Question about 1996 Chevrolet Astro

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O2 sensor location 96 chevy astro

Exhaust diagram

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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

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Posted on Jan 02, 2017

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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

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captaynkyrk
  • 170 Answers

SOURCE: o2 sensors

The dealer would have that exact spec for your car. Do you have any friends who are in the auto repair business or that work at an Auto Dealership? The car you have is so new that there is no repair manual out yet to cover it. I have called Chevy Dealership Parts departments before to ask questions and it depends on the person on the other end of the line, as to weather they will give you the right info. Usually they will because it means they could sell you a part or some service work. Try calling and asking or even talking to a service writer or mechanic at a shop. You'd be suprised at what you might find out.

Posted on Jul 05, 2008

fixincars
  • 335 Answers

SOURCE: 1995 chevy astro van VIN

58927524Hope

Posted on Jul 27, 2008

  • 2 Answers

SOURCE: 2002 chevy impala o2 location?

it is locared on the driver side on top of the transmision

Posted on Feb 27, 2009

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.


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Posted on Aug 20, 2009

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