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Questions tagged [manual-transmission]

A transmission that is controlled by the operator of the vehicle to select an operator desired gear.

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105 votes
17 answers
275k views

Does Downshifting (Engine Braking) Cause Extra Wear and Tear?

Does the act of downshifting to slow your vehicle down have any negative side affects? I don't downshift more than one or two gears at a time and I let out on the clutch slow enough that I don't rev ...
Gary's user avatar
  • 1,203
27 votes
10 answers
78k views

Manual transmission at stop: 1st with clutch in, or neutral with clutch out? -OR- Throwout Bearing wear

When sitting in traffic or at a long red light, is the Best Practice to have the car in 1st gear with your foot on the clutch, or in neutral with your foot off the clutch? Some say that you should be ...
mac's user avatar
  • 5,313
26 votes
6 answers
190k views

Clutch less shifting - why does it work? Is it bad?

I have been driving stick for 15 years and within the last year I learned I can shift gear without the clutch. Normally the transmission will not let me shift gears without using the clutch. However,...
Nelson's user avatar
  • 508
22 votes
11 answers
55k views

Need I press clutch pedal while starting my car in neutral?

As I know, clutch pressing and neutral gear both disengage the engine from wheels. So will it matter if I do not press the clutch if I start in neutral?
Dwiparna Datta's user avatar
22 votes
3 answers
5k views

How do the latest automatic transmissions match the efficiencies of manual gearboxes?

Most people know that for old or even somewhat old cars, manual transmissions are more efficient. Recently automatic cars have become almost as efficient or even as efficient as manuals. I was ...
user180969's user avatar
22 votes
3 answers
51k views

WHY does an engine stall? (manual transmission)

Before you write off my question as one that's been answered a million times already, I want to clarify. I understand that the engine needs to go a certain rpm and when you try to engage the clutch ...
pauliwago's user avatar
  • 321
20 votes
7 answers
5k views

Are manual transmission cars disappearing? [closed]

You don't have to be an expert to notice that over time, the percentage of manual transmission cars has lowered. Automatic cars are not only more popular, but more comfortable, easier to use and ...
Gabe12's user avatar
  • 217
20 votes
2 answers
32k views

Why is towing a manual transmission car, in neutral, with the drive wheels on the ground, considered safe?

It is clear that cars with automatic transmissions cannot be towed with any drive wheels on the ground, engine off, in neutral, because the torque converter powers the lubrication pump for the ...
Narcotixs's user avatar
  • 745
19 votes
3 answers
59k views

Lugging the Engine (Manual Transmission)

So...lugging the engine obviously isn't something that is good. But why? For example when you feather a clutch to get the car moving, it lugs for a quick moment when you hit the catch point (When ...
user avatar
18 votes
11 answers
32k views

What's the best gear to leave a manual vehicle in when parked? [closed]

I've been told that reverse is the "strongest" gear, so in a manual transmission vehicle you should park your vehicle and leave it in reverse in the event of a parking brake failure. Others have said ...
William's user avatar
  • 651
17 votes
4 answers
10k views

Why does the rear of my vehicle sink when I apply the handbrake on a downward gradient?

This is something that I've always wondered. I'm no mechanic (web developer, actually) with very basic knowledge of vehicle mechanics so I can only guess at something like brake pipe pressure being ...
Kallum Tanton's user avatar
17 votes
2 answers
15k views

Why is it sometimes hard to engage reverse gear in a manual transmission?

When shifting from any gear other than 1st (while standing still, obviously), sometimes the reverse gear doesn't fully engage and the shifter will pop back to neutral. So I have to shift to 1st gear ...
user60481's user avatar
  • 1,339
16 votes
3 answers
54k views

Is it harmful to drive at high rpms

Does driving at high RPMs (3000-3500) in a manual transmission car cause any extra wear and tear to any mechanical parts? It obviously hurts gas mileage, but does it hurt anything else?
purpleACR's user avatar
  • 707
16 votes
2 answers
89k views

Engine revs high 5th gear manual transmission

What might cause a car with a manual transmission that in 5th gear when given a punch of gas revs to very high rpms – with no power transferred to the wheels (i.e. the tachometer and speed go ...
Brian M. Hunt's user avatar
15 votes
4 answers
8k views

Why do 5 and 6-speed transmissions typically need different gear ratios?

My 2013 Subaru WRX has a 5-speed manual, and I long for it to have a 6th gear when cruising on the highway. A friend has a 2012 Subaru STI with a 6-speed manual, and I noticed his car runs through ...
Trevor D's user avatar
  • 1,193
15 votes
5 answers
91k views

How difficult is it to rebuild a transmission?

