99.5 has a miss/buck during slow acceleration - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-09-2010, 05:45 AM
Powerstroke.org Rookie
 

Join Date: Sep 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
99.5 has a miss/buck during slow acceleration

I have a 99.5 6spd. I have noticed that during slow acceleration and some times while cruising, my truck will act like it has a miss and sometimes buck a little. under normal/hard acceleration I dont not seem to have the issue. It just started so Ill try a few different driving scenarios to see if there is one thing that effects it more. I will post more on my findings but if you guys come up with anything, I would love to hear it.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-09-2010, 07:12 AM
Compression Ignition Addict
 

Join Date: Jun 2009
Location: Poplar Bluff, MO
Posts: 1,616
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Check your UVCH conections its very common for them to get loose or burn up like mine did.
Reply With Quote Quick reply to this message
  #3  
Old 10-10-2010, 04:35 PM
Powerstroke.org Rookie
 

Join Date: Sep 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have been playing around with it the truck all day today and it only has the miss when I am speed correcting. Like when your just going 50mph and you drop a couple mph and you just give it just a tiny bit to get it back up and has a miss that comes and goes till i level off or if I give it just a bit more on the peddle then a tiny bit. Would the UVCH cause this problem?
Reply With Quote Quick reply to this message
  #4  
Old 10-10-2010, 04:38 PM
Powerstroke.org Rookie
 

Join Date: Sep 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Also The problem does not happen when I hit large speed bumps or bumpy highways so it makes me think the UVCH isnt loose but I honestly dont know how it would react.
Reply With Quote Quick reply to this message
  #5  
Old 11-05-2010, 04:29 PM
Powerstroke.org Rookie
 

Join Date: Sep 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I got under the valve covers finally and the harness on the drivers side starting to wiggle loose. However it was barely out of position. I grabbed a couple of quarters and cuttem to fit so thats one issue fixed but not the cause of the problem. I have noticed that it starts to do it when the truck is warmed up also I have noticed that now that its gotten very cold over here, when I let it idle to warm up the RPMS dont shoot up anymore. Any ideas?
Reply With Quote Quick reply to this message
  #6  
Old 11-07-2010, 09:18 AM
Member
 

Join Date: Sep 2010
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Does the engine get quieter and you hear like the sound of wind (the turbo im guessing) as the truck loses power and slows down?
Reply With Quote Quick reply to this message
  #7  
Old 11-07-2010, 11:17 AM
Powerstroke.org Rookie
 

Join Date: Sep 2010
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
All my piping is good. From everything ive messed with so far it looking like a bad injector. I am going to take it to a friends shop and put a reader on it and check the values. it runs fine and accelerates perfect.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user 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.



Thread Tools
Display Modes

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



All times are GMT -8. The time now is 09:05 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors