Jeep WK Grand Cherokee Serpentine Belts

By Jeep Experts

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Under regular use, the serpentine drive belt needs to be inspected at round 45,000 miles or after 3-4 years of service. If not changed presently, the belt needs to be checked every further 12 months or 15,000 miles. Under extreme and off-road situations examine the belt yearly. When diagnosing serpentine drive belts, small cracks that run throughout ribbed floor of belt from rib to rib are thought of regular. These usually are not a motive to interchange the belt. However, cracks operating lengthwise alongside a rib (not throughout) usually are not regular. Any belt with cracks operating lengthwise alongside a rib needs to be changed. Also change the belt if it has extreme put on, frayed cords or extreme glazing.

Warning: Spring tensioners shouldn’t be disassembled due to excessive spring stress. The tensioner unit is serviced as an meeting.

3.0L V6 diesel engine:

3.0 Engine belt routing and tensioner launch location

 

3.7L / 4.7 V8 engine:

3.7L / 4.7 engine belt routing and tensioner launch location

 

5.7L / 6.1 V8 engine:

5.7L / 6.1 engine belt routing and tensioner launch location

 

Belt elimination:

NOTE: If something differs between the images proven above and the Belt Routing Label (situated within the engine compartment), use the schematic on the Routing Label.

CAUTION: DO NOT LET TENSIONER ARM SNAP BACK TO THE FREEARM POSITION, SEVERE DAMAGE MAY OCCUR TO THE TENSIONER. SLOWLY RELAX THE TENSION BACK TO THE STOP POSITION.

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1. Disconnect detrimental battery cable from battery.

On 3.0L engines, use a 12 level, 17mm socket and an extended deal with ratchet (3/8″ drive) to rotate the accent drive belt tensioner (5) counterclockwise till it contacts its cease. Remove accent drive belt. Slowly rotate the belt tensioner again into its freearm place.

On 3.7L and 4.7L engines, use a 15mm socket wrench to rotate belt tensioner clockwise till it contacts its cease. Remove belt and slowly rotate the tensioner into the freearm cease place.

On 5.7L and 6.1L engines, take away the air consumption tube between consumption manifold and air filter meeting. Using a 3/8″ sq. drive ratchet finish, launch the belt stress by rotating the tensioner clockwise. Rotate the tensioner till belt will be faraway from pulleys. Remove belt and gently launch tensioner.

Belt set up:

3.0L engines – Position accent drive belt round all pulleys besides the loafer pulley. Rotate the belt tensioner counterclockwise till it contacts its cease place. Route the accent drive belt across the loafer (8) and slowly let the belt tensioner rotate into the belt. Make certain the belt is seated onto all pulleys. .

3.7L and 4.7L engines – Route the belt round all pulleys besides the loafer pulley. Rotate the tensioner arm clockwise till it contacts its cease place. Route the belt across the loafer and slowly let the tensioner rotate into the belt. Make certain the belt is seated onto all pulleys. Inspect the complete belt path to verify belt is correctly routed and all V-grooves make correct contact with pulleys.

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5.7L and 6.1L engines – Position the drive belt over all pulleys aside from the water pump pulley (7). Rotate tensioner clockwise and slip the belt over the water pump pulley. Gently launch tensioner. Make certain the belt is seated onto all pulleys. Inspect the complete belt path to verify belt is correctly routed and all V-grooves make correct contact with pulleys. Install the air consumption tube between consumption manifold and air filter meeting.

Reconnect detrimental battery cable to battery.

On 3.7L and 4.7L engines, the tensioner is supplied with an indexing tang on again of tensioner and an indexing cease on the tensioner housing. If a brand new belt is being put in, tang should be inside roughly 24 mm (.94 inches) of indexing cease. Belt is taken into account new if it has been used quarter-hour or much less.

 

 

WK Serpentine belts
Engine Part # Model Year MSRP
3.0L P/N 4891587AB 2007-2008 $93.60
3.7L / 4.7L P/N 4892791AA
outdated by
P/N 53013905AA
2005-2007 $63.70
3.7L / 4.7L P/N 68027636AA 2008-2010 $30.85
5.7L P/N 53013676AC 2005-2008 $54.60
5.7L P/N 4593684AA 2009-2010 $54.10
6.1L P/N 5037542AA 2006-2010 $26.25

 

 

(Prices listed are for reference functions solely and will differ by supplier. MSRP costs are present as of March 2012. Parts usually are not accessible from this web page.)

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