

STEP 8. Check whether the brake booster, master cylinder
or wheel cylinder return is insufficient.

Q: Is the brake booster, master cylinder or wheel cylinder

return insufficient?
YES : Replace the part. Then go to Step 10.
NO : Go to Step 9.

STEP 9. Adjust the brake pedal or brake booster pushrod.
Refer to

P.35A-18

or

P.35A-32

.

Q: Is the adjustment value come?

YES : Adjust. Then go to Step 10.
NO : Go to Step 10.

STEP 10. Recheck symptom.

Q: Is the symptom eliminated?

YES : Diagnosis is complete.
NO : Start over at step 1. If a new symptom surfaces, refer

to the symptom chart.

INSPECTION PROCEDURE 8: Groaning, Clicking or Rattling Noise when Brakes are not Applied.

DIAGNOSIS

STEP 1. Check whether foreign material has entered the
wheel covers.

Q: Is there foreign material?

YES : Remove it. Then go to Step 5.
NO : Go to Step 2.

STEP 2. Check for looseness of the wheel nuts.

Q: Are the wheel nuts loose?

YES : Tighten to 98

±

10 N

⋅

m (73

±

7 ft-lb). Then go to Step

5.

NO : Go to Step 3.

STEP 3. Check for looseness of the caliper installation
bolt.
Q: Is the caliper installation bolt loose?

YES : Tighten to 100

±

110 N

⋅

m (74

±

7 ft-lb) for the front

caliper, or 60

±

5 N

⋅

m (45

±

3 ft-lb) for the rear caliper.

Then go to Step 5.

NO : Go to Step 4.

AC000863