Testimonial: "Obviously I Do Not have the money and the Means to tow my car to a shop. Hence the necessity for doing it myself. I asked for diagrams, not an unhelpful opinion."
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there is no spring tensioner on some of the 3.0 engines. See instructions below. I will paste a pic on the version that DOES have a tensioner at the bottom of this post.
3.0L Engine-Except SHO ALTERNATOR BELT WITHOUT AUTOMATIC TENSIONER
Loosen the adjusting arm and pivot bolts.
Turn the alternator belt adjusting screw counterclockwise until the old belt can be removed.
Remove the belt.
Install the new belt over the pulleys. Check that all the V-grooves make proper contact with the pulleys.
Adjust the belt tension, then tighten the adjusting arm and pivot bolts.
3.0L SHO Engine ALTERNATOR BELT
See Figure 2
Loosen the nut in the center of the idler pulley.
Loosen the idler adjusting screw until the old belt can be removed, then remove the belt.
Install the new belt over the pulleys in proper contact with the pulleys.
Adjust the new belt to specifications as follows: Turn the idler pulley nut to the right to tighten the belt to a specification of 220-265 lbs. (980-1180 N). Torque the idler pulley nut to 25-37 ft. lbs. (34-50 Nm).
POWER STEERING AND AIR CONDITIONING BELT
See Figure 2
Remove the alternator belt.
Loosen the nut on the tensioner pulley.
Turn the belt adjusting screw on the tensioner counterclockwise until the belt can be removed, then remove the belt.
Position the new belt over the proper pulleys, making sure the V-grooves are properly seated.
Install the alternator belt.
Adjust the power steering and air conditioning belt to a specification of 154-198 lbs. (690-980 N) with a belt tension gauge.
Adjust the alternator belt.
3.0L Engine (Except SHO) and 3.8L Engine VEHICLES THROUGH 1993 WITH AUTOMATIC TENSIONER
See Figures 4 and 5
Insert a 1 / 2 in. breaker bar into the square hole in the tensioner.
On the 3.8L engine, the tensioner has a1/2in. square hole cast into the rear of the tension arm directly behind the pulley. On the 3.0L engine, the1/2in. square hole is cast into the spring housing on the front of the tensioner.
Rotate the tensioner clockwise and remove the belt.
Fig. Fig. 5: 3.8L belt schematic-1993 shown
Install the drive belt over all the pulleys, except for the alternator pulley on the 3.0L engine for vehicles through 1992, or the idler pulley for 1993 3.0L vehicles.
Rotate tensioner counterclockwise and install the belt over the alternator pulley. Make sure that all the V-grooves make proper contact with the pulleys.
On the 3.0L engine, install the alternator belt for vehicles through 1992.
For 1993 3.0L vehicles, install the drive belt over the idler pulley.
you have a pulley locking up that is breaking belt. with belt off spin pulleys by hand and feel for anything abnormal. wobbles, sticks or bind. due this for all pulleys ran by that belt u will find your problem
your car may have information around in engine comparment is a diagrama of the belt how to put it back on. you have to have a tensioner pulley witch you gatta use a tool to depresset the tension so the belt fit right