Ram B1500, B2500, B3500, 1999-2003

Accessory Drive Belts 2

Print

Removal & Installation



  1. Attach a socket/wrench to the pulley mounting bolt of automatic tensioner.
  2.  
  3. Rotate the tensioner assembly clockwise (as viewed from front) until tension has been relieved from belt.
  4.  
  5. Remove the belt from idler pulley first.
  6.  
  7. Remove the belt from vehicle.
    WARNING
    When installing the accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. The correct belt with correct length must be used.



    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-A/C compressor (1), Without A/C (2), Power Steering Pump (3), Water Pump (4), Crankshaft Pulley (5), Auto tensioner (6), Alternator (7), Idler pulley (8)

  8.  
  9. Position drive belt over all pulleys except idler pulley. This pulley is located between generator and A/C compressor.
  10.  
  11. Attach a socket/wrench to pulley mounting bolt of automatic tensioner .
  12.  
  13. Rotate socket/wrench clockwise. Place belt over idler pulley. Let the tensioner rotate back into place.
  14.  
  15. Remove wrench. Be sure belt is properly seated on all pulleys.
  16.  
  17. Check belt indexing marks.
  18.  

Use a socket, wrench or ratchet on the tensioner pulley to rotate the tensioner arm, loosen the belt and disengage it from one of the fixed pulleys. To install, place the belt over all pulleys but the tensioner pulley, then rotate the tensioner arm in the same manner and slip the belt over the pulley. When you release it, the spring-loaded tensioner will automatically apply the correct tension to the belt.



Click image to see an enlarged view

Fig. Some tensioners may be rotated clockwise to remove tension . . .



Click image to see an enlarged view

Fig. . . . while others must be rotated counterclockwise. Check before applying excessive force



Click image to see an enlarged view

Fig. Diesel engines may use a square hole instead of a bolt or nut to rotate the tensioner arm. Use a ratchet without any socket for these vehicles


NOTE
Depending on model, engine and belt driven accessories, the tensioner arm may be rotated clockwise or counter clockwise to relieve tension. Be sure to check this by attempting to move the tensioner in either direction. Also, a wrench, a socket and ratchet, a plain ratchet, or a special belt tensioner tool may be used.


CAUTION
Be sure the tool used to rotate the tensioner is the proper size. Bodily harm may occur from tool slippage due to the pressure applied by the tensioner.



Click image to see an enlarged view

Fig. Rotating tensioner and removing serpentine belt

  1. Disconnect the negative battery cable.
  2.  
  3. Attach the proper size socket, wrench, or ratchet to the automatic belt tensioner pulley bolt or square hole.
  4.  
  5. Rotate the tensioner arm until tension has been removed from the belt.
  6.  
  7. Remove the belt from the tensioner pulley, and then slowly allow the tensioner arm to rotate back until it stops.
  8.  
  9. Remove the belt from the remaining pulleys.
  10.  

To install:


WARNING
The drive belt must be installed exactly as the manufacturer states. Refer to the Belt Routing Label in the engine compartment to ensure proper installation. Unless the belt is correctly routed, engine or accessories may be damaged due components rotating in the wrong direction.

  1. Position the belt over all of the pulleys except the tensioner.
  2.  
  3. Attach the proper size socket, wrench, or ratchet to the automatic belt tensioner pulley bolt.
  4.  
  5. Rotate the tensioner until the stop is reached. Carefully position the belt over the tensioner pulley and release it slowly until it contacts the belt.
  6.  
  7. Check the tensioner indexing marks to make sure the proper new belt is installed and the tensioner is not worn beyond its limits.
  8.  
  9. Check to make sure the belt is seated properly on all the pulleys. Check for proper belt routing.
  10.  
  11. Connect the negative battery cable.
  12.  
  13. Start the engine and observe the belt to ensure proper operation.
  14.  


CAUTION
Do NOT attempt to disassemble the automatic belt tensioner. High spring pressure may cause flying parts and bodily injury.



Click image to see an enlarged view

Fig. Verify serpentine belt alignment in the pulley



Click image to see an enlarged view

Fig. Serpentine belt routing-3.9L,V6 5.2L/5.9L V-8 LDC-gas engines



Click image to see an enlarged view

Fig. Serpentine belt routing-4.7L engine



Click image to see an enlarged view

Fig. Serpentine belt routing-5.9L HDC-gas engines and 8.0L V-10 engines with A/C



Click image to see an enlarged view

Fig. Serpentine belt routing-5.9L HDC-gas engines and 8.0L V-10 engines without A/C



Click image to see an enlarged view

Fig. Serpentine belt routing-5.9L diesel engines without air conditioning



Click image to see an enlarged view

Fig. Serpentine belt routing-5.9L diesel engines with air conditioning

3.7L & 4.7L Engines

WARNING
Do not let tensioner arm snap back to the freearm position, sever damage may occur to the tensioner.

Belt tension is not adjustable. Belt adjustment is maintained by an automatic (spring load) belt tensioner.

  1. Disconnect negative battery cable from battery.
  2.  
  3. Rotate belt tensioner until it contacts it's stop. Remove belt, then slowly rotate the tensioner into the freearm position..
  4.  
  5. Check condition of all pulleys.
    WARNING
    When installing the serpentine accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.

  6.  

To install:

  1. Install new belt. Route the belt around all pulleys except the idler pulley. Rotate the tensioner arm until it contacts it's stop position. Route the belt around the idler and slowly let the tensioner rotate into the belt. Make sure the belt is seated onto all pulleys.

