Lose power when driving at 55-65 - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 Old 12-20-2012, 03:26 PM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Lose power when driving at 55-65

Every now and then while I'm driving on the way either with heavy acceleration merging or constant speeds of 55-65, my 7.3 will start to shutter when I drop below 45. It's a violent shutter with a real rough idle and once I'm below 45 I can't accelerate pas that, it doesn't happen every time but more often then not. I have an early 99 3504x4 with 187xxx miles. After I let it sit for 30 min to an hr it's back to normal. There is no check light coming on when this happens also. I replaced the pick up tube in the tank, fuel filter, installed a riffraff reg return, terminator hpop, new ipr and pigtail, air dog fuel seperater. I have a ts 6 pos chip as well, anyone have any ideas what this could be or what else I should look at. Thanks for any help.



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 is offline  
post #2 of 17 Old 12-20-2012, 04:02 PM
Compression Ignition Addict
 
miked.'s Avatar
 
Join Date: Oct 2008
Location: killen, alabama
Posts: 387
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
cam position sensor? guessing thi, i am sure somebody will chime in.
miked. is offline  
post #3 of 17 Old 12-21-2012, 10:19 AM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I'm replacing the map and cam sensors and the idm today, anything else?



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 is offline  
post #4 of 17 Old 12-22-2012, 12:30 AM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Ok I put the idm in and the truck shut down when my chip was plugged back in, so I'm thinking its chip related? But idk how to fix that, should I just send it back or is there something that can be done?



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 is offline  
post #5 of 17 Old 12-22-2012, 12:35 AM
Mod Newbie

 
dhanna6powerstroke's Avatar
 
Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 13,156
Thanks: 6
Thanked 143 Times in 135 Posts
Mentioned: 0 Post(s)
Quoted: 17 Post(s)
Feedback Score: 2 reviews
You talking about the PCM that slides inside the firewall?

dhanna6powerstroke is offline  
post #6 of 17 Old 12-22-2012, 12:43 AM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
No the idm inside the lil fender guards. But the chip is plugged in to the PCM by the firewall



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 is offline  
post #7 of 17 Old 12-22-2012, 12:48 AM
Mod Newbie

 
dhanna6powerstroke's Avatar
 
Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 13,156
Thanks: 6
Thanked 143 Times in 135 Posts
Mentioned: 0 Post(s)
Quoted: 17 Post(s)
Feedback Score: 2 reviews
Ahh, ok. I never had any IDM issues with my 95 so I'm not sure if the programming is different from one to another. If so, that could be the issue, if not, then I'd say the chip has a bad connection where it slides onto the board. That's the most likely issue with the condition you're describing.

dhanna6powerstroke is offline  
post #8 of 17 Old 12-22-2012, 01:29 AM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Yea that's what it looks like cuz when the chip is in and the truck running, if you touch the chip the truck dies so I gotta talk to thoroughbred bout a new one or a diff type I guess. Unless there's a way to keep constant pressure on to hold it tight that I'm missing...



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 is offline  
post #9 of 17 Old 12-22-2012, 01:32 AM
Mod Newbie

 
dhanna6powerstroke's Avatar
 
Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 13,156
Thanks: 6
Thanked 143 Times in 135 Posts
Mentioned: 0 Post(s)
Quoted: 17 Post(s)
Feedback Score: 2 reviews
Quote:
Originally Posted by TxRanger3006 View Post
Yea that's what it looks like cuz when the chip is in and the truck running, if you touch the chip the truck dies so I gotta talk to thoroughbred bout a new one or a diff type I guess. Unless there's a way to keep constant pressure on to hold it tight that I'm missing...
I pulled the PCM and taped my chip in so it couldn't move. I don't know if you've ever pulled yours but you don't have to remove inner fender well to do it.

dhanna6powerstroke is offline  
post #10 of 17 Old 12-22-2012, 02:15 AM Thread Starter
Powerstroke.org Rookie

 
TxRanger3006's Avatar
 
Join Date: Feb 2012
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I've pulled both my IDM was behind the fender well and my PCM by the firewall, I haven't tried replacing the PCM though but il try taping the chip in there first like ya said and see if that helps.



1999 F350 7.3 PSD 4x4 CCLB
Rough Country 6in lift with 37 BFGs
TS 6 POS Chip, 5in straight pipe, 6637 intake, T500 HPOP, Air Dog Fuel System, Riffraff FRx


TxRanger3006 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