Question about 1999 Chevrolet Silverado 1500

1 Answer

O2 sensor problem

2000 silveraldo 5.3 2wd, the check eng light comes on every othe day and i erase it using my scan tool. i have replaced all sensors,still have this problem.runs like a new truck,good mpg im lost.

Posted by on

  • 2 more comments 
  • chris lesh
    chris lesh Jan 09, 2009

    no truck runs ine at idle an going down the road,im startin to think its something in the ecm

  • chris lesh
    chris lesh Jan 09, 2009

    i cant remember off hand.this is my dads truck im tryin to get it figured out.i can get them tomarrow im sure the light is on

  • Jacob Lamm May 11, 2010

    what was the codes you were getting. Need the Pxxxx numbers.

  • Tom Holmes May 11, 2010

    need more info running rough ?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,450 Answers


Posted on Jan 09, 2009


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

3 Answers

I have a 2007 jeep commander code P0153 O2 sensor slow response( bank 2sensor 1) replaced O2 light came back on later that day same code replaced O2 sensor again later that day check engine back on

What type O2sensor did you use ? Aftermarket ? Jeep's ,Chryslers , dodge are picky . WARNING Aftermarket Oxygen Sensors Chrysler part 1 Did you test or just replace the O2 sensor . P0153 Jeep O2 sensor 2 1 Slow Response If you don't have the tools like this guy uses an have the know how it's tough to fix problems like this .

Mar 24, 2016 | Jeep Cars & Trucks

1 Answer

How many eng. Sensors on a 2000 GMC safari 4.3L Replaced mass air flow crankshaft sensor and ck eng. Lite still on. What's next O2 sensor? Thanks

Have it scanned so we can try to pinpoint the issue before you spend money on a nonissue. Codes can direct you to the circuit or sensor problem.

Nov 15, 2015 | GMC Cars & Trucks

1 Answer

Got Honda accord 2000 code po135 replaced 02 sensor and stil show same code

How to Diagnose a P0135 -Heater
Performance Bank 1 Sensor 1 (GM 3.5L)
January 31, 2012 Updated: October 29, 2014 Written by: Abraham Torres-Arredondo Article Id: 371

image_1.gifIf your check engine light is on and you have a diagnostic trouble code P0135 stored in the PCM's memory... then you've come to the right place to test and troubleshoot the upstream oxygen sensor.
A P0135 DTC says: HO2S Heater Performance Bank 1 Sensor 1... and this means that the PCM (Powertrain Control Module = Fuel Injection Computer) has detected a problem with the front oxygen sensor's heater element or a problem in the heater's circuit (wires).
In this tutorial, I'll show you how to check the oxygen (O2) sensor's heater element and the two circuits that feed it with power (10 to 12 Volts) and ground with a multimeter.
In case you're wondering, where the oxygen (O2) sensor that the code P0135 is accusing of being BAD is... this bad boy is located on the exhaust manifold and before the catalytic converter.
To help you navigate this article, here are its main points:
  1. Symptoms of a BAD Oxygen Sensor Heater Element.
  2. What Tools Do I Need to Test Code P0135?
  3. What Does the Heater Inside the Oxygen Sensor Do?
  4. Circuit Descriptions of the Downstream Oxygen Sensor.
  5. Start Here.
  6. TEST 1: Oxygen Sensor Bank 1 Sensor 1 Test.
  7. TEST 2: Checking 12 Volts to O2 Heater.
  8. TEST 3: Checking the O2 Heater's Ground Circuit.
  9. TEST 4: Ohming the O2 Heater Element.
  10. P0135 O2 Sensor Heater Test Summary.
Buying a Digital Multimeter for Automotive Diagnostic Testing (found at:
  • Scan Tool.
    1. Don't have one?... check out my recommendation: Abe's Scan Tool Recommendation.
  • Wire Piercing Probe.
    1. Although this tool is not an absolute must, if you do buy one, you'll realize just how easy it makes testing the voltages inside the wires.
    2. If you need to see what this tool looks like, you can see it here:Wire Piercing Probe.
  • < Prev
  • 1
  • 2
  • 3
  • 4
  • Next >

  • Applies To:
    back-25.png forward-25.png
    Buick Vehicles:
    • Rainier 4.2L
      • 2004, 2005
    Chevrolet Vehicles:
    • Colorado 3.5L
      • 2004, 2005
    • Trailblazer
      • 2004, 2005
    3.5L image_thumb_home_page_1.jpg
    How To Test for a Blown Head Gasket (GM 3.5L, 4.2L)
    How to Test the MAF Sensor and Codes: P0100, P0101, P0102, P0103
    How To Test for a Blown Head Gasket (GM 3.5L -FWD)
    All Articles: 3.5L "A day without sunshine is like, you know, night"
    Steve Martin

    Feb 03, 2015 | 2000 Honda Accord

    1 Answer

    2000 outback check engine light on all the time, changed front o2 sensor, changed fuel cap, unplugged battery, and none turn this light off.\r\n any suggestion?

