Operation CHARM
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GMC Truck
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1988
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S15/T15 4WD Jimmy L4-151 2.5L
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Repair and Diagnosis
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Brakes and Traction Control
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Caliper Brake Fluid Leak
Caliper Brake Fluid Leak
1.
Damaged or worn caliper piston seal.
2.
Scores in cylinder bore.
3.
Corrosion build-up in cylinder bore or on piston surface.