losing boost - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 Old 12-11-2011, 06:06 PM Thread Starter
Powerstroke.org Rookie
Join Date: Dec 2011
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
losing boost

ive had this 2000 F250 for bout a month now. i live in alabama and it doesnt get tht cold but if its aorund 45 degrees or lower and the truck is cold it makes a loud hissing sound when i give it a constant throttle and i lose all my boost. it stops hissin when u give it more throttle and when it warms up or if the temp outside warms up it usually stops.now it does it some even under full throttle. any ideas?
TylerP92 is offline  
Sponsored Links
post #2 of 3 Old 12-11-2011, 06:11 PM
Compression Ignition Addict
jesilvas's Avatar
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,139
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 27 Times in 25 Posts
Feedback Score: 0 reviews
Second: Search man.
It's normal.
Here - http://www.powerstroke.org/forum/
Then here - 99-03 7.3L General Discussion - Ford Powerstroke Diesel Forum
Then - Winter Operation, Hard Starting, Hissing Sound Etc...
And - Troubleshooting GPR & GP's

2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
jesilvas is offline  
post #3 of 3 Old 12-30-2011, 09:38 PM
Compression Ignition Addict
machinestheman's Avatar
Join Date: Mar 2011
Posts: 199
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
sounds like possibly your egbpv and the hissing is the engine fighting essentially a jake brake i am in ga and just disconnected the thing do a search theirs tons of good material in here to give you more info good luck

01 f 450 6sp 4WD
DIY intake with prefilter, CCV mod, IAH delete, Granatelli big G monitor with electronic fuel pressure sender, sinister diesel coolant filter, muffler delete and hollow cat, IH bellowed up pipes, polished intake spyder, 203 thermostat, billet fpr housing, hpx hard line.
machinestheman is offline  
Sponsored Links

Quick Reply

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


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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