Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)
Sign in using an external account
Register Forgot Password?

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!

LinkBack Thread Tools Search this Thread
Old 07-05-2014, 03:12 PM
SlickWilly001 SlickWilly001 is offline
New User
Join Date: Jul 2014
Posts: 1
SlickWilly001 is starting off with a positive reputation.
1999 5.4 4x4 runs rough between 1200 & 1500 rpm

Truck runs great until I am cruising at 1200 to 1500 rpm's. Acts like it has a high performance cam (doesn't want to accelerate smoothly like the rest of the power band). Kind of acts like its starving for fuel....or air. Not sure which! Check engine light is NOT lit. Thanks for any input.
Reply With Quote
Old 07-06-2014, 07:54 PM
carguy94 carguy94 is online now
Senior User
Join Date: Mar 2014
Location: southern maryland
Posts: 313
carguy94 is starting off with a positive reputation.
get any trouble codes pulled a trouble code will be set before a MIL will usually. any recent repair history tune up. is this the original drive train power train to the truck. how is the idle temperature and gauges.
Reply With Quote
Old 07-06-2014, 07:54 PM

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V8 (4.6L, 5.4L)

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
92 7.3l idles great won't go past 1200 rpm ihf-350 Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 10 06-06-2014 10:47 AM
Off-idle hesitation when cold? quakerj 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 8 04-17-2014 08:17 PM
HELP Please! Hesitation and shuddering 1500-2000rpm's jetskiman6969 1999 - 2003 7.3L Power Stroke Diesel 9 12-21-2013 09:12 PM
Horrible studder/misfire jprix Expedition & Navigator 6 12-20-2012 09:04 AM
my feelings on custom tuned SCT vs old Superchip SuperDutyScaler Computer Chips & Tuners 22 11-08-2012 01:59 PM

All times are GMT -5. The time now is 09:32 PM.

Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup