HELP! 08 f150 bogs down - F150online Forums

Go Back  F150online Forums > Powertrain & Mechanical > V8 Engines
HELP! 08 f150 bogs down > HELP! 08 f150 bogs down

HELP! 08 f150 bogs down


Old 02-28-2011, 08:37 PM
Senior Member
Thread Starter
Join Date: Aug 2005
Location: LOUISIANA,
Posts: 139
HELP! 08 f150 bogs down

Hello, I have a 08 f150 with 100000miles and just recently it started to bog down under load, I have changed plugs (with oem) o2 sensors (oem)fuel filter, cops, maf,

I have ran 4 tanks of gas threw it now from place i know the fuel is good, an still acts weird. I can be goin down the road and it seems like i hit a head wind when i pull trailor an when i start giving more throttle it does nothing till i hit down shift trigger.

Any ideas would be appreciated.
Reply With Quote
Old 02-28-2011, 10:17 PM
Technical Article Contributor
Join Date: Oct 2006
Location: Michigan
Posts: 1,771
I take it you have no code. Could be the throttlebody sticking. My son had the same problem on his 2006 5.4. It finally threw a code and it was indeed the throttle body hanging up and not reacting to the pedal action. It has been an issue on some 5.4's especially in cold climates which I don't believe you reside in but it may not be a true factor.

Last edited by DYNOTECH; 02-28-2011 at 10:21 PM.
Reply With Quote
Old 03-04-2011, 12:29 AM
Senior Member
Thread Starter
Join Date: Aug 2005
Location: LOUISIANA,
Posts: 139
Thanks for reply, but i tested it today and was okay. So i put my stock tune and airbox back on and now the truck runs fine.

Why would all the sudden truck start acting like its running out of fuel, but with stock tune run fine?

Im at a lost
Reply With Quote

Related Topics
Thread Starter
Last Post
2004 - 2008 F-150
07-25-2015 10:59 PM
Site Vendor Specials & Classifieds
07-17-2015 10:25 AM
07-12-2015 12:41 AM
1997 - 2003 F-150
07-09-2015 08:30 PM
2009 - 2014 F-150
07-09-2015 10:03 AM

Thread Tools
Search this Thread
Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


All times are GMT -4. The time now is 03:26 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: