Surging 7.3 - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 Old 04-19-2009, 08:19 PM Thread Starter
Powerstroke.org Rookie
 
'08 F350 FX4's Avatar
 
Join Date: Jan 2009
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Surging 7.3

A friend of mine has a 7.3 that has started to "surge" going down the highway. Additionally, she says that people must think she can't drive a manual transmission because she is now "bunny hopping" down the road, mainly at the top of 2nd and 3rd gear. I thought it might be a semi-clogged fuel filter. Does the 7.3 have two fuel filters like the 6.0 and 6.4? Any ideas what might be causing this to happen? Thanks.
'08 F350 FX4 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 04-19-2009, 08:21 PM
Compression Ignition Addict
 
Hawker's Avatar
 
Join Date: Nov 2008
Posts: 334
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
just the in tank and the bowl at the motor. easiest cure to the surge is a wicked wheel, but the combination of what you're decribing almost sounds like a fuel supply problem, like a fuel pump or something like that.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
99 F-450 Crew Cab
DP 80E/80T/120R
ISSPRO gauges - auto conversion - built trans & billet triple disc
EBPV delete - Wicked Wheel
zoodad-aih delete-ccv


"If a big hammer won't fix it, you've got an electrical problem"
Hawker is offline  
post #3 of 7 Old 04-19-2009, 08:22 PM
Compression Ignition Addict
 
Cj Ford's Avatar
 
Join Date: Apr 2007
Location: Ontario, Canada
Posts: 3,202
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via MSN to Cj Ford Send a message via Yahoo to Cj Ford
only has 1 fuel filter ... you need to get it on a scanner cold be lots of things

1999 F250 XLT 2WD 7.3, 6 spd, South Bend Con OFE, Detroit Truetrac, Tony Wildman tunes, Autometer Boost&Pyro, AFE Stage II, 4" MBRP Exhaust, 2" Daystars, 17x9 DC1 wheels wrapped in 33x12.50 MTZ's

Chris



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cj Ford is offline  
post #4 of 7 Old 04-19-2009, 08:23 PM
Compression Ignition Addict
 
Tony V's Avatar
 
Join Date: Nov 2008
Location: Crane/Evansville, IN
Posts: 7,847
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
ditto on the scanner.

2000 F-250 216k- smoke much?


Facebook: Anthony VanCamp
Add me if you'd like
Tony V is offline  
post #5 of 7 Old 04-19-2009, 11:40 PM Thread Starter
Powerstroke.org Rookie
 
'08 F350 FX4's Avatar
 
Join Date: Jan 2009
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks for the replies. Sounds like she may have to bite the bullet and take it in to the dealer. Not sure when the last time her fuel filter was changed, that's why I thought it might be that. I'll tell her to have someone check out the fuel pump too. Any other ideas? Thx.
'08 F350 FX4 is offline  
post #6 of 7 Old 04-20-2009, 06:59 AM
Compression Ignition Addict
 
99PSD-White's Avatar
 
Join Date: Mar 2009
Posts: 449
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
fuel injectors?
99PSD-White is offline  
post #7 of 7 Old 04-20-2009, 07:06 AM
duct tape & zip ties

 
bigcountrysg's Avatar
 
Join Date: Jul 2006
Location: Willis, MI
Posts: 10,761
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
Quote:
Originally Posted by Hawker View Post
just the in tank and the bowl at the motor. easiest cure to the surge is a wicked wheel, but the combination of what you're decribing almost sounds like a fuel supply problem, like a fuel pump or something like that.
He is not describing Turbo Surge which is what the WW is suppose to prevent.

He is talking about engine surging, which can be caused by fuel supply problem, bad injector, bad cps, or other problem that needs to be found.

You need a diagnostic scanner that is capable of doing KOEO and KOER tests. As well as scanning for DTC's.

Once you have the diagnostic scanner. Scan for DTC's, if none are found then do an injector buzz test, if it passes the injector buzz test, continue with a Cylinder Contribution Test. If it passes the Cylinder Contribution test and no trouble codes are found. Then I would suggest replace the cps.

But I believe the problem will be found with the diagnostic computer and running those two tests.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Your Actions Today, Decide Your Future Tomorrow

2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
bigcountrysg is offline  
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:
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