    You have to hook an OBD 2 scan tool up to the data link connector and check to see what code is present. If you have a knock sensor code, you need to replace the knock sensor. If you get a P0420: Catalyst system efficiency below threshold, you will need to replace your catalytic converter. But if it is nothing important, the only way to clear a check engine light is with a scan tool. You can usually go to any aftermarket parts store and they will check and clear you codes and light for free. I hope this info helps.

    Jul 27, 2011 | 2000 Subaru Outback

    1 Answer

    I have a 05 jeep wrangler the eng light is on comp says o2 senes b1 & b2 high voltage 250 km to a tank

    If the oxygen sensors on the vehicle are faulty then that could easily cause the poor fuel economy. Replace both of the O2 sensors and clear the code with a scan tool. You should start getting better fuel economy. I hope this was helpful.

    Feb 22, 2011 | 2005 Jeep Wrangler

    1 Answer

    2000RS 2.35/4G64 sluggish,rough idle,poor MPG,check eng light momentarily

    Sounds like an O2 sensor, go to An autoparts store like Schuck's, Autozone, or O'Reilys, and they will be able to a free scan for you, and tell you what your check engine light is on for. Or if it isn't on they could still tell you if it's a bad O2 sensor by reading the live data levels. Good Luck! :)

    Oct 28, 2010 | 2000 Mitsubishi Eclipse

    1 Answer

    I have a 98 jeep XJ

    what country are you in, USA/? we are
    what engine is there, ? we have like 2, but more outside USE
    must we guess both facts?
    so the engine runs great that it, all things ok but the trans fails to shift due to obvious , limphome (limp-in) mode ! that it?
    You just want shifting to work, right>?

    what is the nss, ( that is not an legit term)(VSS???)
    (sure tranny bad , VSS swapped, but was not it)
    sure.... as is the case most times here. not scanned correctly

    first off learn rule one on EFI cars
    you can NOT ERASE problems, or you can't erase REALITY.
    problems are cured then , you push reset and see if they return
    if they DO? THEY ARE REAL and must be corrected.

    p-700 means do a full scan of the Tranny TCM to see all errors there
    you scan tool is weak. my guess and can not do jeep factory codes
    that transmission TCM is in limphome mode.
    by light you meant CEL, check engine Lamp that is its name
    and comes on for smog fail and other things, (gross errors DRIVE LINE all)
    p0700 means (TCM has errors stored, only)
    p0100?? that must be a wrong code, written down. says export only.
    143 = O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)
    the oxy sensor B1S3 reads, 0volts all the time, so is bad.
    did you replace S3 or the wrong sensor.
    on calif 4L it has a split exh, man with 3 sensors, is that your engine? if yes, its the extereme rear o2, (smog only sensor)
    S3 is CAT check sensors.

    XJ jeeps
    we have 2 engines, only in USA< (EPA regs)
    2.5L and 4.0L GAS only.
    and rule 2, is the transmissions match engines, power. rating!
    so there is no one transmission fits all engines.
    I owned a 99XJ so know it well.
    the export car had a 2.5L diesel , a total different setup end to end.
    i have the USA service manual open
    there is no p0100 code on any Gas engine , usa.
    type or is this DIESEL, post?> why not post engine and fuel first.
    that tells me drive line (a/t)

    lets change your post
    b: scan it with a real scan tool, not a toy reader.

    here are the jeep works on P0700
    This SBEC III or JTEC DTC indicates that the EATX or
    Aisin controller has an active fault and has illuminated the
    MIL via a CCD (EATX) or SCI (Aisin) message. The
    specific fault must be acquired from the EATX via CCD or
    from the Aisin via ISO-9141.

    takes a matching scan tool to scan this box
    ISO-9141. is such a tool, spec.
    and needs to read P17xx codes (jeeps) too, or you fail.

    our 2.5L gas uses the 30RL trans.
    the 4.0L gas (petrol) use the AW4 ,tranny "aisin warner box" with TCM brain
    what the diesel uses, is not in my book (USA SM)

    now my recommendation
    drive to any shop
    ask for the transmission to be scanned
    do not pull your battery cable.
    do not push reset. on your cheap or tool old tool.
    leave the codes stored in the TCM so the man can scan it
    and win.
    oddly my jeep book does not explain, oxy sensor 1/3 at all. just that it reads 0v all the time 143 code, odd that.
    but no engine or trans stated by you or country

    Mar 29, 2017 | 1998 Jeep Cherokee

    1 Answer

    Check engine light won't stay off

    Did you have the shop check to see if your catalytic converter needs to be replaced?

    Oct 02, 2009 | 2000 Ford Expedition

    1 Answer

    Scan tool will not erase code # P-0601/2001 chrysler sebring 2.7

    Sounds like a bad PCM.A dealer may be able to reflash the thing but not certain.Do a web search for the above code and you'll get all kinds of info. Good Luck

    Mar 28, 2009 | 2001 Chrysler Sebring

    Not finding what you are looking for?
    1999 Chevrolet Silverado 1500 Logo

    180 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Chevrolet Experts


    Level 3 Expert

    77169 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22258 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