Bucking and jerking not running right - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-02-2013, 08:14 PM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Bucking and jerking not running right

HI I have a 1996 Chevy C3500 5.7 manual transmission. I let the truck sit for 4 to 5 months to have my transmission rebuilt. Drove the truck for the first time after all of the work was done. Broke down and was running like crap so I changed the following Plugs, wires , rotor , cap , fuel flitter, Ignition control module and coil ... I also put fuel treatment in the gas tank and went with high octane with non ethanol fuel. Still not running right bucking and jerking when under a load. with high rpms runs fine. NO CODES. I don't understand ran fine the day I parked it

    Advertisement

Last edited by tommyboy8072002; 03-02-2013 at 08:40 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-02-2013, 08:27 PM
S10 Racer's Avatar
http://www.warsprints.com
 

Last journal entry: W.A.R. (Wingless Auto Racing) Sprint Car Racing
Last photo:
Join Date: Nov 2007
Location: At The Dirt Tracks
Age: 55
Posts: 1,881
Wiki Edits: 0

Thanks: 3
Thanked 59 Times in 54 Posts
Quote:
Originally Posted by tommyboy8072002 View Post
HI I have a 1996 Chevy C3500 5.7 manual transmission. I let the truck sit for 4 to 5 months to have my transmission rebuilt. Drove the truck for the first time after all of the work was done. Broke down and was running like crap so I changed the following Plugs, wires , rotor , cap , fuel flitter Ignition control module and coil ... I also put fuel treatment in the gas tank and went with high octane with non ethanol fuel. Still not running right bucking and jerking when under a load. with high rpms runs fine. I don't understand ran fine the day I parked it
What kind of plugs did you put in it? What did you gap them at? If the motor has alot of miles (100k+) I would put platinum plugs in it.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-02-2013, 08:58 PM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I ran with ac Delco plugs.. Were gaped a 60 still ran like crap. so I was told to drop it down to 45 still not running right ....
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-02-2013, 09:05 PM
Registered User
 
Last photo:
Join Date: Jan 2013
Location: The Motor City
Posts: 246
Wiki Edits: 0

Thanks: 10
Thanked 30 Times in 30 Posts
You may want to check your EGR valve. May be stuck open or closed after parking it for a while
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-02-2013, 09:06 PM
Registered User
 
Last photo:
Join Date: Jan 2013
Location: The Motor City
Posts: 246
Wiki Edits: 0

Thanks: 10
Thanked 30 Times in 30 Posts
You may also want to check fuel filter and clean fuel system out
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 03-02-2013, 09:39 PM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Should I un plug the EGR valve to check it. Or do I have to do something else to see if its working or not... sorry don't remember how to check to see if its working or not...
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 03-02-2013, 10:23 PM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I also noticed that my rpms is unsteady.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 03-02-2013, 10:39 PM
Registered User
 
Last photo:
Join Date: Jan 2013
Location: The Motor City
Posts: 246
Wiki Edits: 0

Thanks: 10
Thanked 30 Times in 30 Posts
Egr

Are you getting a RPM surge at idle? You can test the EGR with a hand held vacuum pump. First see if it holds vacuum. You can remove it and clean it. You can unplug the vacuum line and see how it runs. You can remove it and see if the plunger even moves or if its siezed up. See if will hold a vacuum first. Cant hurt to spray some carb cleaner around all your vacuum lines while its running to see if you may have a vacuum leak anywhere. Start there and work your way to removing and cleaning the EGR valve. Not a bad job on a small block chevy. Let me know what you find.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 03-02-2013, 11:13 PM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok . On mine all I have is a plug no line. So I will unplug it and see if it makes a difference. Will let you know what I find thanks...
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 03-03-2013, 08:50 AM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I checked all of the lines and Egr valve seems to be running a little better. But now I have a pop in the Exhaust Manifold driver side every now and then. Never messed with the timing

Last edited by tommyboy8072002; 03-03-2013 at 09:01 AM.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 03-03-2013, 09:35 AM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,207
Wiki Edits: 0

Thanks: 202
Thanked 256 Times in 238 Posts
if its a vortec , it may be developing a problem in the poppet (injectors)
you could run some seafoam or chevron with techron through it to see if that helps.
Just dump some in a 1/4 tank ( I like to dose it heavy) and drive till almost empty, then fill up and dump another can in it. Drive it a while, see if it clears up after a while , if not maybe it will set a code and help aim your diagnostics in the right direction.
Good move doing a tune up first. Nothing I hate worse than trying to diagnose a driveability problem with all the regualer maintenance items in the questionable area. Eliminating them is must for any good diagnosis.
Inspecting and / or replacement is needed.
Good luck.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 03-03-2013, 09:56 AM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok. Thanks. I will try that and see if it helps. And yes it is a vortec.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 03-03-2013, 10:06 AM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Have a question what about fire ball I noticed that one of the parts stores Carrie it. Should I try that or get the other stuff that you mentioned.. Thanks ...
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 03-03-2013, 10:12 AM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,207
Wiki Edits: 0

Thanks: 202
Thanked 256 Times in 238 Posts
Never heard of it. I know seafoam and Chevron techron works as I have used it dozens of times in the past 15 years or so. It works.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 03-03-2013, 11:05 AM
Registered User
 
Last photo:
Join Date: Mar 2012
Posts: 87
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok. cool thanks I will go and get some
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.



« Hi, ya'll | 350 »

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
bucking while cruising. stroker444 Engine 14 05-31-2010 11:35 AM
jerking drivetrain or rearend slipping??? 89camaross Transmission - Rearend 1 09-20-2008 10:08 PM
Bucking in gear at idle Bryan59EC Engine 7 05-21-2007 06:43 AM
hard steering and jerking BadAss_Beaver Suspension - Brakes - Steering 5 11-04-2004 11:20 AM
bucking at 2100 Ktaves1971 Engine 2 06-07-2004 01:27 PM


All times are GMT -6. The time now is 01:06 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.