Subaru Legacy Forums

Subaru Legacy Forums (http://legacygt.com/forums/index.php)
-   Fourth Generation Legacy (2005 - 2009) (http://legacygt.com/forums/forumdisplay.php?f=10)
-   -   Squeal with Cold Start (http://legacygt.com/forums/showthread.php?t=101594)

Abandonhope16 12-08-2008 07:49 AM

Squeal with Cold Start
 
When its cold out in the morning, my LGT will squeal upon start. Its a noise I've heard before on other cars, but I can't think of the cause. I'm guessing some belts?
Ideas on cause and solution?
Thanks.

ehsnils 12-08-2008 08:30 AM

Check belt tension. It's often the alternator that requires more torque in cold weather and the belt slips.

uberwagon 12-08-2008 09:33 AM

http://legacygt.com/forums/showthrea...ghlight=squeel

?????

jagcars26 12-08-2008 10:11 AM

Quote:

Originally Posted by ehsnils (Post 2197085)
Check belt tension. It's often the alternator that requires more torque in cold weather and the belt slips.

Agreed.

darkfox1 12-08-2008 10:59 AM

if its the sound you hear other cars making when they start I agree with the others.

however if its different, you may have something else. I have sort of a squeal when I cold start my car but it sounds like a bearing going out and not a belt.

the belt squeal sounds like a tiny car spinning tires. :lol: (best way I could think of it.) is that what you're hearing?

bbjones121 12-08-2008 11:11 AM

I have a squeal. It is diffinetly not the belts. It comes from my clutch, whenever I start my car in the morning if it has been sitting for awhilel, as soon as I let the clutch out in neutral, it starts to squeal. I am going to post a questino about this. If you are having the same problem please find my thread.

Abandonhope16 12-08-2008 11:21 AM

It happens right as the car is turning/turns over. Hard to say if its like a tiny car spinning tires. It probably lasts about a second.

PeterJMC 12-08-2008 11:32 AM

I've been noticing some squeeling on startup lately. :(

corykg 12-08-2008 12:40 PM

Quote:

Originally Posted by bbjones121 (Post 2197308)
I have a squeal. It is diffinetly not the belts. It comes from my clutch, whenever I start my car in the morning if it has been sitting for awhilel, as soon as I let the clutch out in neutral, it starts to squeal. I am going to post a questino about this. If you are having the same problem please find my thread.

I've also heard this from my car a couple of times (really really cold day, like -10 f). I think I remember reading it is a clutch bearing squealing. It stops as soon as let the clutch in and out. Haven't talked to dealer about it.

darkfox1 12-08-2008 01:02 PM

I have an AT so.. its not the clutch here. At least not the transmission clutch. I suspect the a/c compressor or a belt tensioner or something like that.

snow05gtRI 12-08-2008 08:14 PM

mine does this as well, only when very cold...sub 25*F. not consistently though, thats the only temp i notice it at.

Abandonhope16 12-09-2008 08:41 AM

This AM is was about 40ish and it didnt do it. I think yesterday it was lower 30s and it did do it. Going to see if I can pinpoint when it happens.

ehsnils 12-09-2008 09:59 AM

Just try to increase the alternator belt tension a bit and see if it disappears completely!

Abandonhope16 12-09-2008 10:27 AM

Seeing as I've never attempted that; any how to instructions?

ehsnils 12-09-2008 11:13 AM

The alternator doubles as a tensioner, and it's on top of the engine. You will need some metric-sized sockets to loose the two screws that's in the traveling direction of the car that holds the alternator, circled with red in pictures below (only two turns or so) and then there is a third vertical screw which is used to adjust the tension, circled in green. Turn it one half to one turn in the direction that makes the belt tighten (it should be clockwise).

Too much tension puts unnecessary strain on bearings and the belt, but a turn on the tensionin adjustment screw will not cause much problems.

Tighten the two screws holding the alternator again.

Since the alternator is on top of the engine this is on a level where you don't even have to worry about your knuckles.

And while you are at it - check the belt for damage and cracks. If it shows some small cracks it may be a good idea to plan to replace it.

http://www.bedug.com/pics/Instruction/DSC_2883.JPG

http://www.bedug.com/pics/Instruction/DSC_2885.JPG


All times are GMT -6. The time now is 01:55 AM.


LegacyGT.com