Question about 2003 Oldsmobile Alero

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I have a 2002 Oldsmobile Alero with the 2.2. I have spark and fuel to the rail but will not start. No idiot lights on. Changed the fuel regulator that is located on the fuel rail tonight. Did not change a thing. Will crank but still wont start. Where do i start diagnosing?

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Im pretty sure its your timing belt

Posted on Dec 31, 2010

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It's spark or fuel no question!try taking the breather off and spray just a small amount of starting fluid through the air induction to see if it trys to start,if it does, that leans towards a fuel problem,if not, that moves on to a spark probllem,that maybe a bad crankshaft sensor. that tells the engine to spark, when fuel is present. it takes 180lbof pressure to run engine. no play there. thets why i asked you to usea small amount of starting fluid. this leads to fuel issue, such as fuel pump,clogged fuel pump filter, computer,ecm,under hood in main fuse box,check all relays first.black box,under the hood,look for bad relay for fuel pump, hope this helps and thank you for choosing fixya.com

Posted on Dec 31, 2010

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