Question about 2001 Volkswagen Beetle

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Belt keeps off slipping

Just replace a/c compressor and belt will not stay on

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Hi, The pulley is out of alignment. That is why the belt comes off.
Also check for interference where belt maybe rubbing on to.
Good luck.

Posted on Mar 21, 2014


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Hi I have just recently purchased a 54 plate xtrail and when I put the aircon on it whistles to me more prominent in the cab than outside

or It could be a slipping compressor belt. Get the pulleys as well as the belt checked and tightened/replaced if required. When the compressor starts, the initial load makes the belt slip and screech, which goes away once the compressor speed matches that of the belt or the driving pulley.

Dec 09, 2016 | Nissan XTrail Cars & Trucks

1 Answer

Belt replacement mazda3 2006

i do hope this helps its for the serpentine belt
First, jack up the caricon1.png, use jack stands, yadda yadda etc.

Remove the lower splash shield.

Youll see a skid plate looking thing on the ac compressor, remove that with a 12mm socket.

Now you have to remove the AC compressor. There are four stud/bolt things holding it on. Also 12mm.

Once the bolts are out the AC compressor is basically held up by the belt and the AC lines. Work the AC belt off of the pulley and then secure the ACcompressor out of the way. Dont let it hang by the AC lines.

Go back up to the top of the engine and remove the engine cover, it just pulls right off.

Youll see the serpentine belt and the tensioner pulley (basically the pulley at the front of the motor and right on top).

Note the routing of the belt for reinstallation.

Put a socket on the tensioner pulley (either 12 or 14mm) and push towards the firewall.

Youll see the belt loosen.

Now slip the belt off of the tensioner pulley.

You can release the tension on the pulley slowly now.

Work the serp belt off of the rest of the pullies.

Installation is basically the reverse of removal, but it can be tricky to route the belt on since its new and rigid. It helps to have a friend push on the tensioner while you route the belt. I managed to do it by myself, but I have long arms. It also took me several tries and much swearing!

Now putting the AC belt back on can be tricky due to the fact that it is a stretch belt, and will be very tight.

I slipped the belt on the crank pulley and then pulled the AC compressor up as high as I could. Then I could slip the belt on. Little note here, because the belt was so tight the compressor wouldnt slip back into position. I used my floor jack on the bottom of the compressor and very slowly pushed on it with the jack.

Then line up the AC compressor, resecure the bolts/nuts etc.

Reinstall splash shield.


Apr 03, 2013 | 2006 Mazda 3

1 Answer

I have a squeaking sound that I think is coming from the ac compressor. I noticed it stoped when I put on belt dressing and the pulley got wet. I heard the same sound coming from other monteros as well,...

once the belt become loose it slips and its friction surfaces become damaged .. even if its then tightened properly it may still slip .. an old damaged belt should be replaced and tensioned properly ... its common for older type belts to slip and make noise .. it is not as common in later cars since they often have automatic belt tension and improved belts .. any slipping is a sign of some other problem ... one frequently seen problem on some cars is a pulley that is spring loaded to keep the belt properly tightened .. the pivot on the pulley freezes up and no longer maintains proper tension .. those pulleys can sometimes be re lubed but often are hopelessly frozen and need replaced ... also other pulleys and the alternator bearings can start to make a squeaking noise when the sealed bearings lose there lube .. you can put a drop of oil on each bearing to see if one quiets the sound ..

Sep 17, 2010 | 2001 Mitsubishi Montero Sport 4WD

2 Answers

The AC system is making an purge noise not sure if when the compressor kicks on the belt slips or what because it only does it while driving not at idle. In the cab windows up sounds like purge widows down...

If it is a purge noise the highside pressure may be getting to high and relieving pressure.Usually this can occur if there is too much freon or a restriction in the ac system.The defroster utilzes the ac as well which is why you can hear this. From your description it sounds as if the compressor clutch bearing is going bad.

Jul 05, 2010 | 1999 GMC Sierra

1 Answer

Loose air conditioner component may break and

The only air conditioning component I can think of which could cause the serpentine belt to break would be the compressor. If you look under the hood you can see the belt winding around several pulleys of engine parts. The air condition compressor is the part which has two hoses with metal fittings and a wire harness attached to it. When the engine is on the pulley attached to the compressor should be rotating at the same speed as the other pulleys. Keep your hands, clothing and jewelry clear of all moving engine parts. If it is moving at the correct speed it is good, if it is not moving correctly it will cause the belt to slip creating friction until the belt breaks. Once the belt breaks the engine cooling, power steering and battery charging will stop, which will quickly cause the engine to stop working. This could cause engine damage, but it will defiantly strand you with a broken vehicle. If the pulley is working and the air conditioner is working, do not worry about it, but you may want to check the belt with the engine off for cracks or damage. If the belt is slipping and the air condition is not working, the vehicle will need a new compressor, coolant, and possibly a dryer. This could set you back about three hundred dollars. If you do not want to fix the air conditioning and the belt is not slipping run the vehicle as usual if the belt is good. If you do not want to fix the air conditioning and the belt is slipping you may be able to bypass the compressor and use a smaller belt.

Jul 02, 2010 | 2005 Ford Taurus

2 Answers

Power steering stops when I turn on the air conditioning

YES. or the belt may be slipping. does the a/c work? if the belt is tight and the a/c does not work, then the a/c compressor is trying to sieze and will need replacement. if you dont need the a/c disconnect the wires to it.

Sep 19, 2009 | 2000 Chevrolet Tracker

1 Answer

Put new water pump on, cannot get belt back on

Unbolt the pulley from the water pump, slip the belt over everything and refasten the the pulley to the pump while the belt is draped over it. Then tighten up the belt.

Mar 13, 2009 | 1999 Nissan Sentra

1 Answer

A/C on 1988 Mercedes 190E fan squeaks and does not function

Assuming your compressor tries to turn but squeaks due to the lack of tension on your belt. Belt maybe stretched to far for the tensioner to keep it tensioned. If so, replace belt ('88 model should be single belt if multi belts adjust tensioner). If belt slips because A/C compressor doesnt want to turn when clutched in, that should mean A/C compressor seized and needs replacing.

Jul 22, 2008 | 1989 Mercedes-Benz 190

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