Yes, if the belt tension is not tight enough it won't spin the radiator fan due to slippage. Replace the tensioner pulley.
this should be spring loaded self adjusting if not tensioner is bad.
The early 4.7 engine in the grand cherokee,dakotas,and rams have had problems with cylinders on the rear left of the engine,starting with a knocking then overheating and seizing .
Failed water pump bearing.
The fan belt that you need will be determined by your make and model and can be had by going to a reputable parts store and just telling them what you are looking for. You probably won't find a belt at Walmart types of places. On this forum you will find information about the belt tensioner pulley and how to change out the belt.....its an easy job but you need a ratchet and a socket of the size that will fit the nut on the front of the tensioner pulley.....you use the ratchet to release the tension on the belt so that you can slip the belt over the tensioner pulley, the last step in the process. Sorry, I don't know what size that socket is but the parts store may. By the way, the tensioner pulley is the only pulley in that mess that doesnt actually drive an engine device (such as the AC, fan, alternator etc). It is spring loaded and keeps the serpentine belt under tension so that all the other things work correctly. This is a job that anyone can easily do but it does help to have someone there to help you: one to push on the ratchet and the other to slip the belt over the tensioner pulley. Good luck
With two special tools, a slim 36mm wrench and a spanner to hold the pulley.
Loosen the tensioner pulley. Put the belt around the alternator pulley and the tensioner pulley. Move the tensioner pulley to the right until the belt is tight. Tighten the tensioner pulley.
Put a ratchet on the tensioner pulley bolt... set your ratchet on "loosen" turn the tensioner pulley and assembly upword... hold it there and remove the belt... DO NOT LET GO OF THE RATCHET AFTER YOU REMOVE THE BELT slowly let the tensioner pulley move back to a resting position...
it has a manual tensioner
Should have an automatic belt tensioner -perhaps it is defective I don't think there is a belt tensioner. Belt tension is adjusted at the power steering pump bracket and idler pulley assembly.
Yes, on a 3.3 or 3.8 the serpentine belt pulley does come off the tensioner arm but the bolt is left thread not right handed.
this should be spring loaded self adjusting if not tensioner is bad.
When the tensioner pulley is frozen and u need to change the belt the only possible thing you can do is cut the old belt and replace the belt tensioner pulley, theres no other possible method.
This is a serpentine belt that runs all of the pulleys on the front of the engine. There is a separate tensioner pulley and not one for the water pump alone. A bad tensioner will allow the serpentine belt too much slack which will allow the belt to slip and yes, the engine can overheat as a result.
its a pulley fan, it never goes bad
What device is it attached to?
If its the 3.4L it has an automatic tensioner. look right under the alternator and there is a pulley. That pulley and arm is the tensioner. To release the tension, there is a bolt on the inside of the pulley, put a wrench on it and pull like you are trying to tighten the bolt. The arm is spring loaded and will pull up, releasing tension.
The early 4.7 engine in the grand cherokee,dakotas,and rams have had problems with cylinders on the rear left of the engine,starting with a knocking then overheating and seizing .