All
Search
Images
Videos
Maps
News
More
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Top suggestions for Hummer H3 Code P0420
P0420
Fix
GM Code P0420
Bank 1
P0420 Code
Chevy
P0420 Code
How to Fix
Diagnostic
Code P0420
P0420
Repair
Code P0420
GMC
Trouble
Code P0420
P0420 Code
Reset
P0420
Engine Code
P0420 Code
Trick Fix
Code P0420
Bank 1
Toyota P0420 Code
Fix
Ford Code P0420
Bank 1
Nissan
P0420 Code
P0420 Code
Dodge
P0420 Code
Bank 1 ES300
OBD2
Code P0420
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
P0420
Fix
GM Code P0420
Bank 1
P0420 Code
Chevy
P0420 Code
How to Fix
Diagnostic
Code P0420
P0420
Repair
Code P0420
GMC
Trouble
Code P0420
P0420 Code
Reset
P0420
Engine Code
P0420 Code
Trick Fix
Code P0420
Bank 1
Toyota P0420 Code
Fix
Ford Code P0420
Bank 1
Nissan
P0420 Code
P0420 Code
Dodge
P0420 Code
Bank 1 ES300
OBD2
Code P0420
700r4transmissionhq.com
Hummer H3 P0401: Meaning, Causes, How to Fix | Drivetrain Resource
P0401 is a very common OBDII trouble code that'll pop up in the Hummer H3. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your vehicle is responsible for recirculating exhaust gasses in order to lower the vehicle's emissions output. There are three
Dec 18, 2018
Hummer H3 Reviews
19:27
BUY OR BUST? - Hummer H3 High Miles Review!
YouTube
TopLineRacer
67.9K views
Feb 18, 2024
10:01
Why Hummer is the Greatest 4X4 SUV Ever Made !! | HUMMER H3 REVIEW
YouTube
carversal
517K views
May 24, 2023
3:33
Hummer H3 Full Review: Tough, Bold, and Underrated.|| 2025 Hummer H3 – Built for Adventure
YouTube
MILITARY JETS(RAFALE)
3 views
4 months ago
Top videos
Hummer H3 clogged catalytic converter symptoms, causes, and diagnosis
wheelsjoint.com
Dec 28, 2021
4:25
P0420 Code Fix How Its Done Catalyst Efficiency Below Threshold
YouTube
ACE AUTOS UK
658.1K views
Jun 20, 2014
5:27
Ford Catalyst Efficiency Codes P0420 P0430 Explained
YouTube
FordTechMakuloco
146.6K views
Nov 21, 2014
Hummer H3 Specs
3:36
2026 Hummer H3 Full Reveal — Specs, Pricing & Features”
YouTube
MVP Vehicles
97 views
1 week ago
8:05
Driving the 2026 Hummer H3: Range, Comfort, and Capability
YouTube
Driving Drift
223 views
2 months ago
3:16
2026 Hummer H3 Review New Design Features and Off Road Power
YouTube
WK Motors
49 views
1 month ago
Hummer H3 clogged catalytic converter symptoms, causes, and
…
Dec 28, 2021
wheelsjoint.com
4:25
P0420 Code Fix How Its Done Catalyst Efficiency Below Threshold
658.1K views
Jun 20, 2014
YouTube
ACE AUTOS UK
5:27
Ford Catalyst Efficiency Codes P0420 P0430 Explained
146.6K views
Nov 21, 2014
YouTube
FordTechMakuloco
1:43
How to Fix P0420 without replacing the Catalytic Converter
46.3K views
Dec 8, 2022
YouTube
Flat Rate Mechanic
2:14
P0420 CODE CAUSES AND SOLUTIONS
807.8K views
Sep 28, 2022
YouTube
EasyAutoFix
11:03
How To Diagnose A P0420 Catalytic Converter Low Efficiency Code Pl
…
1.2M views
Jul 9, 2020
YouTube
GoTech
2:08
how to fix P0420 ENGINE CODE
32K views
May 14, 2021
YouTube
robo tricks
10:02
How To Fix Code P0420
16.7K views
Aug 22, 2022
YouTube
Mechanic Base
2:40
How to Fix P0420 Engine Code in 3 Minutes [3 Methods / Only $19.99]
2.2M views
Oct 21, 2020
YouTube
nonda
59:38
Catalytic Converter Efficiency Below Threshold: Code P0420 & P0430 D
…
264.2K views
Apr 3, 2021
YouTube
KIT'S Auto and Truck Repair
11:49
How To Clean Catalytic Converter▶️ P0420 P0430 Fix
965.2K views
Jan 12, 2019
YouTube
RANDOMFIX
7:36
Everything You NEED to Know About P0420/P0430 Engine Codes!
4.8K views
9 months ago
YouTube
8020 Automotive
2:59
How to Fix HONDA P0420 Engine Code in 3 Minutes [3 Methods / On
…
152.2K views
Apr 30, 2021
YouTube
nonda
1:38
How to Fix P0420 Engine Code with Fuel Injectors Replacement
7.7K views
Nov 8, 2021
YouTube
nonda
8:03
How we resolved P0449 Evap Canister Solenoid Valve Check En
…
5.9K views
Feb 22, 2021
YouTube
Horsepower House
1:00
Quick Fix for P0420/30 Engine light Codes
255.4K views
Dec 13, 2020
YouTube
Vehic Fix
5:36
P0420 code fix PERMANENT, EASY, CHEAP
1.9M views
May 6, 2016
YouTube
Daniel Bargas
7:07
Can Cataclean really fix a catalytic converter / P0420 / P0430 error code
666.1K views
Sep 28, 2021
YouTube
Mountain Man Mo
8:10
CHEAP Catalytic Converter Fix - P0420 P0430
672.1K views
Nov 17, 2022
YouTube
War Paint Offroad
2:12
Hummer H3 Evaporation Vent valve P0449
54.4K views
Aug 8, 2016
YouTube
tjse7en
15:33
Easy Way to Clear Engine Code P0420 (O2 Sensor Fix)
41.1K views
Jul 28, 2019
YouTube
Z-Bruhz
4:27
FORD FIX CODE P0420 CATALYST SYSTEM EFFICIENCY ANY FORD
264.6K views
Oct 9, 2020
YouTube
Auto Repair Guys
14:33
Hummer H3: How to get rid of the "SERV TPM" message in your das
…
67.6K views
Apr 9, 2021
YouTube
Pro Bono Mechanic
13:20
Hummer H3, p0418 code secondary air, injector pump, relay, control ci
…
4K views
Mar 29, 2023
YouTube
MFIC-LIFE
9:03
Hummer H3 ABS Fault Traction Control Failure Service Stab Syste
…
179.7K views
Jun 23, 2015
YouTube
Shorty
2:53
Hummer H3 Problem | H3 Humper
9.8K views
Jun 4, 2021
YouTube
H3 Humper
6:11
P0420 Oxygen Sensor Fix
826.6K views
Jun 6, 2016
YouTube
speedkar99
5:13
Hummer H3 Passlock Repair - How to replace sensor
147K views
Nov 2, 2017
YouTube
Shorty
P0053 Code: Heated O2 Sensor (H02S) Heater Resistance (Bank 1
…
Oct 22, 2021
carparts.com
See more videos
More like this
Feedback