Question about 1997 Chevrolet Astro

Open Question

Where is bank 1 sensor 3 on a 1997 chevy astro 4.3l

Posted by on

Ad

6 Suggested Answers

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

Ad
CMV9
  • 594 Answers

SOURCE: Pulled code p0420 on 99 chevy astro, 2wd, v6

from what i am finding the code means o2 sensors. they recommend replacing them and if this does not work than replacing the cat converter

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

causes

A code P0420 may mean that one or more of the following has happened:

  • Leaded fuel was used where unleaded was called for
  • An oxygen sensor is not reading (functioning) properly
  • The engine coolant temperature sensor is not working properly
  • Damaged or leaking exhaust manifold / catalytic converter / exhaust pipe
  • Retarded spark timing
  • The oxygen sensors in front and behind the converter are reporting too similar of readings
possible soloutions

Some suggested steps for troubleshooting a P0420 code include:
  • Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
  • Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).
  • Inspect the downstream heated oxygen sensor (HO2), replace if necessary
  • Replace the catalytic converter
One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.


thank you for choosing fixya and please do not forget to comment and rate on your experience.

Posted on Aug 20, 2009

Ad
dttech
  • 4803 Answers

SOURCE: where is the bank 2 sensor 1 located.

Oxygen sensors are always numbered like this:

Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2

some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
Sensor 2/2 or O2s 2/2

Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.

Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.

Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,

So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.

Posted on Oct 17, 2009

ZJLimited
  • 17970 Answers

SOURCE: diagram to where blank 1

Bank 1 Sensor 3 is the post converter sensor.

zjlimited.jpeg

Hope this helps (remember to rate this answer).

Posted on Jan 11, 2011

  • 1857 Answers

SOURCE: Code p0141 02 Sensor Heater Circuit Malfunct Bank #1 Sensor2

after the catalytic converter on the driver side in the exhaust pipe.

Posted on Jul 07, 2010

Testimonial: "Awesome info. Thanks!"

  • 701 Answers

SOURCE: How many 02 sensors does a 2003 chevy venture have

Hello dillonca: My name is Roger and I will help you. There should be two sensors. One in the exhaust manifold back by the firewall. This is sensor 1 bank one. The other is behind the catalytic converter. This is bank one sensor 2.
Should you need further help please just ask. Please rare your answer. This way I know the answer was helpful. Tank You for using Fix Ya. Roger

Posted on Oct 17, 2009

Testimonial: "Thanks for the info it was very helpful"

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

Wheret is the heater circuit?


P0155 is an O2 sensor heater circuit problem Bank 2 sensor 1. Replace the O2 sensor closest to the engine on the passenger side. The heaters are built into the sensor. No repairing them.

May 06, 2014 | 1999 Chevrolet Astro

1 Answer

Engine light code p1133 on a 2005 chevy colorado


P1133 CHEVROLET - HO2S Insufficient Switching Bank 1 Sensor 1xicon.jpghttp://engine-codes.com/p1133_chevrolet.htmlForum CodePossible causes- Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 shorted to Engine Control Module (ECM) ground
- Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Vacuum leak
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 connector and wires

Jun 24, 2012 | Chevrolet Colorado Cars & Trucks

2 Answers

Where is the O2 sensor Bank 1 on a 2005 chevy impala


BANK 1 UP STREAM OXYGEN SENSOR LOCATION IS LOCATED ON THE REAR EXHAUST MANIFOLD.

May 18, 2011 | 2005 Chevrolet Impala

3 Answers

Diagram to where blank 1 sensor 3 is on a 1997 chevy astro van is located


Bank 1 Sensor 3 is the post converter sensor.

zjlimited.jpeg

Hope this helps (remember to rate this answer).

Jan 11, 2011 | 1997 Chevrolet Astro

2 Answers

2005 chevy astro code po59


HI, the DTC your Astro has set POO59 is set when the computer doesn't see the oxygen sensor heating up fast enough. This DTC is for the bank 2 sensor 1 oxygen sensor. I have rarely come across and other failure for this code other then the O2 its self. I would recommend to my customer to replace this sensor. Good luck and happy motoring

Aug 27, 2010 | 2004 Chevrolet Astro

1 Answer

Where is the location of the bank one sensor one o2 sensor on my 2003 chevy suburban


bank 1 on a chevy is on the drivers side youll have 4 O2 sensors sensor 1 bank 1 is on the engine side of the cat converter sensor 2 bank 1 is after the cat converter (drivers side )
bank 2 is on the passenger side sensor 1 is pre cat sensor 2 is post cat converter

Mar 18, 2010 | 2003 Chevrolet Suburban 1500

1 Answer

2003 chevy astro awd code P0420 cat system efficiency below thres


if you had a problem with the converter you would also have more codes than just that one you would have codes for the evap plus the bank 2 codes as well chances are the O2 sensor on the bank one is the propblem so i would replace it and clear the code no problems should exist after that. as far as the security system the only way it would cause a stall is if that power feed comes from the ignition relay to supply that circuit to the cutout of the security system in a continuous loop and then only if the relay itself is found to be weak

Apr 20, 2009 | 1997 Chevrolet Astro

Not finding what you are looking for?
1997 Chevrolet Astro Logo

Related Topics:

5,229 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...