LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (Accessory Drive System) >> Diagnosis And Testing >> Accessory Drive >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Under no circumstances should the accessory drive belt, tensioner or pulleys be lubricated as potential damage to the belt material and tensioner damping mechanism will occur. Do not apply any fluids or belt dressing to the accessory drive belt or pulleys.
  1. Verify the customer concern by operating the system.
  2. Visually inspect for obvious signs of mechanical damage.
    VISUAL INSPECTION CHART

    Mechanical
    • Drive belt cracking/chunking/wear
    • Belt/pulley contamination
    • Incorrectly routed belt
    • Pulley misalignment or excessive pulley runout
    • Loose or mislocated hardware
    • Incorrectly routed power steering tubes (rubbing)
  3. Eliminate all other non-belt related noises that could cause belt misdiagnosis, such as A/C compressor engagement chirp, power steering cavitations at low temperatures, variable camshaft timing (VCT) tick or generator whine.
  4. If a concern is found, correct the condition before proceeding to the next step.
    Fig 1: V-Ribbed Serpentine Drive Belt With Cracks Across Ribs
    G04584090Courtesy of FORD MOTOR CO.
    5. NOTE: Up to 15 cracks in a rib over a distance of 100 mm (4.0 in) can be considered acceptable. If damage exceeds the acceptable limit or any chunks are found to be missing from the ribs, a new belt must be installed.
  5. Check the belt for cracks. Up to 15 cracks in a rib over a distance of 100 mm (4.0 in) can be considered acceptable. If cracks exceed this standard, install a new belt.
  6. The condition of the V-ribbed drive belt should be compared against the illustration and appropriate action taken.
    1. Small scattered deposits of rubber material. This is not a concern, therefore, installation of a new belt is not required.
    2. Longer deposit areas building up to 50% of the rib height. This is not considered a concern but it can result in excessive noise. If noise is apparent, install a new belt.
    3. Heavy deposits building up along the grooves resulting in a possible noise and belt stability concern. If heavy deposits are apparent, install a new belt.
      NOTE: Piling is an excessive buildup in the V-grooves of the belt.
      Fig 2: Identifying V-Ribbed Serpentine Belt With Piling
      G03882222Courtesy of FORD MOTOR CO.
  7. There should be no chunks missing from the belt ribs. If the belt shows any evidence of this, install a new accessory drive belt.
    Fig 3: Identifying V-Ribbed Serpentine Belt With Chunks of Rib Missing
    G03882223Courtesy of FORD MOTOR CO.
  8. If the concern is not visually evident, verify the symptom and GO to SYMPTOM CHART .
scientia non olet · About LEMON Manuals