Rough running 3.3L Chrysler - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-16-2010, 04:29 PM
Registered User
 
Join Date: Oct 2007
Location: Cleburne, TX
Age: 29
Posts: 68
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Rough running 3.3L Chrysler

I know it's not a hot rod, but maybe somebody can help me out.

2001 Chrysler Voyager, 3.3L. 122K miles. Changed the spark plugs last Saturday, and on Sunday it started running rough, and backfiring under throttle. I changed the fuel filter (And broke one of the fittings on the fuel pump along the way, so new fuel pump.) It was still running rough, so after dark I went out and fired it up, and saw one of the plug wires was arcing against the manifold. So, new plug wires.

I even checked the egr, and cleaned it with some carb cleaner, and, and made sure it opened and closed like supposed to. It's running slightly better with new plug wires, but still backfires, and has an intermittent miss at idle.

I'm out of ideas, and my sis in law wants her van back! Pleas help me figure this out.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-16-2010, 04:54 PM
bigdog7373's Avatar
Of course it's fast
 
Last photo:
Join Date: May 2010
Location: florida
Posts: 2,673
Wiki Edits: 0

Thanks: 13
Thanked 49 Times in 49 Posts
check for vacuum leaks or a bad maf sensor
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-16-2010, 05:32 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,288
Wiki Edits: 26

Thanks: 7
Thanked 130 Times in 114 Posts
What kind of plugs did you install. If they are Bosch, throw them away and get the same ones that were originally in there. Also check to be sure you got all the wires on all the way, is is real easy to not have one "clicked on. As mentioned above take a look around and make sure you didnt break a vacuum line while changing the plugs.
__________________
Artificial Intelligence is no match for Natural Stupidity



Chet
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-17-2010, 02:33 PM
Registered User
 
Join Date: Oct 2007
Location: Cleburne, TX
Age: 29
Posts: 68
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I figured it out. It was a cracked plug. I must've had the socket not quite square with the plug when installing them. I saw it arcing against the manifold, even after new plug wires. Pulled it out, and the porcelain was cracked in a few places. New plug and it ran fine. I should've listened to the wife. She said, "You just changed plugs, and now it's running bad. Re-check the plugs."
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-17-2010, 07:09 PM
bigdog7373's Avatar
Of course it's fast
 
Last photo:
Join Date: May 2010
Location: florida
Posts: 2,673
Wiki Edits: 0

Thanks: 13
Thanked 49 Times in 49 Posts
If it was misfiring you most likely killed the cat converter. It's not made to take a whole load of fuel into it.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-17-2010, 07:18 PM
Registered User
 
Join Date: Oct 2007
Location: Cleburne, TX
Age: 29
Posts: 68
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Man, I hope not! It only ran maybe an hour total with that cylinder like that.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
chevy 4.3l help-detonation, running rough briansansone Engine 4 03-20-2007 07:14 PM
Carb help, running rich ! xxllmm4 Engine 4 03-09-2007 01:43 AM
chevy 2.5L just not running too well dukin-it-out Engine 3 09-23-2003 03:27 PM
350 running rough m14dan Engine 8 08-04-2003 06:37 AM
What is wrong with a chrysler 68newport383 Body - Exterior 23 02-11-2003 04:35 AM


All times are GMT -6. The time now is 03:28 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.