Question about 2001 Oldsmobile Alero

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I need to know where the heater bypass valve is in a 01 oldsmobile alero. and how to replace it

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It should be inline with the heater hoses

Posted on May 23, 2011


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2002 Oldsmobile Aurora 3.5 I need to know how to bypass the heater core please and thank you

I'm sorry to say You can't bypass the Heater core by doing so You'd have a cold vehicle inside in the winter time plus they don't manufacture parts for such a procedure. so You'll have to replace it.

Oct 13, 2016 | Oldsmobile Aurora Cars & Trucks

1 Answer

I changed the thermostat on my 01 olds alero but it still overheats. i have a small leak from the coolant expansion tank but not a big enough one to drain the whole tank. it seems like the tank overfl

try checking your water pump the fluid just my be sitting there n not circulating or is poorly flowing n also check your heater core it might be clogged might need replaced

Apr 22, 2013 | 2001 Oldsmobile Alero

1 Answer

2003 Alero, heater won't shut off? Fan shuts off but can't turn heater off.

Faulty heater control valve.Its located under the hood on the passenger side in front of the firewall.

Oct 29, 2012 | 2003 Oldsmobile Alero

1 Answer

Can i bypass the heater core

yes you one heater looped back into the engine.

I’m happy to help further over the phone at

Jan 12, 2011 | 2000 Oldsmobile Alero

1 Answer

Sometimes my 2001 alero, 2.4, I can not turn the wheel, no power steering, fluid is full, all of a sudden it works,is there a bypass valve somewhere?

Check you belt to see if it is slipping. If your belt and belt tension is good you may have a faulty PS pump.

Dec 14, 2010 | 2000 Oldsmobile Alero

1 Answer

Instuctions for removing heater core

  • Disconnect the negative cable from the Oldsmobile Alero's battery. While the car is securely raised on jack stands, drain the engine coolant into a clean container. Most models don't have a drain plug on the bottom of the radiator, so you must take off the lower radiator hose to drain the system.
  • Step 2 Remove the drain tube from the heater's housing and disconnect the heater hoses from the core. Take off the center console, if one is equipped. Then, take off the sound insulators on both sides of the car, the steering column's opening filler, the air outlet duct and the floor air outlet to reach the heater core.
  • Step 3 Disconnect the heater core cover. Remove the core-to-housing mounting clamps and remove the heater core.
  • Step 4 Install the replacement heater core. Connect the mounting clamps and replace the core cover.
  • Step 5 Replace the rear floor air outlet, air outlet duct, steering column opening filler, sound insulators and center console (if equipped). Reattach the heater hoses to the core and the drain tube to the housing.
  • Step 6 Fill the cooling system, using new coolant if the old liquid doesn't appear clean. Be sure the lower radiator hose is securely back in place before filling the radiator. Reconnect the negative battery cable.
  • Step 7 Start up the Oldsmobile Alero's engine and let it run until it reaches normal operating temperature. Observe the climate control operation and check for any leaks in the system.

  • Read more: How to Replace the Heater Core in an Oldsmobile Alero |

    Jul 22, 2010 | 2000 Oldsmobile Alero

    1 Answer

    I have a 2000 Oldsmobile Alero and the heat wont work on any settings; why?

    It's possible the "heater control valve" is not working. Could be a cable or vacuume line. What ever controls it.
    Also the temp controls, behind the dash, ARE controled by vacuume. Could be a line is kinked or come off.
    Hopefully the heater core is not stopped up....

    Dec 03, 2009 | 1999 Oldsmobile Alero

    1 Answer

    Like to know the part # for passlock switch on 01 alero

    If you are looking to replace or bypass the system, there is a great write-up here: . This was the only system that saved my Park Avenue.

    Oct 13, 2009 | 2001 Oldsmobile Alero

    1 Answer

    Engine kills when engine warm

    You need to replace your IAC (idle air control valve). The IAC, like it sounds, control the idle of your car. When they go bad they will cause the low idle and stalling. The IAC is located on the throttle body and is usually held on with a couple of screws. It is an easy relatively cheap fix that you can take care of by yourself. Let me know if you have any more questions. Thanks for rating my response and for using FixYa!

    Jan 29, 2009 | 2001 Oldsmobile Alero

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