95 7.3 won't rev passed 1200RPM - 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 11-07-2012, 08:39 AM
Powerstroke.org Rookie
 

Join Date: Mar 2012
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
95 7.3 won't rev passed 1200RPM

Ok so I have a 95 cc dually 7.3 diesel that starts up and idles fine sounds good. When I put into drive or even in neutral or park it won't rev passed 1200RPM? I just replaced the IPR, CPS 3 times and oil, oil filter, no leaks anywhere IDM also replaced with 2 known good ones? Does anyone know what this could be? Is it something db I overlooking? Thanks for the help


Sent from my iPhone using Autoguide.com App
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-08-2012, 04:20 PM
BANNED by Kris
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,797
Thanks: 45
Thanked 96 Times in 91 Posts
Feedback Score: 0 reviews
I am rarely speechless around here but this has got me. Can you take and post a video?
Reply With Quote Quick reply to this message
  #3  
Old 11-08-2012, 04:54 PM
COME ON...ONE TIME!!


 

Join Date: Sep 2007
Location: Fletcher, NC
Posts: 16,650
Thanks: 61
Thanked 54 Times in 53 Posts
Feedback Score: 0 reviews
Could be the hpop is totally dead, could be throttle pedal position sensor, could be the low pressure pump or the pickup not supplying oil to the hpop . How's the fuel filter? Could also be the fuel pump.
Reply With Quote Quick reply to this message
  #4  
Old 11-08-2012, 05:20 PM
Member
 

Join Date: Aug 2012
Location: mill creek wva
Posts: 86
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I'm having same problem just got back together today after new heads finally got it started after hour n half cranking won't rev past 1500. Also water coming out back motor between tyranny a.d motor looks like. I'm completely puzzled.
Reply With Quote Quick reply to this message
  #5  
Old 11-09-2012, 08:28 AM
Powerstroke.org Rookie
 

Join Date: Mar 2012
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Here is a video of my issue, fuel pressure is 50psi at filter hpop seems to be in good order the truck sounds fine at idle just won't do anything tranny fluid is good a new oil is new and good. Check out the video and let me know what you think thanks..

http://i128.photobucket.com/albums/p...98168348E4.mp4


Sent from my iPhone using Autoguide.com App
Reply With Quote Quick reply to this message
  #6  
Old 11-09-2012, 08:47 AM
BANNED by Kris
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,797
Thanks: 45
Thanked 96 Times in 91 Posts
Feedback Score: 0 reviews
That is SO weird. There is no hesitation, popping, stuttering at all. Just black smoke. The smoke only tells me that it is drastically over fueling with not enough air to support combustion. Have you taken apart the entire intake system to look for a restriction (wife had a rat eat through the air filter where you couldn't see it and made a home inside the intake tube blocking the thing up).

Last edited by BigFuel; 11-09-2012 at 09:21 AM.
Reply With Quote Quick reply to this message
  #7  
Old 11-09-2012, 08:50 AM
BANNED by Kris
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,797
Thanks: 45
Thanked 96 Times in 91 Posts
Feedback Score: 0 reviews
Wait, that hiss. Is your EBPV stuck closed? Reach under the turbine output and disconnect the EBPV actuator rod. Pull and wire the Butterfly valve arm toward the turbine. Try again.
Reply With Quote Quick reply to this message
  #8  
Old 11-09-2012, 09:26 AM
BANNED by Kris
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,797
Thanks: 45
Thanked 96 Times in 91 Posts
Feedback Score: 0 reviews
I'm also noticing by watching to the end that it's time to replace your Vacuum pump and check the lines for cracking.
Reply With Quote Quick reply to this message
  #9  
Old 11-09-2012, 04:13 PM
Powerstroke.org Rookie
 

Join Date: Mar 2012
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks big fuel, I was feeling under the weather today so I am hoping to take a look tomorrow, I will disconnect the rod under the output of the turbo and see what happens.. Also where is the vacuum pump located and what hoses should I be looking at? Thanks for all the good advice I hope we can figure this out!!!


Sent from my iPhone using Autoguide.com App
Reply With Quote Quick reply to this message
  #10  
Old 11-09-2012, 04:24 PM
BANNED by Kris
 

Join Date: Oct 2011
Location: Pasadena, CA
Posts: 5,797
Thanks: 45
Thanked 96 Times in 91 Posts
Feedback Score: 0 reviews
Right under the A/C compressor. It has a rubber line that goes back to the firewall and feeds your Brake booster and various other things inside the cab. Pull the line off the booster and hook a vacuum gauge to it while the truck is running. What's it read? When you jumped into your truck the brake light was on but after you rev'ed the motor it went out. May also be why your ABS light is on.

Last edited by BigFuel; 11-09-2012 at 06:52 PM.
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:
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 02:34 PM.


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