Ford F150 Forum - Community of Ford Truck Fans

Topic Sponsor
2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

rpm falls off when holding accelerator down

Thread Tools
 
Search this Thread
 
Old 02-08-2014, 08:31 PM
  #1  
Junior Member
Thread Starter
 
SeaHorse's Avatar
 
Join Date: Feb 2014
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default rpm falls off when holding accelerator down
as the title says:
my rpm goes up with gas pedal depressed (in Neutral) but will not hold steady with pedal held steady. Usually falls off about 200 rpm.

Any ideas?
SeaHorse is offline  
Reply Like
Old 02-08-2014, 09:50 PM
  #2  
Senior Member
iTrader: (1)
 
Especial86's Avatar
 
Join Date: Dec 2011
Posts: 5,741
Received 532 Likes on 438 Posts

Default
Originally Posted by SeaHorse
as the title says: my rpm goes up with gas pedal depressed (in Neutral) but will not hold steady with pedal held steady. Usually falls off about 200 rpm. Any ideas?
Might be a Vacuum leak somewhere... Does the truck run good otherwise?
Especial86 is offline  
Reply Like
Old 02-09-2014, 05:51 AM
  #3  
Junior Member
Thread Starter
 
SeaHorse's Avatar
 
Join Date: Feb 2014
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Question
Originally Posted by Especial86
Might be a Vacuum leak somewhere... Does the truck run good otherwise?
Yes seems fine otherwise.
Just as an example: In neutral, foot on brake, increase rpm to 1,000 and hold gas pedal steady, then rpm falls back to 800+/- while holding pedal steady, etc
SeaHorse is offline  
Reply Like
Old 02-09-2014, 09:55 AM
  #4  
Mark
iTrader: (1)
 
techrep's Avatar
 
Join Date: Jan 2009
Location: Va. Beach, VA.
Posts: 36,870
Received 2,417 Likes on 2,118 Posts

Default
mine has done that since new
techrep is offline  
Reply Like
Old 02-09-2014, 10:51 AM
  #5  
Senior Member
 
cleveland lotlizards's Avatar
 
Join Date: Aug 2012
Location: Akron ohio
Posts: 175
Received 8 Likes on 7 Posts
Default
I always thought that was normal .. ?
cleveland lotlizards is offline  
Reply Like
Old 02-09-2014, 01:34 PM
  #6  
Mark
iTrader: (1)
 
techrep's Avatar
 
Join Date: Jan 2009
Location: Va. Beach, VA.
Posts: 36,870
Received 2,417 Likes on 2,118 Posts

Default
probably has something to do with electronic throttle control
techrep is offline  
Reply Like
Old 02-10-2014, 08:30 AM
  #7  
Junior Member
Thread Starter
 
SeaHorse's Avatar
 
Join Date: Feb 2014
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by cleveland lotlizards
I always thought that was normal .. ?

Well, perhaps it is normal...
SeaHorse is offline  
Reply Like

Trending Topics

Old 02-10-2014, 01:28 PM
  #8  
Mark
iTrader: (1)
 
techrep's Avatar
 
Join Date: Jan 2009
Location: Va. Beach, VA.
Posts: 36,870
Received 2,417 Likes on 2,118 Posts

Default
Perhaps
techrep is offline  
Reply Like
Old 02-10-2014, 07:53 PM
  #9  
Member
 
littlejohn's Avatar
 
Join Date: Feb 2012
Location: waterford,MI
Posts: 44
Received 1 Like on 1 Post
Default
It's the Rev limiter so you don't blow your motor.
littlejohn is offline  
Reply Like
Old 02-10-2014, 07:55 PM
  #10  
Senior Member

 
gone postal's Avatar
 
Join Date: Jul 2009
Location: Central NY
Posts: 25,669
Received 434 Likes on 289 Posts

Default
Originally Posted by littlejohn
It's the Rev limiter so you don't blow your motor.
The rev limiter isn't going to kick in at 1000 rpm.
gone postal is offline  
Reply Like



Advanced Search
Quick Reply: rpm falls off when holding accelerator down


Reply Closed Thread Share

All times are GMT -4. The time now is 05:34 AM.