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post #1 of 13 (permalink) Old 06-23-2014, 05:27 PM Thread Starter
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Question 9th gear

So i got up to 9th gear..but when i was going 90.i go to check the gear and it said 7 but when i was going 70 mph..it said 9..im so lost about how changing gears works. Can someone explain it to me?
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post #2 of 13 (permalink) Old 06-23-2014, 05:37 PM
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I don't know why it chooses the gear it chooses I just let it do it's thing. I'm sure it has something to do with the load on the tranny and not just pure speed but that's as far as I go.


I think I'm more concerned with people taking pictures of their dash while speeding down the highway. Just a general request from the board as I've seen this more then a few times on here ... please, no more dash pics unless stopped. We'll believe you, and if we don't, who cares what we think.
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post #3 of 13 (permalink) Old 06-23-2014, 05:40 PM
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I was hoping maybe they had someone show how taking the pictures for them.

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post #4 of 13 (permalink) Old 06-23-2014, 05:47 PM
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Originally Posted by RojStock View Post
I don't know why it chooses the gear it chooses I just let it do it's thing.

that's my take on it.
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post #5 of 13 (permalink) Old 06-23-2014, 05:51 PM
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Originally Posted by Patrick25 View Post
So i got up to 9th gear..but when i was going 90.i go to check the gear and it said 7 but when i was going 70 mph..it said 9..im so lost about how changing gears works. Can someone explain it to me?
From my experience, the 9th kicks in at about 85 mph, on a slight downhill road. Probably at even slower speed with some tailwind, or on a different grade. You also have to understand that at higher speeds (such as 90) the air resistance increases dramatically and the transmission needs to shift down to provide enough torque to keep you going.
Anyhow, that's not something you should be concerned about. Your transmission does the best it can, with respect to desired speed and gas mileage.

Hope it helps

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Last edited by Milan; 06-24-2014 at 01:32 AM.
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post #6 of 13 (permalink) Old 06-23-2014, 05:56 PM
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...the transmission needs to shits down...
Apparently for many on this forum, their transmissions have been having that problem too.
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post #7 of 13 (permalink) Old 06-23-2014, 06:09 PM
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Originally Posted by taatmk View Post
Apparently for many on this forum, their transmissions have been having that problem too.
I'm not sure what problem you are referring to. I just tried to explain the OP why his transmission shifted down @ 90 mph, and that there is nothing problematic about that.

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post #8 of 13 (permalink) Old 06-23-2014, 06:13 PM Thread Starter
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Very well explain @Milan now I understand.

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post #9 of 13 (permalink) Old 06-24-2014, 01:55 AM
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Very well explain @Milan now I understand.
If you are concerned about gas mileage, again from my experience, the sweet spot on a flat road is at about 60-65 mph in 7th gear. This is also where you'll find your vehicle the most responsive to throttle. At least with a V6 engine.

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post #10 of 13 (permalink) Old 06-24-2014, 04:18 AM
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So i got up to 9th gear..but when i was going 90.i go to check the gear and it said 7 but when i was going 70 mph..it said 9..im so lost about how changing gears works. Can someone explain it to me?
We are used to cars shifting up into successively higher gears as we accelerate. But it never goes into 9th while accelerating, at least not at speeds of 87 or less... not for me so far any way. I've seen 9th at speeds between 75 and 87. It only goes into 9th when you're at a high speed AND you slack off on the throttle to a level to just maintain speed on flat or slight downgrade. It's kind of a super-overdrive gear that it uses when it determines there is no longer a need for a gear that is any lower, basically when there is no load on the engine. But the second the engine gets a load on it, say from pressing the accelerator or transitioning to a slight upgrade, it kicks down to a lower gear.

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