Best Answer

Try tightening the mounting bolt on the idler and/or tensioning pullies. This did the trick for a persistent squeek on my 93' Jeep Wrangler.

On some cars, the idler pulley {usually on the belt tensioner) can squeal. If you squirt some WD-40 or similar lubricant on the front of the bearing (engine off), and the noise goes away, it is probably the bearings in the idler pulley. If this is the case, replace the idler pulley, because the noise will come back after the lubricant gets slung out of the bearing.

I also have a Plymouth Laser, I had the same problem and tryed the same things. If the above answers don't seem to work, look at the water pump. In the water pump there are ball bearings the keep it spinning smoothly and when the casing of the bearings give way, the bearings no longer glide over the surface, instead they bunch up and rub against the back of the pulley. If this is the case, you will be able to see the bearings behind the pulley.

User Avatar

Wiki User

βˆ™ 2015-07-16 19:32:18
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: How do you stop an alternator belt from squealing on a 1993 Plymouth Laser 20 L non-turbo when you have already replaced the alternator and belt several times and checked the tension on the belt?
Write your answer...
Still have questions?
magnify glass
Related questions

What causes Pontiac Grand Prix to squeal?

I actually was suprised my grand prix was squealing and it was the alternator. I got it replaced and it has stopped.

What else could cause squealing sound replaced idler pulley and alternator and still makes sound?

I think we figured it out. Believe it is the throw out bearings.

Why Squealing noise after 98 infinti i30 alternator replacement?

My 2000 130 had the same problem. I took it back to the shop and it was determined that my belt needed replaced. It is perfect now. I neglected to ask how it could be the belt considering the fact that it didn't squeek before the alternator died.

How do you adjust the alternator belt in a 1997 Honda Accord to make it stop squealing even when it seems to be tight enough?

Because the alternator puts a load on the engine of several horsepower, the belt must be very tight. However, if it is too tight, the bearings of the alternator shaft will wear out quickly. To tension the belt properly, adjust until there is about 1/2 inch of play in the center of the longest span. If this does not stop the squealing, the belt may have been glazed from being too loose, and needs to be replaced.

Can an internal voltage regulator be replaced on a 1996 jeep grand Cherokee or does the alternator have to be replaced?

The regulator is in the engine computer not the alternator.

Can a 95 Plymouth neon window be replaced by a 96 Plymouth neon window?


How do stop a 2002 Ford Taurus from squealing?

"Squealing" is usually from the belt or brakes. use belt conditioner to stop a squealing belt.(usually sold at walmart) you can probably figure out how to stop squealing brakes. but if not they need to be replaced. people need to start reading those owners manuals the car comes with.

Why is your serpentine belt still squealing after being replaced?

I'm not much of a mechanic but, it may be too loose.

Alternator diode location?

Inside the alternator, some are easily replaced and some are soldered in place.

How much money is an alternator?

We replaced the alternator on 2 different vehicles. It was around $175 for each.

What could be wrong if i replaced the alternator and battery and still wont hold a charge?

Inside the alternator

How often does an alternator need to be replaced?

In most cases an alternator will last well over 100,000 miles

People also asked