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When i start up i get a squeal it sounds like the belt

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Try to put belt lubricant ,check belt for cracks, change belt if it looks bad ,if the noise still persist the next thing to look at is your tensioner or the idle bearings the bearings go bad too

Posted on Mar 22, 2011

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1 Answer

My car makes a loud squealing sound when i start it


Mary,

This type of problem is best checked by a trusted mechanic. I doubt you'd hear squealing noises from the crankshaft or harmonic balancer; but it is likely to be heard from a belt tensioner pulley, water pump (or other belt-driven devices under the hood - such as the alternator, power steering pump, etc.). A loose or slipping belt can also cause this noise.

Spraying WD-40 on the source of the squeal may quiet the sound - but not solve the problem that is causing it. By simply masking the problem with WD-40 instead of fixing it - you run the risk of the squealing part failing catastrophically - probably at the least desirable place and time.

For your own safety and convenience, have this problem checked and repaired properly.

Good luck!

Feb 02, 2016 | Cars & Trucks

1 Answer

I have a loud squealing noise upon starting the car. the squealing normally lasts about 30-45 seconds. sometimes the noise will appear aftrer pulling off from a stopped position, as well. all belts


Try to tighten the belts a little firm.Sounds like when engine idling no squelling only when about to take off .Some times belts may seem ok on the outside but if you look on inner side you tend to see cracks in the belts .

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Hi JoAnne,sounds like your belt is squilling,here's a link to the belt adjustment or removal.

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Replace the crank pulley before it costs you an arm and a leg. It has caused this problem. don-ohio

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2002 Mercury Cougar Squeal


Just for testing, a few seconds, will the vehicle start and run w/o the belt? Have a helper work the throttle, is the sound gone? If problem not the belt, check the belt driven accessory. Sometimes you can use a long metal rod of some kind, with belt on, one end of the rod touches accessory housing, the other end goes on that bone behind your ear, helps to magnify the sound. I guess you could use a mechanics stethoscope to do the same thing. Have helper work the throttle while you listen to each. Don't get tool or anything caught in belt. This is a serpentine belt, I haven't looked?
Maybe an accessory trying to freeze up or bad bearing? I can't think of anything else at the moment?

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At startup, amp gage low, lights flicker. belt squealing. then after warm up, gage normal no squeal. alternator bad? Use to do when blower motor on now all start ups.


Thats what it sounds like. That would cause all your problems. You could start the jeep and then take your hot side battery terminal off. If it dies asap, your alternator is bad. Hope this helps. Best of luck.

Feb 06, 2011 | 1995 Jeep Cherokee

1 Answer

AnWhat causes a loud squealing sound when I start the engine and/ or turn on the defroster?


will try to assist you. the loud squealing is most likely a belt thats loose. when you start the engine it squeals for what?30seconds? when you turn the heater on it puts a drag of power from your engine and the engine is trying to compensate. so it [engine] asks for power,puts drain on engine and the loose belt squeals.a loose belt will squeal,simply because it's trying to do it's job.but loosing traction. so it squeals. check for play in belts with engine off of course. grab each belt by hand. if it has more than1/4 inch play or [slack] it needs adjustment,or replacement. hope this helps! thank you for choosing fixya.com we are here for you 24/7 7days per week! good luck!!

Jan 13, 2011 | 2002 Nissan Maxima

1 Answer

Squealing sound


have the belts tightened or replaced as they are slipping on the pulleys by the sound of it

May 12, 2009 | 2000 Suzuki Grand Vitara

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My 97 tercel has also starting squealing when cold-but only when I reverse.


Squealing, like a belt? I've found that the alternator belt has to be super-tight or else it squeals. It's a pain in the **** to torque the alternator sideways enough to tighten the belt.

If it is a belt, you could also buy some belt dressing spray and see if that helps. It's pretty cheap stuff per can.

Regards,
Weasel5i2

Apr 22, 2009 | 1997 Toyota Tercel

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