Power Hungry Performance Forum  

Go Back   Power Hungry Performance Forum > Ford F-150, Expedition, Navigator, Blackwood, Mark-LT, SVT Lightning and H-D Editions > 2009 to 2014 F-150

2009 to 2014 F-150 3.5L, 3.7L, 4.6L, 5.0L, 5.4L, and 6.2L equipped F-150s

Reply
 
Thread Tools Display Modes
  #1  
Old Mon, May 7th, 2012, 11:09 AM
kbates kbates is offline
Whopper Junior
 
Join Date: Nov 2011
Location: Lubbock Tx soon to be Dallas Tx
Posts: 4
kbates is on a distinguished road
Default Odd idle

I have had my custom tunes for about a week now. I have loaded both custom tow tune and custom performance tune, and they both load fine and seem to be mostly good. Truck is 2010 F150 5.4l Fx4.

I did note that the general consensus is to run the performance tune for everyday driving. So that is what I have done until I notice a problem.

The problem being that when the truck is at temp meaning around 208-218 give or take a couple of degrees and the truck in park it will idle and then have a seemed controlled idle up to around 1500-1800 rpms then idle back down. When it does this it is very consistent in how fast it idles up and then down. I did notice when it does this the CHT decrease’s by 1 degree each time.
I did load the stock tune back to see if this problem persisted meaning a mechanical issue and ran the truck all yesterday and could not get it to do it again.
This morning I did load the tow tune to see if the problem arose again. I will update.

Has anyone had this occur?

If not I will try to get ahold of Bill tomorrow.
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -5. The time now is 11:00 AM.


All Contents Copyright 2008-2020, Power Hungry Performance