My "Cat" does a pre-load crouch.
#1
My "Cat" does a pre-load crouch.
Does your car do a pre-load crouch?
With all my cars I have a habit of slipping the transmission into neutral whenever I am at a stop-light/RR crossing etc., where I will be still for ~20 seconds or more.
I have noticed on my 2010 XKR than when I put it back into "D" (with my foot on the brake pedal) the car drops/lowers slightly in the rear. It is only about half to three quarters of an inch, but it is a noticeable crouching at the rear when a load is put back into/on the power train before releasing the brake.
Does anyone else experience this?
With all my cars I have a habit of slipping the transmission into neutral whenever I am at a stop-light/RR crossing etc., where I will be still for ~20 seconds or more.
I have noticed on my 2010 XKR than when I put it back into "D" (with my foot on the brake pedal) the car drops/lowers slightly in the rear. It is only about half to three quarters of an inch, but it is a noticeable crouching at the rear when a load is put back into/on the power train before releasing the brake.
Does anyone else experience this?
#2
Considering I don't do what you describe at stop lights I don't experience the same drop when I start the car and put it in drive. The only thing I think that would fit your description would be if you gun the engine in neutral and then put it in drive prior to the rpm's returning to the idle range.
#4
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Cee Jay (11-10-2017)
#5
#6
What you describe seems normal to me.
There is a nominal torque when in drive at a stop that is held in place by the brakes.
When you keep this nominal force + brakes both applied when not using neutral, the car doesn't change from this stance.
Shifting to neutral lets everything loosen up, and it re-tightens when you go to drive.
There is a nominal torque when in drive at a stop that is held in place by the brakes.
When you keep this nominal force + brakes both applied when not using neutral, the car doesn't change from this stance.
Shifting to neutral lets everything loosen up, and it re-tightens when you go to drive.
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#8
#9
It's just the rotational torque from the drive train vs the rear brakes and how it effects the rear suspension geometry. The rear suspension is designed to collapse under load or tire impact for a more supple ride (that's also why some bushings are soft and some hard).
Read the chassis systems 452 document for info on it.
Read the chassis systems 452 document for info on it.
#10
Some states I have lived in, and in Minnesota where I learned to drive, it is illegal to shift into neutral when stopped, as people tend to forget and then either rev without motion or roll backwards into cars behind them.
Shifting unnecessarily out of drive unloads the contact joints and gears, such as the driveshaft u-joints, ring and pinion, and whatever else inside the transmission. Then when shifted back everything clunks together again. No sense in doing so. Torque converters are designed specifically to AVOID this.
Shifting unnecessarily out of drive unloads the contact joints and gears, such as the driveshaft u-joints, ring and pinion, and whatever else inside the transmission. Then when shifted back everything clunks together again. No sense in doing so. Torque converters are designed specifically to AVOID this.
#11
Someone told you wrong, and someone probably told them wrong, that told them wrong, and some where someone exaggerated.
The only laws about not being in neutral(In any state) are related to down grades; specifically to avoid runaway vehichles and over heating brakes as the intent.
Since the X150 is fairly smart in how it handles a complete throttle off downgrade; you are much better leaving it in gear(from a MPG) standpoint when it comes to downgrades. The only benefit would come in part throttle down grades, but if you can sacrifice a little speed and then speed up later you will come out ahead of being in neutral.
The car will be smart with the AC and electrical charging systems to optimize acceleration and cut throttle. It also shuts the AC off at high RPM when you go full throttle.
Btw, this is how most state laws where laws about neutral exist read.
http://apps.leg.wa.gov/rcw/default.a...true#46.61.630
https://www.leg.state.nv.us/NRS/NRS-484B.html
http://leg.mt.gov/bills/mca/61/8/61-8-362.htm
http://nebraskalegislature.gov/laws/...atute=60-6,182
http://leg.mt.gov/bills/mca/61/8/61-8-362.htm
http://www.legislature.mi.gov/(S(1v3...hlight=neutral
http://www.ilga.gov/legislation/ilcs...qEnd=131300000
Shifting unnecessarily out of drive unloads the contact joints and gears, such as the driveshaft u-joints, ring and pinion, and whatever else inside the transmission. Then when shifted back everything clunks together again. No sense in doing so. Torque converters are designed specifically to AVOID this.
Last edited by Tervuren; 11-10-2017 at 11:56 PM.
