2005 Jeep Liberty Replace Serpentine Belt

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The serpentine belt on the 2005 Jeep Liberty runs all of the pulleys on the front of the engine. The pulleys, in turn, run all of the engine accessories, such as the alternator, power steering pump, crank shaft, water pump and the air conditioner pump. If the serpentine belt is not installed correctly, it will cause the engine accessories to run backwards and this can cause significant damage to the engine. You can replace the serpentine belt on the 2005 Jeep Liberty yourself correctly in about a half an hour or so.

[edit] Tools Used

Tools
Pull bar
15-mm socket
New serpentine belt

[edit] Replace Serpentine Belt

  • Pop the hood on the 2005 Jeep Liberty and locate the serpentine belt routing diagram on top of the fan shroud, above the radiator. The serpentine belt diagram will be a sticker that shows the pulleys with the serpentine belt routed around them--these are instructions on how to correctly route the new serpentine belt across the pulleys. If there is no diagram, take a pen and a notepad and draw out the belt routing diagram exactly as you see it on the pulleys, before removing the belt.
  • Locate the serpentine belt tensioner on the front of the engine. The belt tensioner will be in the center of the engine in the front. The serpentine belt will be routed under the belt tensioner instead of over it. The belt tensioner also has a pulley with a 15mm bolt head in the middle of the belt tensioner pulley.
  • Place the 15-mm socket onto the pull bar and then place the socket onto the 15-mm bolt head in the center of the belt tensioner. Turn the belt tensioner clockwise (to the right) to relieve the tension on the belt.
  • Slide the belt off of the belt tensioner pulley. Release the belt tensioner so that it returns to its normal position, then remove the belt from the rest of the pulleys.
  • Install the new serpentine belt by first placing the belt across the crankshaft pulley, on the very bottom. Then follow the serpentine belt diagram for routing the belt across the remaining pulleys. Be sure to leave the belt tensioner pulley for last.
  • Place the 15-mm socket and ratchet back on the belt tensioner and turn it clockwise, then slide the belt under the belt tensioner pulley. Release the belt tensioner pulley so that it tightens up against the belt. Inspect to make sure that the belt is completely seated into each of the pulleys, and that the belt is evenly positioned under the belt tensioner pulley.
  • Crank the engine and inspect the belt to make sure that it stays on the pulleys and that the belt is still evenly positioned under the belt tensioner pulley. Let the engine run for about one minute, then shut the engine off and shut the hood.

[edit] Tips & Warnings

  • Leaving the belt tensioner pulley for last makes it easier to slide the belt under the pulley when relieving the tension from the belt tensioner.
  • If the belt is not completely seated into the pulley grooves, it can come off while you are driving, causing the engine to stop and leaving you stranded.
  • Always remove the keys from the ignition while working on the serpentine belt, in case someone might accidentally crank the engine.
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