01 7.3 Hard start and very rough idle... At first. - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 10-13-2010, 08:22 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2010
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
01 7.3 Hard start and very rough idle... At first.

Hi all,
I have a 2001 7.3, pure stock. No chips, no mods. Over the past few years, it has been progressively harder to start (turns over, but no catch) and running much rougher once it does (like it hits on 5 cylinders). After getting the rpms up and the temp up to operating range, it smoothes right out.
I have no codes, and had a buzz test done, 2 sounded different, but fired. I just replaced the GPR on a hunch, but no change. It is easier to start once the block heater is used... Had oil changes, new batteries, even tried sea foam thinking it was dirty injectors. Nothing makes a difference so far. GPs ohm out fine.
What else should I try?
Any help would be GREATLY appreiated!
S- Ranch is offline  
post #2 of 3 Old 10-13-2010, 08:27 PM
Compression Ignition Addict
 
sldghamr's Avatar
 
Join Date: Jan 2007
Location: Santa Rosa, CA
Posts: 2,026
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
ideas of things to check:
1. oil resevior for the HPOP
2. wiring for injectors under valve covers.

if you see a light at the end of the tunnel, it's probably just a photon torpedo
sldghamr is offline  
post #3 of 3 Old 10-14-2010, 06:55 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Oct 2010
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks Sldghamr, Im going to do some digging to find out how to test those. Ill let you know the results!
S- Ranch is offline  
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:
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

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