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post #1 of 6 Old 08-01-2012, 06:36 PM Thread Starter
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Question Important cruise control question. Please help

I have a very important question. I know on my f250 along with every other vehicle I've ever driven that when your using cruise control and you start down a hill the throttle backs off so you don't start to go past the original speed that you set to begin with. My big question are all cars supposed to do that or will some just hold the throttle and start to speed up dramatically. If anyone could help me out ied be very greatful. Thank you very much

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post #2 of 6 Old 08-17-2012, 05:30 PM
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If it just kept speeding up what would the point of CRUISE control?

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post #3 of 6 Old 08-24-2012, 05:46 AM
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most new vehicles will downshift to try to control excess speed, older ones just reduced throttle to idle, however if that wasn't enough engine braking to hold speed, speed would increase until you braked. i would guess that throttle is backing off but you just don't have the engine braking to hold it on the hill.

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post #4 of 6 Old 08-24-2012, 06:50 AM
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Quote:
Originally Posted by nitrogen View Post
most new vehicles will downshift to try to control excess speed, older ones just reduced throttle to idle, however if that wasn't enough engine braking to hold speed, speed would increase until you braked. i would guess that throttle is backing off but you just don't have the engine braking to hold it on the hill.
^^I second this

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post #5 of 6 Old 08-24-2012, 06:55 AM
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I think the OP was thinking that the vehicle just kept throttling down the hill even if it got way over the speed it was set at.
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post #6 of 6 Old 08-24-2012, 10:05 AM
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Quote:
Originally Posted by 6.0f250firstcar View Post
I think the OP was thinking that the vehicle just kept throttling down the hill even if it got way over the speed it was set at.
Yah. That's why I agreed with that previous explanation. Our trucks will just throttle down, down the hill, letting momentum pick up speed needing to ride the brakes. With this sometimes I will put it in tow/haul to take advantage of engine braking haha

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