When I turn on my heater on there is a loud squealing noise coming from the engine. When I turn the heater off, it stops. It also squeals when I brake to turn. Is it the fan belt?
I have been having the same problem with the alternator belt squealing, most noticeably, when using the heater fan , accelerating, turning the headlights on. I have a 1997 Toyota Tercel CE 1.5L 4cyl with no A/C. I just tightened the belt tight enough that there is no give to the belt and it does not squeal anymore.
I also used a Goodyear Gatorback from Napa belt which seems to be nice and quiet when tight enough.
SOURCE: squealing NOISE possibly from fan belt
There are several things you should know;
1. Power steering belt, when you make a turn, sometimes make noise, because your car needs power steering oil,=transmission oil.
2. when you turn on AC then you can hear a loud noise, you must check AC compasser,If the head wheel frozen, it will make a lot noise, that you have to fix your AC compasser.
3.check these two first, if both ok. shot some wd40 or lubricate see if it's work.
Hope this can help you
SOURCE: Belt squealing when first started
The squeal when first started is most likely coming from the alternator belt. You need to have the tension of the belt checked to make sure it is properly adjusted. If you had a shop due it have , have them recheck it. Or stop by a local shop and they shouldnt charge you to check it. But its all in how you ask, if you go in and tell them your problem most likely they will try to get you for a fee to diagnose it.Just ask to have them check the belts and make sure there tight.If its ok, has anyone tried to fix your sqeul by spraying anything on it? if so your belt could be slipping from the lube they used. there is one more thing you can try, providing all the pullys/ tensioner pully if equiped are straight. If it is a serpantine belt(flat/multiple grooves) not A v-belt
when the engine is off,you take a tablespoon or so of corn starch, yes the stuff in the yellow box in the kitchen, and put it on the inside oif the belt. Its acts like a dry lube. I learned this trick at the GM dealership, from a factory bu;lliton. good luck
SOURCE: squealing NOISE possibly from fan belt
Belts stretch from new. Try to tighten them again. Hopefully the are not glazed or this may stay with you.
SOURCE: loud squealing from power steering pump - do I need new PS pump?
Hi Norman,
Sounds like the adjustment may not be correct on the power steering belt, with the tension not being enough, after you replaced the belt ?
Try giving it a little more tension, and go from there.
Hope I have been of help.
Good Luck !
John.
SOURCE: 2003 Lancer ES High pitch squeal and constant squeak
Check your belt tension, and look for belt dust on the alternator. Done plenty of Mitsubishis that need the Mitsubishi belt, or they squeal, plus alternators trying to lock up and causing a squeal.
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