#12
This what the Minnesota driver's manual has about Neutral. Someone somewhere exaggerated the regulation to you in order for it to apply to being stopped.
https://dps.mn.gov/divisions/dvs/for...ers_Manual.pdf
https://dps.mn.gov/divisions/dvs/for...ers_Manual.pdf
Stuck Gas Pedal
If your gas pedal sticks, you may be able to free it by hooking your toe
under the pedal and raising it. If this does not work, apply the brakes and
shift into neutral, this will disengage the engine. Next, choose a safe path
and steer to the shoulder of the road. If the shoulder is not paved, switch on
your hazard lights and continue steering the vehicle in a straight path until
you can safely pull over to the shoulder of the road.
If your gas pedal sticks, you may be able to free it by hooking your toe
under the pedal and raising it. If this does not work, apply the brakes and
shift into neutral, this will disengage the engine. Next, choose a safe path
and steer to the shoulder of the road. If the shoulder is not paved, switch on
your hazard lights and continue steering the vehicle in a straight path until
you can safely pull over to the shoulder of the road.
Driving on Narrow Roads and Hills
When you approach curves on narrow roads, or in areas where brush and
trees block your view of the road ahead, you can use your horn to warn
other drivers or pedestrians that you are on the road.
It is not advised to coast down steep hills with your transmission in
neutral. On steep hills, check your speedometer frequently. Vehicle
When you approach curves on narrow roads, or in areas where brush and
trees block your view of the road ahead, you can use your horn to warn
other drivers or pedestrians that you are on the road.
It is not advised to coast down steep hills with your transmission in
neutral. On steep hills, check your speedometer frequently. Vehicle
#13
#14
#15
This is just not true. Find me the law.
Someone told you wrong, and someone probably told them wrong, that told them wrong, and some where someone exaggerated.
The only laws about not being in neutral(In any state) are related to down grades; specifically to avoid runaway vehichles and over heating brakes as the intent.
Since the X150 is fairly smart in how it handles a complete throttle off downgrade; you are much better leaving it in gear(from a MPG) standpoint when it comes to downgrades. The only benefit would come in part throttle down grades, but if you can sacrifice a little speed and then speed up later you will come out ahead of being in neutral.
The car will be smart with the AC and electrical charging systems to optimize acceleration and cut throttle. It also shuts the AC off at high RPM when you go full throttle.
Btw, this is how most state laws where laws about neutral exist read.
Chapter 46.61 RCW: RULES OF THE ROAD
https://www.leg.state.nv.us/NRS/NRS-484B.html
61-8-362. Coasting prohibited.
Nebraska Legislature
61-8-362. Coasting prohibited.
Michigan Legislature - Section 257.678
625 ILCS 5/ Illinois Vehicle Code.
I'm curious what is in your owners manual compared to mine?
Someone told you wrong, and someone probably told them wrong, that told them wrong, and some where someone exaggerated.
The only laws about not being in neutral(In any state) are related to down grades; specifically to avoid runaway vehichles and over heating brakes as the intent.
Since the X150 is fairly smart in how it handles a complete throttle off downgrade; you are much better leaving it in gear(from a MPG) standpoint when it comes to downgrades. The only benefit would come in part throttle down grades, but if you can sacrifice a little speed and then speed up later you will come out ahead of being in neutral.
The car will be smart with the AC and electrical charging systems to optimize acceleration and cut throttle. It also shuts the AC off at high RPM when you go full throttle.
Btw, this is how most state laws where laws about neutral exist read.
Chapter 46.61 RCW: RULES OF THE ROAD
https://www.leg.state.nv.us/NRS/NRS-484B.html
61-8-362. Coasting prohibited.
Nebraska Legislature
61-8-362. Coasting prohibited.
Michigan Legislature - Section 257.678
625 ILCS 5/ Illinois Vehicle Code.
I'm curious what is in your owners manual compared to mine?
The following users liked this post:
Cee Jay (11-11-2017)
#16
When I had my driving lessons back in 84, it was considered good practice to apply the handbrake and put the car in neutral. The reason being that rear end accidents are quite common at junctions and if you are in drive holding it on the brake, the first reaction is to lift your foot off the brake and then you hit the person in front and so on..... There is nothing wrong or stupid to make the car safe when stationary at a junction
#17
Having driven manual transmission cars most of my life most of the time we would down shift as we approached a light or stop or yield sign. While stopping for a light the general practice was to shift into neutral to take stress off of the clutch/pressure plate and throw out bearing. This was also acceptable during my NY state driving exam back in 1961. Also back then most of the cars were 3 on the tree sticks. With the growth of automatics this practice went away and was even outlawed. With todays "right on red" laws the need for this practice is obsolete. So unless you want to play the ricer gun it game at the light I don't see a need to waste time by putting it in N. My 2 cents
The following users liked this post:
Cee Jay (11-11-2017)
#18
#19
I'm curious if you could dig up anything to support that it was illegal? I want to know if it is exaggeration passed down from person to person, or outdated information passed down from person to person.
#20