cruise control question/problem
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Junior User
Joined: May 2005
Posts: 65
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From: Hanover, PA
cruise control question/problem
hey, I have a 2006 f-350, diesel, ext. cab, 4x4. For some reason when I get up to about 71 mph on the turnpike and I hit the set accel button, the mph drops to about 67ish. Then it speeds up to about 75ish and then steadys itself around 73mph. Also if I hit the set accel button, it jumps up about 3-4mph. Is this normal for a diesel? I have cruise control on my 2005 f-650 and it doesn't seem to do that. Thanks for the info!
Alex
Alex
Posting Guru
Joined: May 2003
Posts: 1,990
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From: Middleburg, FL
Mine's erratic sometimes. I've had it do what you describe and I've also had it set at 5 mph above where I wanted it to. It seems to be sensitive as to whether you're accelerating, decelerating, or at constant speed when you attempt to set the speed. My 2000 had similar characteristics.
Senior User
Joined: Sep 2006
Posts: 140
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From: Southern IL
I have a 06 f350 crew cab 6.0L and have noticed the same problem. Just today I set it at about 72-73 range and dropped just below 70 then it came back up to speed. It has done that since it was new. I have just accepted that is the way it works. If you find a fix let me know.
Senior User
Joined: Aug 2001
Posts: 300
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From: Kentucky
My '05 has acted like that since new, (21,000 mi.) but it "hunts" at every grade change on hi-way. I saw a thread the other day here and understood that the SCT programmer would cure most of the "ills" with this TorkShift. I am spoiled with my old '01 PSD as it has always re-acted great to cruise settings and pulling on most any road. I have my '05 in the shop presently (1st time) and they are going to check all modules for "programming" glitches.
Bill in KY
Bill in KY
Postmaster
Joined: Dec 2003
Posts: 4,196
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From: Arizona
Originally Posted by hodgekuter
My '05 has acted like that since new, (21,000 mi.) but it "hunts" at every grade change on hi-way. Bill in KY
Senior User
Joined: Aug 2001
Posts: 300
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From: Kentucky
Originally Posted by blackhat620
Does transmission "hunt" when your Loaded/Towing, empty or both?
Bill in KY
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Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
hodgekuter,
Well that is definitely not correct. The transmission shouldn't act that way all the time.
It could be a bad TCC solenoid, TCM module or need an udate to the programming in the TCM.
I would take it into the dealer and let them check it out.
Hope this helps
Well that is definitely not correct. The transmission shouldn't act that way all the time.
It could be a bad TCC solenoid, TCM module or need an udate to the programming in the TCM.
I would take it into the dealer and let them check it out.
Hope this helps
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