Sounds like a belt is slipping.
The 1998 Dodge Dakota tensioner pulley will be the top pulley on the left-hand side of the engine. The tensioner pulley will be able to slide back and forth.
Glazed or slipping fan beltBad pulley driven accessory (alternator or water pump)
You don't. The pulley is pretensioned by the manufacturer. If the belt tension is incorrect, the pulley must be replaced.
98% of the time it is the tensioner or idler pulley. With engine off take WD 40 with that little plastic tube & spray the back side of either one, idler or tensioner pulley, not both. Take a drive & if you still hear the belt noise then it is the pulley you didn't spray. The tensioer pulley is replacable on most dakotas. When you remove the belt the tensioner should have strong spring action & move smoothly. If it does then just replace the pulley. Some places will try to sell you the whole tensioner.
I assume you mean the idler pulley on your timing assembly, if this is the case then the belt is too tight loosen tensioner pulley. if you mean the automatic tensioner pulley for your alternator and A/C and the like, the you probably need a new tensioner] Good Luck
The pulley has probably gone bad. This is very common for Caravans. Try having the pulley replaced and see if that solves the problem.
Belt dressing if the belt is in good condition. Make sure that it is not a pulley squeaking and if the belt is in bad shape replace it.
If the squeaking sound is heard only when the ac is on, the ac pulley may need a little bit of WD-40 sprayed on it.
I have a 2004 c230 and I had a squeaking noise when the engine first started. It was my water pump with uneven wear on the water pump pulley that was causing the sound. I will tell you it could be many different things, but this was my reason.
When It no longer hold proper tension if the belt is squeaking then it is probably time to change it
The water pump should only be replaced when you hear signs of the pump failing, i.e: bearings on the pulley are squeaking.
Timing cover