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My 2002 Hyundai Elantra has started to make strange squealing noises that seem to be coming from the passenger's side under the hood. I believe it sounds like a belt of some sort, and may have something to due with using the heater. I also recently noticed that when I drive below 20 mph the squealing is more frequent, and also causes the lights to dim slightly, and the power of the ac to scale down slightly as well. Usually, when I speed up over 25 mph, the noise stops altogether, the lights brighten, and the ac power restores. Any ideas?
Yes...your engine belt is little bit lose that's y its causing noise...and hope when u speed up..it will stop squealing ..right?? so just tight your engine belt little bit and it will solve your problem in a min...take care n have a safe journey...n also if it help...rate it plz
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Year make and model ?? The belt could be glazed and slipping even if it is tight. You could have a weak belt tensioner too. The noise when the ac or heat is turned on can be the extra load from the ac compressor or the alternator. The compressor cycles on and off especially in defrost mode. The load from the alternator is the first noise of the day. As the belt warms up it becomes better at handling the load of the accessories. Even tho the belt looks fine, you may have to replace it to get rid of the noise.
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.
Possible solution may be a new serpentine belt. When you turn the steering wheel it is an added torque/tension against the belt from the power steering drive pulley. A worn and dry belt may tend to squeal as the extra grip on that pulley is applied. You would have to pinpoint just where the squeal is coming from to be sure the power steering pump is the origin of the noise. There may also be other reasons if its due to a worn out belt, idler and tensioner pulley's could be making noise as well.
No this is normal. This whine you hear is the fuel pump turning to pump fuel. Try not to run it under a 1/4 of tank to much though because if you do and you run out of fuelit can burn the fuel pump out. Chris J.C. Towing
hi, the first thing i would have said the fault was was going to be a fan belt/ alternater belt if this is to loose or to tight then this can give you the noise you are hearing, one way of finding out if its a belt making the noise is to go out and get a spray like wd40 and then spray this on the belt then if the noise goes away you then know that its that belt causing you the problem.
If the belts have not been replaced recently then this could be the cause of your problem, spray the belt with a spray or even soapy water then give you car a try if your using soapy water make sure you get the whole belt wet then try the car if the noise is then gone you know the belt is at fault.
If you have power steering then low power steering fluid can cause the power steering pump to squeek so check the level and fill it up to the highest mark then start the car and turn the wheel fully left then fully right then back to the middle then check the level again. Low steering fluid can cause the noise you hear.
If after doing this its not the belt making the noise and neither the power steering pump then the only thing left that could cause the noise you are having is a dry bearing on one of the pulleys now this could be the alternater pulley or power steering pulley basically any pulley that the belt is running on could be causing you the noise you hear. To stop the noise you need to buy a spray oil or spray lube then give these pulleys a good spray all around where the bearing is in the middle if the bearing gets to dry it can sieze and cause you loads of problems so go and buy a spray lube and give all of the pulleys a good spray at the front and the back try and get it in towards where the bearing is in the middle this should then stop the noise that you are hearing.
you can spray wd40 on the pulleys but remember this isnt a oil or lube it will just stop the noise for a couple of minutes so you could tell witch pulley is causing you the problem your better of buying a proper spray lube and give all the pulleys a spray where the bearing is in the middle this should then solve any noises you hear.
Make sure you check the engine oil level to rule out the noise coming from the inner workings of the engine ok
Let me know how you get on or if you need further assistance ok.
Easiest way first.....if the belt is squealing (at idle), spray it with belt dressing or WD-40.....if it stops....may be the belt or the bearings in the alternator....if it continues only with driving.....brake wear indicator letting you know...brake job due!
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