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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1306 (BRAKE SYSTEM - GENERAL INFORMATION)DIAGNOSIS AND TESTINGSYMPTOM CHARTSYMPTOM CHART - NVH
2005 Ford Taurus SEL, 4D Sedan

Symptom Chart - NVH

2005 Ford Taurus SEL, 4D SedanSECTION Symptom Chart - NVH
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION & HARSHNESS . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION & HARSHNESS for the next likely system and continue diagnosis.
SYMPTOM CHART - NVH

Condition Possible Sources Action
  • Vibration when the brakes are applied
  • Brake disc (s)/drum(s)
  • Suspension components
  • Brake vibration/shudder - occurs when the brake pedal is released
  • Brake drag
  • Rear brake noise - rotational chirp
  • Wheel cylinder(s)
  • Rattling noise
  • Caliper guide pins or guide pin bolts
  • Missing or damaged anti-rattle clips or springs
  • CHECK the brake pads for missing clips or broken springs. INSTALL new components as necessary. REFER to FRONT DISC BRAKE .
  • Missing or damaged brake shoe hardware
  • CHECK the brake shoes for missing or broken hardware. INSTALL new components as necessary. REFER to DRUM BRAKE .
  • Loose brake disc shield
  • TIGHTEN the brake disc shield bolts to specification. REFER to SPECIFICATIONS .
  • Squealing noise - occurs on first (morning) brake application
  • Brake pads/shoes
  • Acceptable condition. Caused by humidity and low brake pad temperature.
  • Squealing noise - a continuous squeal
  • Brake pads/shoes
  • Squealing noise - an intermittent squeal
  • Brake pads/shoes
  • Acceptable condition. Caused by cold, heat, water, mud or snow.
  • Groaning noise - occurs at low speeds with brake lightly applied (creeping)
  • Brake pads/shoes
  • Acceptable condition.
  • Grinding/moaning noise - continuous
  • Brake pads/shoes
  • Brake disc/drums
  • INSPECT the brake pads/drums, brake discs/drums and attaching hardware for damage. VERIFY brake components are within specifications. REFER to BRAKE SYSTEM INSPECTION .
  • Excessive vacuum pump noise (above 60-70 dB)
  • Vacuum pump
  • INSTALL new vacuum pump as necessary.
  • Clicking noise (hybrid vehicles) - occurs when brake pedal is applied while the ignition is in the Key ON Engine OFF (KOEO)
  • Active brake booster
  • Acceptable condition.
  • Rumble/grinding noise - occurs while brakes are applied
  • ABS
  • Acceptable condition during an ABS or optimized hydraulic braking event.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.