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Automatic Car Shifting Question.

Shifting gears on a semi-automatic car?

when ever I get a car with something new to me I find the owners manual and sit down and read all about the things I know nothing about. This is the best way to gain knowledge, if that is not available, then common sense would dictate that the whole idea of a semi automatic is for those who like to play race car driver. so naturally as you slow for that corner ahead (after passing mario andretti) you would downshift to a lower gear to keep the rpm up (for max power) then downshift again on the hairpin, then nail the gas and as you rocket pass danika patrick, you shift up, keeping the rpm in a safe range, as you blow past danika and take the checkered flag. Of course as you pull up to a light, you downshift to second, using the brakes and transmission to slow the car together, leave it in second as you pull up to a light, and as you almost stop then go to first (if it has that) or D its up to you, the idea is to have fun, its not always good to red line your engine every shift, if you notice the shift points in Drive that is where you get your best power from anyhow. so the auto stick, is for race car drivers. good luck, have fun. NO TICKETS.

G35 rough automatic shift?

It always jerks even after a cold start.

I also have this other problem it might contribute to the shift. When I cold start my car and reverse, it makes an odd grinding noise when I put it in D, no hesitation just a grinding noise.

Edit: Only in normal drive mode it jerks, I can easily avoid this jerk by going a little more faster. just in low rpms is the problem

Manually shifting an automatic transmission?

First of all, manually shifting an automatic transmission is not exceptionally hard on the unit. In fact, many carmakers today offer some type of manual control for their automatics. Examples include VW's "Tiptronic" and Chrysler's "slap stick." These electronic control systems give the driver the option of manual up/downshifting, or allowing the powertrain control module to handle the shifting chores for them in a fully automatic mode. There are several fail-safes in the system, such as automatic downshifts if you forget to do so, but from a fun factor point of view, moving the shift lever into the manual slot and bumping the lever forward to upshift and snicking it back to downshift can add measurably to the enjoyment of the driving experience. In light of today's congestion and frustration, shifting the transmission manually might help restore some of the enthusiasm for driving.

Even though your automobile might not have specific manual control mode, I'm sure it does have the conventional "PRND2L" selector, allowing you to up and downshift manually. If you enjoy doing so, by all means shift manually.

Are manual downshifts harmful to the transmission or drivetrain? The PCM won't allow a premature downshift that would over-rev the engine, but obviously, banging the shifter into the next lower gear forcing the engine to rev to high rpm isn't doing anything much good. And remember, the PCM will downshift the transmission automatically when speed or rpm drop below a specific point, or you step on the throttle to accelerate -- so the downshift is going to happen, one way or the other.

If you're downshifting at the same speed and rpm you would choose to do so with a fully manual transmission and it adds to your pleasure in driving, then by all means continue to do so.

What does D3, D2, D1, mean in Automatic cars?

D3, D2, and D1 are just different settings that allow you to control the shifting of the gears to some degree. In D1, the car stays in first gear only. In D2, the car can shift back and forth from first gear to second gear but that's all. So, logically, D3 allows the car to switch at will between first, second, and third gears. For the most part, it's best to leave a car with an automatic transmission in drive because the car has a computer that figures out which gear the car really needs to be in given the conditions (grade of the road, rate of acceleration, etc). However, if you want to go to manual shift, just use the shifter as you would in a stick-shift. Start in D1, shift up to D2 when you want to go into second gear, then D3 for third gear, and back into drive to engage the 4-speed overdrive. Make sense?

My car automatic transmission 2 3 4 are for what ?

If cars today were equipped with manual transmissions, we would have better drivers.
Your car is equipped with a four speed automatic transmission with a lock up torque converter.
If you start out with the lever in "4", the car will start out in 1st, shift to 2nd, shift to 3rd, then shift to 4th gear. But the torque converter will not lock up, so your engine will run at slightly higher rpms. If you are towing a trailer up a long hill and the engine is laboring, a shift to 4th will bring the rpms up, thus allowing the engine to develop more horsepower. More horsepower, less strain.
Let's say you were in the mountains of Colorado and you are heading down hill. Down shifting the transmission to a lower gear will limit how fast the car coasts, thus reducing the need for riding the brakes to control speed.
I grew up driving manual transmissions. More thinking involved which lead to better and safer driving. To me automatic transmissions, traction control, and sometimes ABS brakes "dumb" down the driver. Takes less skill to drive. Which leads to a lot of inattentiveness. Which leads to accidents.
Hope this answers your question.

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