Question about 2005 Kia Optima

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Theirs a loud noise coming from my ac unit or pump on my 2005 Kia optima sounds like maybe bearing Would u know what it might be

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It’s possible your a/c gas level is low. Either take it to a regassing place and have them check it over or locate your high and low pressure gassing valves along the a/c pipeline (preferably the low pressure) remove the cap and quickly press the valve down, if gas shoots out, it’s possible the a/c compressor is failing, if no gas shoots out, it’s probably lack of gas.
If you are mechanically inclined, remove your v-belts/drivebelt and spin the a/c compressor. If the bearing is bad you should be able to feel it

Posted on Mar 01, 2019

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Well there will be a beating in the free wheeling pulley when the ac unit is not running.If the pulley is free wheeling then it could be the bearing.

Posted on Feb 14, 2019

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Posted on Jan 02, 2017

Molson02536
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SOURCE: I HEAR A LOUD WHINNING NOISE FROM UNDER THE HOOD

Yes there is a bearing in the AC clutch assembly, and the bearing can be changed with out swapping out for a whole new AC compressor unit or even taking the unit out. 
The other thing to you may want to check is the Serpentine belt tensioner. The tensioner then to break apart and or when the clutch activate put's more pressure on the system and the idler pully bearing could alsy be the problem. 
Spray some water on the fan belt whale the engine is running and see if the noise goes away and comes back as the water dry's. If the noise goes away then it's just a worn belt and need to be changed or you may want to do the quick fix and buy Fan belt dressing. 
Good luck and hope this helps

Posted on Apr 09, 2009

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SOURCE: 01 kia optima stalled and wont start...starter just clicks

It seems the starter is playing up.First check if your battery is charged fully or try to jump start and see what happens.If the engine start then it's either you need a new battery or else you need a replacement alternator.Test using a voltmeter if the actual altenator is working.Finally the last option is the starter motor that needs changing or fixing...Hope this helps.

Posted on Jul 03, 2009

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SOURCE: My 2005 Taurus started making a noise. It sounds

Have someone check it, the noise may be your a/c compressor clutch. Or it may be as simple as needing a new serpentine belt. I would have it checked by a mechanic first, then go from there.

Posted on Jul 29, 2009

  • 136 Answers

SOURCE: may headlights went out on my 2005 kia optima

It could be a fuse bad connection to the lamps or the switch itself

Posted on Nov 06, 2009

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SOURCE: everytime i turn the steering wheel i hear a loud

clunking noise may be bad steering rack. either the bolts that hold it to the frame may have worked loose,the center of your vehicle is where the steering racks located,just under the center of floorboard.under dash but on floorboard.make sense? try turning the steering wheel with engine running,place your hand under the radio,but on floorboard,when you turn the steering wheel from side to side,do you feel a thump? if so,then your steering racks loose or bad. the only way to know for sure is to have someone who knows about the steering rack to inspect it visually. thank you for choosing fixya.com

Posted on Apr 03, 2011

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1 Answer

Kia optima 2008 car had a knocking noise checked no oil on stick put oil in car still had a loud sound do you think the motor has blown


No you have worn the bearings out and need a rebuild of the crankshaft and probably the cylinders and pistons and at worst the cylinder head due to the pistons hiting it or the valves

Dec 29, 2016 | Kia Cars & Trucks

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What size belt will i need when eliminating the ac unit on 2005 kia optima


they will tell you in the spares shop as it will show in the listings for the vehicle as no AC ,remember that cars sold in the UK and norway ect dont come with AC its a expensive add on on new cars sold in these climes

Sep 02, 2014 | 2005 Kia Optima LX

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2005 kia optima abs& brake light ON


Try the master cylinder if that's not it try the brake booster, but first bleed all the brake lines starting with the driver rear then move forward if no pedal then proceed to master and booster

Jan 04, 2014 | 2005 Kia Optima

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Kia 2.4 optima 07 engine makes knocking noise when I press fuel pad to move..I can't press fuel pad strongly the knocking noise increases more and may broken the rings


Sound like you have spun a bearing do to a blown head gasket. Does the oil on the dipstick look almost like a chocolate milkshake in color? If so your coolant has reached the oil pan and that can definitely cause the engine to spin a bearing causing a loud knocking sound.

Apr 03, 2012 | 2007 Kia Optima

1 Answer

Loud engine noise from the genarator or waterpump area


Does it sound like a squealing, a humming, or some other friction related noise? If so, it could be the alternator or the water pump bearings going out. But do let us know what the noise sounds like!

Dec 22, 2011 | 2004 Kia Optima

2 Answers

2002 kia optima,,, whining noise that stops when turning left


power steering pump probably went out.. if you can easily get at the belt and are any kind of mechanically inclined, remove the drive belt to the p/s pump and then start the car if the noise is gone then its probably part of the power steering pump

Mar 25, 2010 | 2002 Kia Optima

1 Answer

'05 Kia Optima - Motor dies while driving - no


It could be that the fuel pump is dying .

Jan 18, 2010 | 2005 Kia Optima

2 Answers

Drive Belts Squeaking


First off, how many miles do you have on this engine?Since you changed the belt and still have the noise,you have one of your pulleys making this noise.Usually it's the ideler tensioner pully.Take the belts off.Turn the pulleys by hand including the alternator pulley.if you hear the slightest faint noise there's your problem.repalce the part or the pulley. A lot of times the alternator pulley does this,the front bearing or the rear bearing as well will make these nasty squeals.Find an auto electric shop that rebuilds alternators and have them replace the bearing for you,while your at it service your unit,it will save you in the long run.

Jul 23, 2009 | 2003 Kia Optima

1 Answer

2001 Kia Optima - Train sounding noise underneath


Sounds like the bearings are going out in the rear hub(s). Drive the car for a few miles (if it is safe to to do). Park it and check to see if the wheels are warm, or even hot, in their center cap area. This will indicate excess friction from bad bearings. Replace the whole hub. It's an easy DIY job, if you are so inclined. Part cost should be just over $100. per axle. Shop around to find a good price. I recommend Timken hubs. best of luck.

Feb 03, 2009 | 2001 Kia Optima

2 Answers

2006 kia optima


Could be the brakes . could be the serpentine belt on one of the accessories. Like the air conditioner pump or the alternator.

Mar 16, 2017 | 2006 Kia Optima

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