Question about 2003 Oldsmobile Alero

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03 alero is have lots of troulble starting.

I need to know how to take my fuel injecters out.

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  • mizblu85 Jun 16, 2009

    ok never mind i got em out. hope ya'll never have to do it. it's not hard just a pain in the ****!!!!!

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Pull intake plenum then can unbolt fuel rail, injectors easy to change from there.

Posted on Jun 16, 2009

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1 Answer

Car wont start has spark has fuel


there is a sensor on your fuel injection rail that needs replaced. sorry i have to get back to you with what it is called.

Sep 20, 2015 | 2003 Oldsmobile Alero

1 Answer

My car was running fine and out of nowhere it just shut off and it wont start back


The same thing happened to my 03 olds Alero, i pluged my scan tool in and found out that my fuel pump was bad, I changed the fuel pump, fuel filter, and also checked the fuel injectors and blew out the fuel lines, now it's running great.

Feb 27, 2015 | 2003 Oldsmobile Alero

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Car won't turn over. Service guy sprayed gunkout in carburator and it started. Need to know where carbuator is on the car.


There is no carborater in this vehicle.It has fuel injection.My question is if it does not turn over how did it start?Did you mean it turns over but does not start and if it started when he sprayed in the throttle body then it is probably the fuel pump.Hope this helps.Good luck.

Mar 10, 2010 | 2001 Oldsmobile Alero

1 Answer

The engine turns over, diagnostics has no codes It's getting fuel I've replaced the Ignition control module It starts when ever it wants to.


Check your fuel pressure. I know your propbably thinking im nuts here but faulty fuel pumps are typically the culprit when a car starts sometimes and not others. With the new (er) fuel injection systems the ECM (cars computer) requires a predetermined ammount of pressure from the pump. If that pressure is not at the proper level the car will not start. I know your probably thinking "Why does it fire sometimes then?" Well, again this is a very common symptom of a faulty fuel pump, When a fuel pump starts going bad sometimes they do operate properly and sometimes they dont because the sending unit is getting weak. Infact the newer fuel injection systems like CSFI (central Sequential Fiel Injection) or SFI are known to be so picky that a loss of 1 to 2 PSI can prevent the car from starting. Don't go changing the pump without checking for pressure (do the check several times because of the car running when it wants to) as fuel pumps for most new cars can run up to $300. The other possibility however highly unprobable would be symptomatic of a faulty or failing NOX sensor.

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1 Answer

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1 Answer

03 Alero will start but dies right away


It sounds like your fuel filter has gone it life time and now to dirty to permit the proper fuel flow if any.
Start with checking the fuel pressure at the shredder valve, you should have over 45 PSI i believe but could be wrong, can not remember could be 60 PSI. 
If you can not check the fuel pressure, change the fuel filter first then see if it starts. If it does not, then it may be a bad fuel pump and need to be replaced. The fuel pump is electric and have a life time too and it may be at it's end also.
Good luck and keep me posted.

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3 Answers

'03 Alero engine ust died while driving down the road. Help?


  • see if you can hear the fuel pump click over when you turn it to start position! this may be a fuel pump?

Mar 27, 2009 | 2003 Oldsmobile Alero

1 Answer

Fuel pump


Missed or cut a seal on the lines.

Dec 21, 2008 | 1999 Oldsmobile Alero

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