Question about 2001 Buick Regal

1 Answer

2001 buick regal w/ bad ignition coil and clogged catylitic conv.

2001 buick regal LS 3.8 Non-Supercharged. Had bad ignition coil and plugged catalytic converter. Changed coil, converter and downstream oxygen sensor. Should I change the upstream oxygen sensor too?

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Buick Expert
  • 1,868 Answers

Hello! The defective ignition coil more than likely contaminated the downstream O2 sensor...If there isn't a trouble code and engine performs in a normal fashion, there's no reason to change the upstream sensor...

Guru........Saailer

Posted on Aug 03, 2010

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why does my 1999 Buick Regal LS hesitate when I am accelerating?


I am assuming you have the 3.8 ltr... non supercharged? I would have your coils and ignition control module checked, thats first. Usually, when the hesitation and or misfire occurs only during acceleration, the issue normally lies in the secondary ignition system. Meaning, ignition wireset, or coil pack or ignition control module. Is your check engine light on? I would have it scanned at a local parts store for any codes that may point you in the right direction for repairs. Or you can take it to a shop and have a diagnostic scanner hooked up and go to live misfire data, and figure out if it is misfiring, and on which cylinder the problem lies. Any other things I can assist you with, please dont hesistate to ask!

Dec 20, 2014 | Buick Cars & Trucks

1 Answer

Where is the oxygen sensor located on a 2001 buick regal ls


There are usually at least 2.
One is upstream, meaning before the cat. conv, the other is downstream, which is usually in the cat or near it

Aug 24, 2014 | Cars & Trucks

1 Answer

On my 2004 buick regal my number 6 cylinder mis fires i have replaced sparkpluge and wire sill misfire y is his


Spark Plugs should be replaced every 3 years,
in my world

Wires are only replaced after ten years or more, or when they
fail, on a secondary ignition test,not just so you can be sold
something called a tune-up that really is non existant

Plugs seldom misfire,they just wear down & stress the ignition
system

A misfire is caused by ignition coils,modules,vacuum leaks,
egr & such

Just have to go thru all the scan tool data at a repair shop &
on a road test, then component test or look for the obvious

Feb 19, 2013 | 2004 Buick Regal

1 Answer

My 95 buick reagal is running real ruff. One day I drove it to work with no issues and when I got off I started it to go home and it was real ruff. I almost had it floored to get on the high way. I checked...


Priority Action Part Type Cause
1 Inspect Catalytic Converter Clogged or Faulty Catalytic Converter.
2 Inspect Piston Ring Set Worn or Broken Piston Rings.
3 Inspect Distributor Worn, Damaged or Faulty Distributor.
4 Inspect Distributor cap/rotor Worn, Burned contacts

Priority Action Part Type Cause 1 Inspect EGR Valve Improperly Functioning or Faulty EGR Valve. 2 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 2 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 3 Inspect Radiator Cooling at System Clogged. 4 Inspect Timing Specification Incorrect Ignition Timing. 6 Inspect Coil -Ignition- Faulty Ignition Coil.

Sep 05, 2011 | 1995 Buick Regal

1 Answer

My 2003 Buick Regal is running like ****


Per your description, it sounds as though you have a stuck injector. I assume you have a service engine light on. Take the vehicle to your local Auto Zone or Advance Auto Parts and ask them to scan the car for trouble codes, they will scan the vehicle at no charge to you.
Write the codes down and respond back to this post and we can get started.
Let me know.
Regards,

Sep 09, 2009 | 2003 Buick Regal

1 Answer

No start 1998 Regal 3.8 Supercharged


Yes, I would start with the coil and plugs.

Jun 16, 2009 | 1998 Buick Regal

1 Answer

Supercharged 3.8


Could be a plugged catalytic converter or a plugged fuel filter, run an exhaust back pressure test, any muffler shop will do this, most times for free, the other thing to do is have the fuel pressure tested under a load, also clean the MAF sensor, a little dirt on the sensor wire wrecks havoc, You didn't leave anything in the intake runners did you? have seen seasoned technicians do this more than once.

Sep 30, 2008 | 2002 Buick Regal

Not finding what you are looking for?
2001 Buick Regal Logo

379 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick 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

6918 Answers

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

Answer questions

Manuals & User Guides

Loading...