Question about Chevrolet Silverado

2 Answers

Have 1996 chevy Silverado 4.3 Service Engine Soon Light Stays on took to Autozone & the reader said replace O2 Sensor

Posted by on

  • 4 more comments 
  • Lrocker May 01, 2010

    Not Sure I'll Ask for code # tomorrow . He said reader said O2 Sensor , We Look at the 1 by the Cat. Convrtr

  • Lrocker May 01, 2010

    Just bought this truck I believe the fuel pump has been Changed & the Gas Cap doesn't not Pressurize . Have been getting Check Engine Now ! Needs O2 Sensor , the Dude at Autozone said thats what the reader Said

  • Lrocker May 04, 2010

    I'm getting a P0147 (Bank 1 Sensor 3) Heater Circuit & P0153 (Bank 2 Sensor 1) Slow Response. Any Help Is Appreciated. Thank You !

  • Lrocker May 04, 2010

    Hey Dan the man at autozone said That P0147 (bank 1 Sensor 3 )Heater Circuit is the Sensor before the catilatic converter is that correct thers 4 sensors total, There 1 on driver side exhaust 1 on passnger side the 1 before catlatic converter & 1 After catlatic contr

  • Dan
    Dan May 11, 2010

    The guy that posted the first solution most likely may be correct because it is a common fix [depending on what the code is]. The code reader at auto zone does not tell you it is a bad O2 sensor, the code means the sensor is giving a bad reading, there are many possibilities that can cause the sensor to give a bad reading.

    Let me give you an example: If you have a clogged fuel filter; you will have low fuel pressure which will make the engine run lean. This will result in a bad O2 sensor reading, thus causing a check engine code. This is just one of many possibilities. You have a 10+ year old vehicle, an old intake manifold gasket can cause a bad O2 sensor reading. Since you have an older domestic car... ALL parts are dirt cheap!!!

    The reason I ask what the check engine code is is because I just want to have a better idea of what to look for. Find out the code number(s) and let me know :) I'll tell you where to look next.

    Tho code should be a letter P followed by 4 numbers.

  • Dan
    Dan May 11, 2010

    What is the check engine code?

    Is it a P0171?

×

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Expert
  • 47 Answers

A P0147 is caused by a failure in the O2 sensor heater circuit. The heater circuit is used to allow a more accurate reading (for O2 sensor) while system is below normal operating temperature. The only way to properly fix this problem is to replace the O2 sensor, however you can clear the code and it may be a few days before it comes back [and sets check engine light]. This condition is somewhat common on GM vehicles of that age.

Posted on May 04, 2010

Testimonial: "I'll Do That Thanks Dan "

  • Dan
    Dan May 04, 2010

    Bank one is the side of engine where cylinder #1 is. Sensor 3 is the 3rd sensor on exhaust pipe (bank 1 side).


    Not all cars have four O2 sensors, some cars have 3, some could have 6. Same with catalytic converters, some cars can have 1, some can have 6.


    You need to first locate sensor 1, it may be located directly on exhaust manifold or right next to it (attaches into exhaust pipe). Sensor 2 is the next one down the pipe followed by sensor 3... or just look for a sensor after the last catalytic converter.


    Before you try taking it out let some PB blaster or WD 40 soak into it. And if you don't have access to spark plug sockets you might need a flared end wrench or a crows foot to get it loose. The new part might have a little bag of grease like stuff, just smear it on the threads of the new sensor and install. When you tighten it, just a little tug with an open end wrench is good enough. If you over-tighten it, it will be difficult for the next person to remove (a little tip for you in case you have to do it again 3 years later).


    Good Luck!

×

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,317 Answers

I would replace the O2 sensor, they go bad alot in these vehicles. I've replaced alot of them.

Posted on May 01, 2010

  • James Milzheimer
    James Milzheimer May 04, 2010

    The previous response is very true. But from what codes you have, I would say you have some bad O2 sensors.

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How to change BANK 1 & 2 o2 sensors 1 & 2 on 1996 chevy silverado


SORRY I DONT HAVE A PICTURE BUT BANK 1 & BANK 2 SENSOR 1 REFER TO THE LEFT AND RIGHT SENSORS BEFORE THE CAT CONVERTER ( UPSTREAM) SENSOR 2 REFERS TO THE SENSOR AFTER THE CAT (DOWNSTREAM) YOU TUBE HAS GOOD VIDEOS

Jan 20, 2015 | Cars & Trucks

1 Answer

Trouble codes for 2003 Chevy Blazer


Code 155 is for a problem with the heater circuit in the O2 sensor for bank two. Bank two is on the side with cylinder number two.
Usually the sensor is faulty, but the heater circuit would need to be checked to be sure. The sensor has a built-in heater to get it hot quickly after starting the engine.

Jul 10, 2013 | Cars & Trucks

1 Answer

Where is the coolant temp sensor on a 2002 1500 silverado 4.3 v6. I have replaced cap, rotor, plugs, wires, air flow sensor and all 4 o2 sensors and my service engine light still comes on.The truck has...


The service engine light means that there is a sensor that is bad or something is wrong. The only way to tell what sensor is bad is to get the diagnostics ran. You can do this at any Autozone. It is free. They will give you a printout of all of the codes that is making the service engine light come on. And what sensor that is causing this.

Feb 22, 2011 | 2002 Chevrolet Silverado

1 Answer

Chevy ''Service Engine Soon'' light keeps coming on


take about 20 minutes if you have to tools handy. You have 4 02 sensors so be sure to have the tech tell you which one.

Nov 26, 2009 | 2000 Chevrolet 3500

1 Answer

"Service enging soon" light stays on....


This could be a number of things causing this ...most common is that after you fill up the gas cap is not fully tightened...make sure it "clicks" 3 times while turning.The other common problem is that the gasket on the gas cap is old and thus does not seal the tank/fuel filler area...check with replacing the cap.If neither correct then you will need to bring to a service center or dealer to run a code check...maybe a bad O2 sensor or a code for the transmission.

Jul 29, 2009 | 2003 Chevrolet Tracker

3 Answers

Check engine light stays on and the car runs fine.........why?


it could be anything from o2 sensor. take it 2 autozone and they will analyze for free and tell you what it could be.

Jul 22, 2009 | 1995 Volvo 960

2 Answers

98 C1500 Silverado ''service engine soon'' light


the service engine soon lite comes on due to an input sensor to your vehicles computer that has gone out of its parameters. this lite does not come on due to mileage. the computer needs to be scanned for code #'s in order to diagnose correctly. autozone will scan codes for free. if you get me the code #, ill try to assist further, otherwise you may want to see your local garage.

Nov 22, 2008 | 1998 Chevrolet C1500

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

536 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...