    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-3.7L and 4.7L gasoline engines

  2.  
  3. With the drive belt installed, inspect the belt wear indicator. On 4.7L Engines only, the gap between the tang and the housing stop (measurement A) must not exceed 24 mm (.94 inches). If the measurement exceeds this specification replace the serpentine accessory drive belt.

    Click image to see an enlarged view

    Fig. With the drive belt installed, inspect the belt wear indicator. On 4.7L engines, the gap between the tang and the housing stop (measurement A) must not exceed 0.94 in. (24mm)

  4.  

3.9L & 5.2L And 8.0L Engines

Drive belts are equipped with a spring loaded automatic belt tensioner. This belt tensioner will be used on all belt configurations, such as with or without power steering or air conditioning. For more information, refer to Automatic Belt Tensioner, proceeding in this group.

Attach a socket/wrench to pulley mounting bolt of automatic tensioner. The threads on the pulley mounting bolt are left- hand. Relax the tension from the belt by rotating the tensioner counterclockwise (as viewed from front). When all belt tension has been relaxed, remove belt from tensioner pulley first and other pulleys last.

Click image to see an enlarged view

Fig. View of the pulley bolt (1), idler pulley (2), tensioner pulley (3), tensioner (4) and tensioner mounting bolt (5)

To install:


WARNING
When installing the accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. The correct belt with correct length must be used.


WARNING
If the pulley is to be removed from the tensioner, its mounting bolt has left-hand threads.

  1. Position drive belt over all pulleys except tensioner pulley.
  2.  
  3. Attach a socket/wrench to pulley mounting bolt of automatic tensioner.
  4.  
  5. Rotate socket/wrench counterclockwise. Install belt over tensioner pulley. Let tensioner rotate back into place. Remove wrench. Be sure belt is properly seated on all pulleys.
  6.  

5.7L Engine
  1. Remove the air intake tube between intake manifold and air filter assembly..
  2.  
  3. Release the belt tension by rotating the tensioner counterclockwise with a 15 mm wrench on the tensioner pulley bolt. Rotate belt tensioner until belt can be removed from pulleys.
  4.  
  5. Remove belt.
  6.  
  7. Gently release tensioner.
  8.  

To install:

Click image to see an enlarged view

Fig. Accessory serpentine belt routing: Alternator (1), idler pulley (2), P/S pump (3), A/C compressor (4), crankshaft (5), belt tensioner (6) and water pump (7)-5.7L engine


NOTE
When installing accessory drive belt onto pulleys, make sure that belt is properly routed and all V-grooves make proper contact with pulleys.

  1. Position the drive belt over all pulleys except for the water pump pulley.
  2.  
  3. Rotate tensioner counterclockwise and slip the belt over the water pump pulley.
  4.  
  5. Gently release tensioner.
  6.  
  7. Install the air intake tube between intake manifold and air filter assembly.
  8.  

5.9L Diesel Engine

WARNING
Do not attempt to check belt tension with a belt tension gauge on vehicles equipped with an automatic belt tensioner.

Drive belts on diesel engines are equipped with a spring loaded automatic belt tensioner. This belt tensioner will be used on all belt configurations, such as with or without air conditioning.

  1. Depending on the year of the vehicle, a 3 / 8 inch or 1 / 2 inch square hole is provided in the automatic belt tensioner. Attach a 3 / 8 inch or 1 / 2 inch drive-long handle ratchet to this hole.
  2.  
  3. Rotate ratchet and tensioner assembly clockwise (as viewed from front) until tension has been relieved from belt.
  4.  
  5. Remove belt from water pump pulley first.
  6.  
  7. Remove belt from vehicle.

    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-2001-03 5.9L Diesel engines with A/C



    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-2001-03 5.9L Diesel engines without A/C



    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-2004-05 5.9L Diesel engines with A/C



    Click image to see an enlarged view

    Fig. Accessory serpentine belt routing-2004-05 5.9L Diesel engines without A/C

  8.  

To install:


WARNING
When installing the accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. The correct belt with correct length must be used. Position drive belt over all pulleys except water pump pulley.

  1. Attach a 1/2 inch ratchet to tensioner.
  2.  
  3. Rotate ratchet and belt tensioner clockwise. Place belt over water pump pulley. Let tensioner rotate back into place. Remove ratchet. Be sure belt is properly seated on all pulleys.
  4.  

5.9L Gasoline Engines

NOTE
The belt routing schematics are published from the latest information available at the time of publication. If anything differs between these schematics and the Belt Routing Label, use the schematics on Belt Routing Label. This label is located in the engine compartment.


WARNING
Do not attempt to check belt tension with a belt tension gauge on vehicles equipped with an automatic belt tensioner.

  1. Drive belts on these engines are equipped with a spring loaded automatic belt tensioner. This belt tensioner will be used on all belt configurations, such as with or without power steering or air conditioning.
  2.  
  3. Attach a socket/wrench to pulley mounting bolt of automatic tensioner.
  4.  
  5. Rotate tensioner assembly clockwise (as viewed from front) until tension has been relieved from belt.
  6.  
  7. Remove belt from idler pulley first.
  8.  
  9. Remove belt from vehicle.

    Click image to see an enlarged view

    Fig. View of the idler pulley (1), tensioner (2) and fan blade (3)

  10.  

To install:


WARNING
When installing the accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction..

  1. Position drive belt over all pulleys except idler pulley. This pulley is located between generator and A/C compressor.
  2.  
  3. Attach a socket/wrench to pulley mounting bolt of automatic tensioner .
  4.  
  5. Rotate socket/wrench clockwise. Place belt over idler pulley. Let tensioner rotate back into place. Remove wrench. Be sure belt is properly seated on all pulleys.
  6.  
  7. Check belt indexing marks.
  8.  

 
label.common.footer.alt.autozoneLogo