aamerh Posted July 10, 2008 Report Share Posted July 10, 2008 Sometimes when I start the AC on my car I hear a sharp squealing sound. After a little while or giving it alot of gas the noise goes away the rest of the drive. Is this just a loose belt and if so how can i tighten it myself? Its a 2.5 thanks for any help Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 10, 2008 Report Share Posted July 10, 2008 Make sure your belts are in good condition first. The tension should be at 1/4 of play for every 6 inch span between 2 pulleys. Then you can buy some belt dressing like this one. Spray that on while the car is running. The belts are very easy to tension, one above and one below, just screw in until you have the proper tension. -Steven Quote Link to comment Share on other sites More sharing options...
aamerh Posted July 10, 2008 Author Report Share Posted July 10, 2008 thanks for the help. I'll get a can of the dressing then try everything soon. Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted July 10, 2008 Report Share Posted July 10, 2008 that answer would have taken atleast a month on the pissbucket Quote Link to comment Share on other sites More sharing options...
enginph Posted July 11, 2008 Report Share Posted July 11, 2008 I heard that belt dressings do nothing except making it worse. If the belt is old, it has to be changed! Quote Link to comment Share on other sites More sharing options...
latinopikachu Posted July 11, 2008 Report Share Posted July 11, 2008 yep Quote Link to comment Share on other sites More sharing options...
mts Posted July 11, 2008 Report Share Posted July 11, 2008 Hair spray is better than belt dressing... but only until you can get a belt. Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 11, 2008 Report Share Posted July 11, 2008 I used some belt dressing on my neighbors car (his belts werent in bad shape either) and it stopped the sqealing. I just installed new belts and used the dressing for protection and it conditions the rubber too. Quote Link to comment Share on other sites More sharing options...
ing-schu@online.no Posted July 11, 2008 Report Share Posted July 11, 2008 I've always regarded hairspray as fag equipment Prefer WD40 which I use on my old V-belt Hiace. Stops the sound like a month with my milage. Never any belt noise in the multi-V Xedos. All my belts were replaced at 90 k km*s. Quote Link to comment Share on other sites More sharing options...
MazdaMomma Posted July 12, 2008 Report Share Posted July 12, 2008 I've always regarded hairspray as fag equipment Prefer WD40 which I use on my old V-belt Hiace. Stops the sound like a month with my milage. Never any belt noise in the multi-V Xedos. All my belts were replaced at 90 k km*s. so would be something Lat would carry then? Quote Link to comment Share on other sites More sharing options...
ing-schu@online.no Posted July 12, 2008 Report Share Posted July 12, 2008 I wouldn't know maam. Maybe he's bald? Quote Link to comment Share on other sites More sharing options...
DoN_BLaZe34 Posted July 13, 2008 Report Share Posted July 13, 2008 You guys are hilarious. As already stated I would check to see the condititon of your belts. if they are not bad then try spraying them. if you can afford to then just change them. Quote Link to comment Share on other sites More sharing options...
colbylamb2006 Posted July 13, 2008 Report Share Posted July 13, 2008 my car was doing this, it was the timing belt tensioner that was squealing at startup....timing belt #2 and new mazda tensioner fixed that problem $670.00 later. Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 13, 2008 Report Share Posted July 13, 2008 To replace the belts it takes about $36 for the two belts at pep-boys and about 1 hour of work doing it for the first time. If it is the timing belt tensioner then its a completely different story. But if it only happens when he starts the AC then it cant be that. Quote Link to comment Share on other sites More sharing options...
DoN_BLaZe34 Posted July 16, 2008 Report Share Posted July 16, 2008 agreed Quote Link to comment Share on other sites More sharing options...
colbylamb2006 Posted July 16, 2008 Report Share Posted July 16, 2008 sorry, i read it like" When I start the car, the AC belt (accessory belt) squeals...that's what happened to me, sorry, but yeah I've heard somethings about belt dressings just making it better for a while and then getting worse. Quote Link to comment Share on other sites More sharing options...
aamerh Posted July 16, 2008 Author Report Share Posted July 16, 2008 yeah I think I'll just might have all the belts checked/replaced if needed... Quote Link to comment Share on other sites More sharing options...
mts Posted July 16, 2008 Report Share Posted July 16, 2008 Hopefully it is not the bearings in the compressor... but that would not go away... Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 16, 2008 Report Share Posted July 16, 2008 That would make a completely different noise wouldnt it? Like a grinding noise? Anyways changing your belts is good maintenance either way. Quote Link to comment Share on other sites More sharing options...
mts Posted July 16, 2008 Report Share Posted July 16, 2008 bearing squeal depending on how they are failing and the speed they turn... wheel bearings grind or growl normally as they are not high rpm, but the spindle on the AC compressor is turning quick... Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 16, 2008 Report Share Posted July 16, 2008 Oh ok, cause today we fixed a ball bearing from an alternator that was grinding and was all rusted out. Took it apart, WD-40'd it, repacked it with grease and back to normal. The alternator was still bad cause of a bad diode though. Fun day. Quote Link to comment Share on other sites More sharing options...
mts Posted July 16, 2008 Report Share Posted July 16, 2008 I would have changed that bearing, not just repacked it... usually the corrosion has impinged upon the race or balls and will fail soon after Quote Link to comment Share on other sites More sharing options...
///BHRpowered Posted July 16, 2008 Report Share Posted July 16, 2008 I half consider a drive in the millenia today Quote Link to comment Share on other sites More sharing options...
SteveSter Posted July 16, 2008 Report Share Posted July 16, 2008 Yea but from he said those bearing usually cant be found at NAPA because they only sell standard sized bearings not special ones for individual parts, so thats what we did as a trick to make it last a little longer, but there wasnt any rust in the bearing. Either way it didnt go on a car it was just an old one we took off of one of the practice engines in the shop, cleaned it up in the parts washer, sanded the contact points, diagnosed that one of the diodes was bad and put it back together. Quote Link to comment Share on other sites More sharing options...
mts Posted July 16, 2008 Report Share Posted July 16, 2008 It is good to get used to it, once you pull a bearing... it has to be changed. But any good electrical shop will have bearings for them.... Quote Link to comment Share on other sites More sharing options...
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