Dumb quwstion - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 03-22-2008, 04:33 PM

Join Date: Aug 2007
Posts: 42
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Dumb quwstion

I was driving in last night when I noticed something strange.I was hauling some jugs of diesel in my bed.I tapped my brake, to light up the bed.Checking to see if any jugs had fell over.When I tapped the brake the truck geared down.Tapped it again and it geared up.Then I tried it going down a hill.It was like the truck dropped into neutral.Are these truck susposed to do this?By the way my truck has a rebuilt tranny with a h/d tc.And it shifts like crap.Way to hard for me.
Reply With Quote Quick reply to this message
Sponsored Links
Old 03-22-2008, 04:37 PM
Compression Ignition Addict

Join Date: Dec 2007
Location: Flint, MI
Posts: 4,057
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yes. It actually shuts off the injectors (or some of them) I believe (if it's an auto)I'm not sure HOW it does it, I'm anxious to know. If you hit the brake and let go you're coasting then if you slow down more it will drop back to idle eventually. It does it on it's own if it coasts far enough, around 1000rpms it'll drop to 680-650(idle speed). If you are going fast (55 or over ... ish) and break hard it'll kinda go like "brup... brupbrup...brup... brumbrumbrumrbrum" back to idle. OR if you slow down fast and then get on it a lil again (say someone decides to STOP and then you go around them) it'll have shifted down so it sounds kinda like "woooOOOOOOOMM" like it neeeeds to shift, and it will when the rpms kick up for it.
It's part of the engine braking. I love it, I think it's awesome.

Last edited by TurboSevenThree; 03-22-2008 at 04:42 PM.
Reply With Quote Quick reply to this message
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:
What state or province do you live in?
Security Question
*Required, this field is not shown to others. Enter the last two characters of the word "Powerstroke"
Security Question #2
*Required, this field is not shown to others. "While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State the animal mentioned in the sentence above."
Please select your insurance company (Optional)


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 02:22 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.