Top 10 2002 Oldsmobile Alero Questions & Answers

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where do i check transmission fluid in 2002 alero

where do i check transmission fluid in 2002 alero

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on the out put housing pass side small plug 11mm wrench remove while car idling on a level surface add correct fluid type until runs out of hole

Posted on Nov 08, 2009

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fuel pump 2002 oldsmobile alero

how to change the fuel pump and where is the fuel pump located

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In order to replace the fuel pump u must remove the gas tank, the fuel pump is located inside the tank. U are going to need to get the car at least 3 feet in the air, u will need a good 2 1/2 ton hydraulic floor jack, 4 good safety stands and common hand tools, also a brass drift to release fuel pump module retainner ring on top of tank, don't use steel one spark and u are up in smoke.

Posted on May 19, 2009

Question

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where is the oxygen sensor

where is the oxygen sensor bank 1 sensor 1?

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From the 2002 Oldsmobile Alero manual:
A device found in the exhaust manifold, which generates a small voltage dependent on the amount of oxygen present in the exhaust stream, used as a signal to the engine-control computer to determine the amount of fuel necessary to maintain a proper air/fuel ratio.
What this means to me is search the exhaust manifold for it - its screwed into it.
Unscrew it with a specialty oxygen sensor socket (a slotted 7/8-in hex socket) - available for
$10 at any parts store. This is likely the HO2S (heated oxygen sensor) Bank 1 Sensor 1, since
it is before the catalytic converter, the second oxygen sensor (Bank 1, Sensor 2) should
be the one located after the catalytic converter.

codes:
P0130 - HO2S-11 (Bank 1 Sensor 1) Circuit Closed Loop Performance
P0131 - HO2S-11 (Bank 1 Sensor 1) Circuit Low Input
P0132 - HO2S-11 (Bank 1 Sensor 1) Circuit High Input
P0133 - HO2S-11 (Bank 1 Sensor 1) Insufficient Activity
P0135 - HO2S-11 (Bank 1 Sensor 1) Heater Circuit Malfunction

Note the P0131 can be also be caused by a bad MAP (Manifold Absolute Pressure) sensor,
so yank the MAP sensor and check the computer for a lean fuel condition (P0131=low input).

Posted on Mar 24, 2011

Question

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The alternator is not charging the battery on my 2002 Alero, how do I fix this?

The battery is not charging but it good. The alternator was rebuilt and started charging the battery at 19 volts then went down to 14 volts which was alright, until, the battery charge just kept going down. The battery is still good & we tried another rebuild kit using tips from the manufacturer. Now it starts at 10 volts. We turned it off immediately. What could be the problem?

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a bad battery would give a wrong judgement of an alternator output. take off your battery and replace with a working one, test your alternator output using a DMM it should read about 12.5 when engine off and 14v when engine start running any figure more or less shows you have a bad alternator or an incorrect input current to the alternator....hope this fixxx it?

Posted on Jul 14, 2015

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WHERE IS THE PCM LOCATED?

WHERE IS THE PCM LOCATED?

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Answer

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The PCM is located under the driver's side of the dashboard... start by removing the plastic kick panel.

 

Here's a whole change out procedure with great pics!

http://www.automotivehelper.com/topic894020.htm

 

best wishes!

Posted on Jan 12, 2011

Question

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need the step by step instructions and pictures on

need the step by step instructions and pictures on how to replace an water pump on an 2002 Oldsmobile Alero 2.4L

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Removal & Installation

2.2L Engine

  1. Before servicing the vehicle, refer to the precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the engine coolant.
  4. Remove or disconnect the following:
    Exhaust manifold, if equipped with n automatic transaxle Right front wheel Splash shield Water pump sprocket access plate from the timing cover

    fcd00e0.jpg

    Fig. Remove the water pump sprocket access plate from the timing cover -2.2L engine
  5. Attach Water Pump Sprocket Holding Tool J 43651to the sprocket using the access plate bolts to secure the tool to the engine front cover.
    Sprocket to water pump bolts Engine block to water pump bolt Engine front cover to water pump bolt Thermostat housing to water pump feed pipe 2 water pump to engine block bolts Water pump

    30965cd.jpg

    Fig. Water pump mounting-2.2L engine
To install:
  1. Use a threaded stud in the water pump hub to align the hub to the water pump sprocket.
    Water pump and bolts Thermostat housing to water pump feed pipe Engine front cover bolt and engine block to water pump bolt. Tighten the bolts to 15 ft. lbs. (20 Nm) 2 of the water pump sprocket to water pump bolts
  2. Remove the threaded stud.
    Last water pump sprocket to water pump bolt and tighten the sprocket bolts to 89 inch lbs. (10 Nm).
  3. Remove the tool.
    Water pump sprocket access plate to the timing cover and tighten the bolts to 89 inch lbs. (10 Nm) Splash shield Right front wheel Exhaust manifold, if removed
  4. Fill the cooling system.
  5. Connect the negative battery cable.
2.4L Engine
  1. Before servicing the vehicle, refer to the precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system.
  4. Remove or disconnect the following:
    WARNING Do not rotate the flex coupling more than 4 degrees or damage may occur. Oxygen Sensor (O 2 S) electrical connector Exhaust manifold heat shield Coolant inlet housing bolt through the exhaust manifold Exhaust manifold brace-to-manifold bolt Manifold-to-exhaust pipe studs Coolant inlet housing-to-water pump cover bolt Exhaust pipe from the exhaust manifold by pulling it downward Coolant inlet pipe from the oil pan Brake vacuum pipe from the camshaft housing Exhaust manifold from the cylinder head Heater hose from the heater outlet pipe Timing chain cover and tensioner Water pump cover-to-engine bolts 3 water pump-to-timing chain housing nuts Water pump and cover assembly Water pump cover from the pump

    f9cdfa8.jpg

    Fig. Exploded view of the water pump mounting-2.4L engine
continue...

Posted on Oct 22, 2009

Question

  • 2,637 People Helped

car wont start makes a clicking noise and resets the clock everytime

Car just quit starting I disconnected the Battery and cleaned the connections on the battery. everything works until I try to start the car lights are all lit, radio works, electric seat adjistments all work

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Does the battery have a good charge in it. Possible bad starter to.

Posted on Jun 13, 2012

Question

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How do you reset the service engine soon light on

How do you reset the service engine soon light on a 2002 oldsmobile alero?

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or you can disconnect your battery for 30min-hr...that also works

Posted on Apr 14, 2010

Question

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Overheating after I fixed the blown head gasket

I just fixed the head gasket, replaced the thermostat but the car is still over heating the water pump is not leaking but temp red lines in ten minutes
should I replace the water pump? what else can it be please help.
Thanks

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Raise the front of the car as high as possible with a jack then run the engine and leave the radiator cap off, the air in the system should go to the high point which will be the radiator, don't over heat the engine, after the system is warm put the cap on and fill the recovery tank all the way up, run until it starts to get hot turn if off and leave it up jacked up well it cools, running a hose on the radiator will speed this up. This should cure the bleeding issue or really help.

Posted on Aug 04, 2008

Question

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how to change water pump in 2002 alero and a

how to change water pump in 2002 oldsmobile alero and a diagram of the engine? and where to start from the top of engine or side by the tire?

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I suggest that you visit the autozone.com website and register the vehicle. It doesn't cost anything and will give you access to an online repair manual. The steps for replacing the water pump should be available there. Hope this helped and best wishes.

Posted on Sep 01, 2009

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2002 Oldsmobile Alero Alero

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