Question about 2001 Oldsmobile Alero

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How do you change a serpentine belt on a 2003 Oldsmobile Alero?

My serpentine belt broke on my 2003 Oldsmobile Alero, I bought a new belt but now i can't figure out how to put the new one on! The engine is a 2.2 and everything works on it air,waterheater,ect. If someone could help that would be wonderful! Thanks!

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  • yadayada
    yadayada May 11, 2010

    follow the underhood diagram.

  • Anonymous Mar 17, 2014

    change serpintine belt on 2003 alero

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Brute force - you have to pry up the tensioner pulley. The way we did it was put the belt over the alternator and A/C compressor, and get it back in place around the main bearing pulley. Then we took a bar and forced up the tensioner and slid the belt over the main bearing pulley. Voila . . .

Posted on Jul 12, 2009

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I found this diagram from http://www.justanswer.com/car/25fmq-2002-old-alero-w-2-2l-cyl-engine-trying.html really helped me, with a breaker bar put into the little square hole (not at the center of the tensioner) you can relatively easily move the tensioner back with a counterclockwise turn.How do you change a serpentine belt on a 2003 Olds - 6_22_2012_7_20_53_pm.png

Posted on Jun 22, 2012

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What a pain in the Fu*****A***. I had to use a mirror. A regular socket ratchet will not fit in between the car body and the pulley. You have to use a square swivel ratchet

Posted on May 28, 2014

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I have a 2001 alero olds mobile with a 2.4 twin cam with the same problem but cant find a diagram,and the car has no manual to tell the size belt I need any ideal?

Posted on Mar 27, 2011

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You should have a Belt Routing Sticker Under the Hood from Factory. If not, It is in the Back of your Owners Manual. Let me know if you still can not find it.

Posted on Jan 14, 2009

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on Feb 14, 2012 | 2003 Oldsmobile Alero

1 Answer

My 2003 4cylinder Alero is not charging my brand new battery. How can I isolate the problem?


LOL but that does not mean the alternator is good disconnect the battery while running if it dies it is the alternator .

Sep 09, 2015 | 2003 Oldsmobile Alero

1 Answer

Hi I need a new serpentine belt put on my 1999 alero however I do not know how many grids the belt is supposed to have can you help me please


drive belt has 6 ribs.to buy a new belt take old drive belt with you you so you will get the right size belt.tell the auto parts store the year and model type car.tell them your engine size.and they will find the belt size you need.

Apr 25, 2011 | 1999 Oldsmobile Alero

1 Answer

Why is the serpentine belt to long to put back on my 2003 oldsmoble alaro?


only 2 reasons for this 1-Wrong belt or 2- you do not have it put on right. diagram is in the engine compartment, usually on the radiator area or the underside of the hood

Jan 04, 2011 | 2001 Oldsmobile Alero

1 Answer

Serpentine belt diagram for 2003


you could go to an out shop and find a book about the car they usally have all the diagrams and fuse box diagrams

Jul 15, 2009 | 2003 Oldsmobile Alero

1 Answer

Serpentine belt


Carquest Auto parts or anyone that carries Dayco belts will have a diagram

Mar 11, 2009 | 2001 Oldsmobile Alero

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