Need help! 4.7l -
LinkBack Thread Tools
post #1 of 1 Old 06-17-2021, 01:53 PM Thread Starter
Registered User
2005 WK 
Join Date: May 2017
Posts: 62
Need help! 4.7l

Greetings all
I need some help figuring out this engine problem.
05 4.7l heads redone. New seats and valve seals along with HO cams and lifters.
New coils helped some. New lifters also helped some then went backwards.
No engine codes.
Ideal slightly rough and has a small surge in the rpms at constant speeds. Seems more prevalent at the 20,30,40 ranges but does happen at 60
Heavy lifter knock on drivers side.
What am I missing?

05WKwhite is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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 Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome