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Chevrolet
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Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0420
CHEVROLET P CODES (POWERTRAIN) P0400 - P0499 P0420
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Found 32 results
Trouble Code Po420
I Have A Po420 Code On My Car And I Don't Know If It’s My O2 Sensor Or My Catalytic Converter Is Bad Or What. I Don’t Have A Bad...
Asked by
AWiles1218
·
4 ANSWERS
6 IMAGES
2011
CHEVROLET CRUZE
VIDEO
Code Read Retrieval/Clear Chevrolet
Instructional repair video
GUIDE
Check Engine Light
Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...
P0420 Please Help!!!
I Just Had My Code Checked And It Said That It Was A P0420 Code And It Had Another P0420 Code With Some Symbols Beside It. How Do I Know If...
Asked by
NURSEHEATHER09
·
24 ANSWERS
2009
CHEVROLET MALIBU
How To Fix A Code P0420
So My Truck Threw A Code P0420. I Replaced The Oxygen Sensor Before The Catalytic Converter, Cleared The Codes And The Same Code Popped Up...
Asked by
Tevinlopez23
·
4 ANSWERS
6 IMAGES
2002
CHEVROLET TRAILBLAZER
Code Po420
I Have A Live Data Freeze When Code Occurred.
Asked by
Abelraya
·
1 ANSWER
7 IMAGES
2012
CHEVROLET MALIBU
VIDEO
How to Read Codes Chevrolet
Instructional repair video
Code P0420
I Took My Son's Car To O'riellys For A Diagnostic Because The Check Engine Came On And One Of The Codes That Came Up Was P0420. Is...
Asked by
Ckmarti61
·
3 ANSWERS
5 IMAGES
2004
CHEVROLET TRACKER
P0420 Cat Converter
I Have A 2002 With A P0420 Cat Code. The Factory Cat Was Replaced A Couple Of Years Ago After Becoming Clogged, And Had No Issues To Almost...
Asked by
Craig3777
·
10 ANSWERS
2002
CHEVROLET IMPALA
GUIDE
Check Engine Light Safe to Drive?
We are a team of ASE certified mechanics that have created this guide to help you understand if your car is safe to drive with the check engine or service engine soon...
1998 Chevy Lumina Po420
Car First Started Missing, Not Backfiring, When I Stepped On Accelartor Harder It Would Almost Die, Make A Popping Noise, Bilge Black...
Asked by
doyle1a
·
1 ANSWER
1998
CHEVROLET LUMINA
2003 Chevrolet Impala PO420
I Have A 2003 Chevy Impala With A 3.8 V^. Back A Couple Of Months Ago My Check Engine Light Came On And There Was A Code Of Po420 So I Went...
Asked by
faw484
·
1 ANSWER
2003
CHEVROLET IMPALA
2004 Chevy Silverado Code P0420 Problems
This Code Keeps Coming Up And We Are Running Out Of Ideas How To Fix It. Convertor Is Less Than A Year Old And Seems To Be Okay. O2 Sensor...
Asked by
psbowler
·
4 ANSWERS
2004
CHEVROLET SILVERADO
Code P0420 How Do I Fix?
I Had A Tech Hook Up The Machine And He Gave Me This Code. P0420. He Said It Was Catalyst Or The O2 Sensor. Can U Help Me
Asked by
mike espinoza
·
6 ANSWERS
2004
CHEVROLET SILVERADO
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