Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2004 - 2008 Ford F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 07-26-2014, 09:12 AM   #1
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default Very weird cruise control behavior

First, the only mod to my 2005 5.4 is a Gryphon. I drive the same route to work every day. It's a country road and I drive it at about 60MPH. 11 miles into the trip is a stop sign at which I make a right hand turn. I use the cruise control without issue up to this point. After the stop and right turn, I accelerate to a little over 30 MPH and then hit the resume button to engage the cruise and bring the truck back to highway speed. The cruise engages and the truck starts to accelerate. After about 4 seconds, the cruise disengages. The dash light goes off and I have to hit resume again. The cruise engages again and I don't have any more problems.

The really weird thing is, this only happens at that specific corner. It's happened 4 times on my way to work and twice on my way home recently. I've used the cruise extensively, including to accelerate up to highway speed from ~30MPH in many other places, and never had an issue. It's like that stop sign and turn out in the country is in the Twilight Zone.... There is a graveyard right there, lol. Anyone have any idea what to check? I'm not hitting the brake. In fact, the last time it happened I had hooked my foot under the brake pedal to pull it up to eliminate that possibility.
VTX1800N1 is offline   Reply With Quote
Old 07-26-2014, 09:40 AM   #2
Senior Member
 
Join Date: Feb 2014
Location: Birmingham, Alabama
Posts: 426
Mentioned: 1 Post(s)
Thanked 30 Times in 29 Posts
Feedback Score: 0 reviews
Default

That is a weird one. Is there a bump in the road at that turn? Maybe there's a loose connection somewhere?
lewissa81 is offline   Reply With Quote
Old 07-26-2014, 10:38 AM   #3
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default

No unusual bumps there, and certainly worse ones before I get there that do not affect the cruise.
VTX1800N1 is offline   Reply With Quote
Old 07-27-2014, 01:10 AM   #4
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default

Happened again on the way to work tonight. Exact same place. Friggin' weird....

Last edited by VTX1800N1; 07-27-2014 at 03:04 AM.
VTX1800N1 is offline   Reply With Quote
Old 07-27-2014, 01:32 AM   #5
Senior Member
 
powerranger262's Avatar
 
Join Date: Jun 2011
Location: Hartford, WI
Posts: 2,210
Mentioned: 6 Post(s)
Thanked 181 Times in 149 Posts
Feedback Score: 0 reviews
Default

Sounds like a clock spring issue to me.
__________________
2007 F-150 SCREW 5.4L 4wd
K&N drop-in, Pioneer AVH-3300BT, Kenwood 6.5 components, Infinity coax., 800W Kenwood to JL Stealthbox, MBRP XP Series, Drilled/slotted rotors, Bully Dog GT, 2.5" HBS level, Advance Cover, Weathertech liners, 325/60/18 Terra Grapplers, EZ down tailgate damper, LED swap, LED puddle lights
powerranger262 is offline   Reply With Quote
Old 07-27-2014, 03:05 AM   #6
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default

There's no open recall for it on my truck, so I assume it's already been performed.
VTX1800N1 is offline   Reply With Quote
Old 07-27-2014, 06:20 PM   #7
Junior Member
 
Ob2zentner's Avatar
 
Join Date: Dec 2011
Posts: 8
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Do you have center console shifter? If so, can you put into gear with engine running without putting foot on brake? If you can put into gear with foot off brake, most likely you have a bad shift interlock with a burned out resistor in interlock. Will cause cruise control symptoms you describe intermittent to complete fail of cruise control. Interlock is inside center console on driver side attached to shifter. Replace interlock or if you can soider well replace resistor. Search form for shift interlock solenoid on what resistor to replace and or YouTube I think its video 17 will show bad resistor in shift interlock solenoid. The dealership calls it I believe shift actuator assembly.
Ob2zentner is offline   Reply With Quote
Old 07-27-2014, 09:56 PM   #8
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default

Nope, column shift six passenger crew cab.
VTX1800N1 is offline   Reply With Quote
Old 09-03-2014, 10:15 PM   #9
Sheep Dog
 
Join Date: Nov 2012
Posts: 1,389
Mentioned: 0 Post(s)
Thanked 154 Times in 102 Posts
Feedback Score: 0 reviews
Default

I think I narrowed this down to my Edge programmer. If I apply more than 1/3 throttle from a stop, the problem happens every time. Less than 1/3, and it never happens. Since applying the Edge tune, the cruise control has acted different. It accelerates to 2MPH past the set point and then settles back to the set point when using the accel or resume function. It never did that on the stick tune. I'll have to set it back to stock to test my theory.
VTX1800N1 is offline   Reply With Quote
Old 09-03-2014, 11:51 PM   #10
Member
 
Join Date: May 2014
Location: Saskatoon sk
Posts: 99
Mentioned: 1 Post(s)
Thanks: 0
Thanked 6 Times in 5 Posts
Feedback Score: 0 reviews
Default

Something to check that I ran into before was the anti lock brakes kicking out cruise control the tone ring had a crack in it and it would kick whenever doing a turn under acceleration it was on a dodge mind you buy you never know it may be like that on the ford.
Newfiedan is offline   Reply With Quote
Old 09-03-2014, 11:51 PM
 
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 08:30 PM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.