02 bonneville code 420 quetion... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 12-01-2009, 07:34 PM   #1
Junior Member
Thread Starter
 
Join Date: Nov 2008
Location: boynton beach, Fl
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
DoubleAA53 is on a distinguished road
Default 02 bonneville code 420 quetion...

Hello all,

I've been reading alot from you guys on the code 420 for my 02 bonneville.... My code reader reads

420 bank 1...And I notice occasionally when I drive after awhile it will just start jumping or hesitating some and if you maintain your speed it stops but if you try to accelerate it does it more...and then eventually stops...I guess I'm looking for more insite, I've had one mechanic tell me its the cat prob clogged and one guy over the phone tell me I need this expensive test... And what is the bank 1 referring too...

Any help would be greatly appreciated...thanks
DoubleAA53 is offline   Reply With Quote
Old 12-01-2009, 08:14 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Take a look here and see if that helps. https://www.gmforum.com/t284086/#post1390979
Danthurs is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
TCC (torque coinverter clutch)code and Evap code at same time?? (fixed) lobi Oldsmobile 16 02-24-2011 11:46 AM
1991 SSE - code 28 code 39 code 42 - losing sleep labonnita 1987-1991 9 12-26-2009 10:58 PM
420 catalyst system low efficiency hal brodmann 2000-2005 10 02-20-2009 11:33 AM
SSEi Bonnie is having a Nervous Breakdown. Code after Code wug 2000-2005 18 08-24-2008 09:48 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:56 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.