What is causing my Alero to shut off immediately after starting?

SOURCE: 2002 oldsmobile alero Security lock no fuel gets to engine

Hi, I just read somewhere on the WWW that the crank sensor and or fuse can be a issue. I too have a 2002 Alero.. Worst car I have ever owned!

Colin Stickland

• 22516 Answers
• Posted on Jan 23, 2009

SOURCE: 2000 alero wont start, changed battery, still wont start.

dealer only,faCTORY IMMOBILISER

Marvin

• 85242 Answers
• Posted on Feb 09, 2009

SOURCE: Security System on 2002 Oldsmobile Alero

the most common cause of this is the key, to check this use another working key, if the problem persists the ignition lock cylinder sensor is defective and the lock cylinder must be replaced, the dealer will need to do this as the security system must be re-programed to accept the new key code.

SOURCE: 2002 old alero 3.4L itermittent no start, star and stall

My daughter has the same problem and has been in contact with GM. The problem is the system, not the battery or fuel pump etc. GM has no direct fix or parts to repair. The battery disconnect/reconnect works best, its what a dealer will do and they reset the computer even though they find no error. Alero is also is prone to bad motor mounts effecting grounding which can cause the same problem. GM replacement mounts are the same as the problem mounts. Battery reset works here too. Since Olds is gone they won't invest, especially now. carry the battery wrench, drive it till you can't stand it any more and then trade in. Look at the net, its full of the same problem in multiple years of that Alero version. Shame its a nice car.

SOURCE: 99 Alero Passlock and starting problem

YOU CANT BYPASS PASS KEY ANTI THEFT SECURITY SYSTEM.ITS PART OF THE PCM.IT WAS MADE WITH CAR.THATS WHY YOUR CAR NOT CRANKING.THE SECURITY THEFT SYSTEM SHUT DOWN FUEL SYSTEM.THE DEALERSHIP HAS TO FIX. IF YOUR IGNITION SWITCH KEY CYLINDER LOCK OR KEYS ALSO THE BCM FAULTY.THE DEALERSHIP HAS TO REPLACE FIX THEM AND REPROGRAM TO PCM IN ORDER FOR CAR TO CRANK.