Question about 2002 Oldsmobile Alero

Open Question

How many oxygen sensors on a 2002 olds alero V6 3.4 liter engine? and what brand of oxygen do you recomend i replace the old one with?

Posted by on


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 133 Answers

SOURCE: Jaquar X Type Oxygen Sensor

two at the front on the exhaust cat and two on the rear, and yes if there tight

Posted on Dec 31, 2008

  • 1 Answer


intake manifold has a vacum leak or other vacum leak hose etc.

Posted on Dec 03, 2008

  • 80339 Answers

SOURCE: 2002 olds ALERO fan switch

u will need to change the blower motor speed control resistor, it is located near the blower motor in the housing.

Posted on Mar 17, 2009

  • 840 Answers

SOURCE: 1999 Olds Alero 3400 motor -- location of Crankshaft sensor

Welcome to fixya. If you need anything else go to here is the location.
On the lower rear of the engine (LA1) for the 7x
and for the 24x

On the lower rear of the engine (LA1

Posted on Jul 26, 2009

Testimonial: "Got it Thank You!!! Actually my problem was a bad fuel pump in the gas tank."

  • 775 Answers

SOURCE: 2001 Olds Alero oxygen sensor bank 1 P0135

p0135 indicates bank 1 sensor 1 which is before the cat.

Posted on May 22, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Instructions on how to remove and replace a map sensor on a 1999 olds alero 2.4 liter

Unscrew the old one , screw on the new one , replace electrical connector . nothing to it . Videos on youtube if you need pictures .You need to remove the plastic engine cover if there is one .

Oct 18, 2016 | 1999 Oldsmobile Alero

1 Answer

2002 bmw 325i engine light is on

All I know is that it is a 9 year old BMW. Probably has a little over 100k miles on it, right?
I would give better than 50/50 odds that a check engine light is telling you that your oxygen sensors are approaching the end of their service and are getting slow to respond. If you read the codes (which many auto parts stores will do for free) and the code says 'Catalyst efficiency low', the problem is old oxygen sensors.
You can replace oxygen sensors yourself if you have ramps to raise the car up.

Feb 03, 2011 | BMW 325 Cars & Trucks

1 Answer

I have a 2002 olds alero. it started with the car stauling while driving. then not wanting to start, then not starting at all. it had been a month of not starting and today i used quick start and it got it...

Could be a clogged fuel filter. However since the emissions code is alerting you it may be the oxygen sensor. Try changing the fuel filter first as the oxygen sensor is much more expensive. Thanks for asking!

Jun 29, 2010 | 2002 Oldsmobile Alero

1 Answer

Where is the front oxygen sensor located on my 2001 Olds Alero having a 4 cylinder engine.

Under hood , center, rear engine area, above exhaust pipe flange, mounted in exhaust manifold. May be behind a heat sheild that will have to be removed.

Jun 23, 2010 | 2001 Oldsmobile Alero

2 Answers

2001 Olds Alero oxygen sensor bank 1 P0135

p0135 indicates bank 1 sensor 1 which is before the cat.

May 22, 2010 | 2001 Oldsmobile Alero

1 Answer

Service engine soon light comes on and off

oxygen sensors are not serviced by mileage on newer models. When the sensor starts to fail, the "check engine" light will go on. Pulling codes will indicate problem areas. On a good running engine, you may never have to replace the O2 sensor,

Mar 05, 2010 | 1999 Oldsmobile Alero

2 Answers

Cant find oil filter on a 2002 alero 2.2 liter

The oil filter on a 2.2 liter...if it is an ecotec engine is right there toward the front of the engine on the right hand side. It is a cartridge filter. Just unscrew the cap, pull out old filter with the cap. Make sure the gaskets that come with the filter are replaced and snap new filter inside the cap and replace.

Jan 07, 2010 | 2002 Oldsmobile Alero

1 Answer

$250 oxygen sensor parts only 2002 Jeep GC too much? needed?


Aug 23, 2009 | 2002 Jeep Grand Cherokee

Not finding what you are looking for?
2002 Oldsmobile Alero Logo

Related Topics:

371 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts


Level 3 Expert

80339 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides