Question about 2000 Nissan Xterra
Serpentine belts?....yes. Absolutely. Timing belts...no. Drive belts should be tight, but not too tight. If too tight, it could cause noise because of the pressure put on the affected pulley bearings. Too loose can cause poor charging of the alternator, lose of power steering when the wheel is cut to much either way, or squeeling.
Posted on Nov 14, 2010
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Posted on Jan 02, 2017
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Nov 03, 2013 | 2008 Dodge Caliber
Fig. Fig. 6: Loosen the pivot bolt ...
Fig. Fig. 8: ... slip the old belt off and install a new one
Fig. Fig. 9: Pull outwards to tension the belt
Fig. Fig. 10: Belt routing on the 20R, 22R and 22R-EC engines
Fig. Fig. 11: Belt routing on the 4ME, 5ME and 5MG-E engines
To adjust the tension of the alternator drive belt on all models, loosen the pivot and mounting bolts on the alternator. Using a wooden hammer handle, a broomstick or your hand, move the alternator one way or the other until the proper tension is achieved.
WARNING Do not use a screwdriver or any other metal device (such as a prybar) as a lever.
Tighten the mounting bolts securely. If a new belt has been installed, recheck the tension after about 200 miles (480 km) of driving.
Air Conditioning Compressor
A/C compressor belt tension can be adjusted by turning the tension adjusting bolt which is located on the compressor tensioner bracket. Turn the bolt clockwise to tighten the belt and counterclockwise to loosen it.
See Figures 12
To adjust the tension of the air pump drive belt, loosen the adjusting lever bolt and the pivot bolt. Move the pump in or out until the desired tension is felt.
The tension should be checked between the air pump and the crankshaft pulley on cars without air conditioning. On cars with A/C, the tension should be checked between the A/C compressor and the crankshaft pulley.
Fig. Fig. 12: Moving the air pump to tension the drive belt
Power Steering Pump
Tension on the power steering belt is adjusted by means of an idler pulley. Turn the adjusting bolt on the idler pulley until the desired tension is felt and then retighten the lockbolt.
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Fig. Fig. 5: 3.8L belt schematic-1993 shown
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