Question about 1999 Oldsmobile Alero

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My 1999 Olds Alero's Check engine light stays on. I had it in the shop and was diagnosed EVAP. Many of the fuel lines were replaced, yet light does not go out. Also replaced the gas cap and light is still on.

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  • Oldsmobile Master
  • 14,036 Answers

SOUND LIKE EVAP PURGE VALVE CONTROL SOLENOID GONE BAD ITS LOCATION ON THE 4 CYLINDER ENGINES IS ON A BRACKET NEAR THE AC COMPRESSOR AND 6 CYLINDER ENGINE ITS LOCATION.NEAR REAR FIREWALL SIDE CYLINDER HEAD BELOW THE IGNITION COILS.CHECK THE EVAP PURGE VALVE CONTROL SOLENOID FUSE AND IT WIRES AND CONNECTOR BEFORE BUYING A NEW ONE.

Posted on May 10, 2010

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1 Answer

I replaced the fuel pump in my 1999 Oldsmobile alero in may of 2012 when I start my car I get a big smell of gas just like I did when it went out before could it be going bad already


I'd use a gage and check proper fuel pressure. Also, check for external gas leak, at the fuel pump--fuel lines--fuel injector/s--fuel pressure regulator, and check evap system.

Feb 20, 2015 | 1999 Oldsmobile Alero

1 Answer

CAR WONT GO IN READY STATUS


broken evap line/port on fuel pump. Or leaking fuel pump o-ring
check the EVAP canister it is right next to fuel filter could be pcm needs update to fix false codes. Here is a old hillbilly trick that may help put saliva on the seal of gas cap when you fill up every time that may work for you.

Mar 26, 2014 | 2002 Oldsmobile Alero

1 Answer

1999 olds alero is sputtering i replaced the plugs and wires its still sputtering i get a po300 code


CODE PO300 MULTIPLE ENGINE MISFIRE DETECTED CONDITIONS. POSSIBLE CAUSES.WEAK FUEL PUMP.STOPPED UP FUEL FILTER.CHECK FUEL PRESSURE SHOULD BE 41 - 47 PSI. THE MASS AIR FLOW SENSOR CONTAMINATED CAUSE VERY LEAN CONDITIONS.EGR VALVE STUCK OPEN OR PVC VALVE HAS VACUUM LEAK. THE EVAP SYSTEM CANISTER FUEL SOAKED.

Mar 12, 2011 | 1999 Oldsmobile Alero

1 Answer

2000 alero smells like gasoline in the cab at start up


LOOK FOR FUEL LEAK UNDER THE HOOD IN THE ENGINE COMPARTMENT.CHECK FUEL LINES.TO FUEL RAILS.AND CHECK FOR FUEL LEAKS AT FUEL PRESSURE REGULATOR.LOOK UNDER CAR FROM FRONT TO REAR TO FUEL FILTER TO FUEL TANK LOOK FOR FUEL DRIPPING.IF YOU FIND NO LEAKS.YOUR EVAP CANISTER NEXT TO FUEL TANK FULL OF GAS OR EVAP CANISTER HOSES DISCONNECTED OR BROKEN.DONT DRIVE VECHICLE UNTIL YOU FIND FUEL LEAK.NOT SAFE.

Feb 04, 2011 | 1999 Oldsmobile Alero

1 Answer

1999 olds alero, ignition light comes on and car


first check the alternator belt if fine then yes the alternator may be bad.(note) make sure to check the oil level it will also make car die out.

May 06, 2010 | 1999 Oldsmobile Alero

1 Answer

Fuel filler won't not accepting gas. takes only a


HAVE FUEL EVAPORATIVE SYSTEM CHECK OUT.SOUND LIKE PROBLEM IS IN THE EVAP CANISTER PURGE VALVE OR VENT VALVE.YOUR FUEL TANK BUILDING UP WITH GAS VAPORS KEEPING YOU FROM PUMPING GAS IN TANK.

Feb 07, 2010 | 1999 Oldsmobile Alero

2 Answers

I have a 2000 Alero Oldsmobile, engine light is staying on it is a error code p0442, I replaced the gas cap and the canister, and the light is still coming on. Does anyone know what the problem could be?


There may be and EVAP solenoid that is leaking. THe OLDS Aurora has this and it is a common failure with this code. Also, the evap lines run to the fuel pump on the top of the gas tank. Some cars have an access panel in the trunk under the carpeting, near the back seat on the right hand side.

Sep 29, 2009 | 2003 Oldsmobile Alero

1 Answer

1999 Olds Alero, unleaded gas. Am having problem with gas tank


have your evaporative purge valve solenoid check. because its controls the gas vapors going to canister purge or vent valve.take it to dealers have the evap system scan because its not venting or controling gas vapor.it suppose vent gas vapor to intake to be burn.if it dont work it causes excess gas vapor pressure built up in tank. make it hard to pump gas into it.

May 17, 2009 | 1999 Oldsmobile Alero

4 Answers

2001 oldsmobile alero


I have a car in the shop right now same thing - it is being caused by a misfire. Need a real technition to diagnose the problem (auto zone - advance auto can't diagnose the problem - only read the code)
mine was caused by a failing fuel injector. good luck

Jun 26, 2008 | 2001 Oldsmobile Alero

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