4A question.
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4A question.
I searched and did not find an answer to what I am looking for.
I put the truck in 4A earlier to check it out, but was curious about something.
Traditional 4H tells me that the max speed while engaged is ~55 mph. Does this apply in 4A as well? Or is the system smart enough to figure that out and disengage above certain speeds like the locking rear differential does?
I put the truck in 4A earlier to check it out, but was curious about something.
Traditional 4H tells me that the max speed while engaged is ~55 mph. Does this apply in 4A as well? Or is the system smart enough to figure that out and disengage above certain speeds like the locking rear differential does?
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From: Timbuk3, MI
Excerpted from the 2015 F-150 owner's manual .....
HINT/TIP: You'll find posting in the
-REFERENCE-
.
4A (4X4 AUTO)
Provides electronic control four-wheel drive with power delivered to the front and rear wheels, as required, for increased traction. This is appropriate for all on-road driving conditions, including dry road surfaces, but is especially useful on wet pavement, snow, dirt, or gravel.
(owner's manual) Don't have one -OR- would like a digital, searchable desktop document?Provides electronic control four-wheel drive with power delivered to the front and rear wheels, as required, for increased traction. This is appropriate for all on-road driving conditions, including dry road surfaces, but is especially useful on wet pavement, snow, dirt, or gravel.
Owner's Manuals ««« -click-
» Select Your Year [ Choose One ]
» Select Your Make [ Choose One ]
» Select Your Model [ Choose One ]
»
.» Select Your Year [ Choose One ]
» Select Your Make [ Choose One ]
» Select Your Model [ Choose One ]
»
HINT/TIP: You'll find posting in the
Late Model F150s > 2015 Ford F150
section more helpful/appropriate than General F150 Discussion posts.-REFERENCE-
.
Thread Starter
F-150 Fanatic
Joined: Jun 2015
Posts: 348
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From: North Texas
Originally Posted by gDMJoe
Excerpted from the 2015 F-150 owner's manual .....
HINT/TIP: You'll find posting in the
-REFERENCE-
.
4A (4X4 AUTO)
Provides electronic control four-wheel drive with power delivered to the front and rear wheels, as required, for increased traction. This is appropriate for all on-road driving conditions, including dry road surfaces, but is especially useful on wet pavement, snow, dirt, or gravel.
(owner's manual) Don't have one -OR- would like a digital, searchable desktop document?Provides electronic control four-wheel drive with power delivered to the front and rear wheels, as required, for increased traction. This is appropriate for all on-road driving conditions, including dry road surfaces, but is especially useful on wet pavement, snow, dirt, or gravel.
Owner's Manuals ««« -click-
» Select Your Year [ Choose One ]
» Select Your Make [ Choose One ]
» Select Your Model [ Choose One ]
»
.» Select Your Year [ Choose One ]
» Select Your Make [ Choose One ]
» Select Your Model [ Choose One ]
»
HINT/TIP: You'll find posting in the
Late Model F150s > 2015 Ford F150
section more helpful/appropriate than General F150 Discussion posts.-REFERENCE-
.
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Joined: Nov 2010
Posts: 11,854
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From: Timbuk3, MI
blairian - I have already read the manual, thanks. My question was in regards to whether there was a speed limit, although unstated, that should be observed while using 4A like there is with 4H.
"This is appropriate for all on-road driving conditions, including dry road surfaces."
MEANING: No speed limit (other than that imposed by the ECM. *Which should be ~95MPH)..
Last edited by gDMJoe; Nov 14, 2015 at 11:44 PM.
Thread Starter
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From: North Texas
Originally Posted by ecopat
And you can also drive in 4H over 55, your truck wont explode ;(
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I see these types all the time, "I have 4wd so I can go as fast as I want, and now I'm in a ditch or rolled over!"
Thread Starter
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From: North Texas
Originally Posted by RES4CUE
Exactly! If you have to have it in 4wd then there's no need to be doing 55!
I see these types all the time, "I have 4wd so I can go as fast as I want, and now I'm in a ditch or rolled over!"
I see these types all the time, "I have 4wd so I can go as fast as I want, and now I'm in a ditch or rolled over!"
Seen a few people say "I don't know why I lost control. I have 4WD!" Or the "I don't know how I am stuck! I have 4WD!"
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From: Manassas Va