I have a 1984 Toyota Supra that is now exclusively a track car. The last round out we let some less experienced drivers take the wheel and they basically destroyed the transmission. Nothing but 4th ...
Mike Deck's user avatar
  • 588
15 votes
5 answers
26k views

Causes of early clutch failure EXCLUDING driver style

UK 61 plate, Ford Diesel Mondeo Estate, Econetic: clutch replaced at 31,800 miles; failure caused by 'driver style' I use my car daily for commuting and for business. It's supplied to me as a company ...
John's user avatar
  • 151
14 votes
9 answers
13k views

How to add a 7th gear to a car to enhance fuel economy?

Let's say there's a 6-Gear manual transmission car, whose 6th gear equals 2000 rpm at 100 km/h (~60 mph). How can one theoretically add a 7th gear that can maintain the same speed at 1400 rpm in ...
neverMind9's user avatar
14 votes
5 answers
5k views

What are the pros and cons for the two possible "gear directions" when parking the car on a hill?

Let's suppose I leave my car in gear when parking on a hill (besides using handbrake and turning the wheels towards/away from the curb, depending on the direction I'm parking in). In case that matters,...
Attilio's user avatar
  • 349
14 votes
5 answers
103k views

Switching from Reverse to Drive - always stop completely?

I've been told by a couple people that it's really bad for a car to be shifted from Reverse to Drive while the car is still moving backwards. Is this true? In my experience: On automatic cars, this ...
Sunyaat's user avatar
  • 143
14 votes
1 answer
7k views

Is reverse gear in a manual transmission equivalent to any other gear?

Question is pretty well summarized in the title. If we were to order gears in terms of power provided, where would reverse fall between gears 1-5 on a manual transmission vehicle? Does it vary by ...
CaptainCalvert's user avatar
13 votes
4 answers
106k views

What disadvantages a car with 4-speed transmission have compared to 5, 6 or 7 speed with similar engine?

This seemed to be most relevant site to ask my question. I am planning to purchase a new car and my shortlisted car has 4 speed automatic and 1.6 litre engine. The thing that worries me is that it ...
SpeedBirdNine's user avatar
13 votes
4 answers
12k views

Is it OK to skip gears on a motorcycle?

I'm not sure if this is on topic, but I'd like to know the answer before it comes a repair question. I have a Y2K Triumph Speed Triple - great bike. First gear comfortably takes to 90km/h. Needless ...
dave's user avatar
  • 634
13 votes
6 answers
9k views

What would happen if you shifted into reverse while you are going forward?

First, I am talking about manual cars and I know this is considered impossible because of the synchronized gears, but lets suppose that you can manage to shift gears (For example you could shift into ...
Pablo Matias Gomez's user avatar
12 votes
2 answers
31k views

Does my electronic parking brake remain engaged if I disconnect the battery?

I have a manual Audi A4 with an electronic parking brake. For safety reasons, I'm planning on leaving the battery disconnected for about a month while I do a variety of cosmetic work on the vehicle (...
William's user avatar
  • 651
12 votes
4 answers
99k views

Optimal RPM range for manual transmission

Are there optimal RPM ranges for different vehicles? I've been told it's better for the engine to drive at slightly higher RPMs (e.g. 2500-3000 for my Tacoma) than low (1000-1500). I understand a ...
amphibient's user avatar
  • 6,663
12 votes
2 answers
8k views

Car won't come out of reverse gear unless rolling

I have a 1989 Nissan Skyline R31 and when I put it into reverse, it will refuse to come back out of gear. The clutch was changed a few thousand km's ago and has had this problem recently. The only ...
user26925's user avatar
  • 121
11 votes
1 answer
3k views

My (manual) transmission won't engage any gear 1 day after escaping bog

I ended up driving my front wheel drive manual sedan down a road meant for 4wd's due to inadequate signage (and poor judgement on my part). I saw a river and stopped before it, unfortunately the road ...
Bruno's user avatar
  • 213
11 votes
9 answers
61k views

Durability of automatic transmission boxes versus durability of manual transmission boxes? Their lifetimes?

My friend is against cars with automatic transmission because he thinks that they break easily and that their repairing cost a lot. He thinks that it is impossible to maintain an automatic ...
hhh's user avatar
  • 451
11 votes
5 answers
95k views

Is it bad to drive slow at low rpms in 4th or 5th gear? Do you get better gas mileage?

Obviously running your engine at too high an RPM for too long isn't good. But what about running it too low? not so low that it stalls or lugs, but within around 1,000 RPM? Would you get better ...
Jerreck's user avatar
  • 856
11 votes
1 answer
16k views

Why does my vehicle still stay in gear when I press clutch to floor?

I've read these posts but I still don't fully undestand how a clutch works. Clutch Test Clutch Adjust Clutch Troubleshoot Clutch Has Low Catch A few weeks a go my mechanic replaced the clutch master ...
zundarz's user avatar
  • 441
10 votes
6 answers
17k views

Is it possible to have a manual transmission electric car?

Reading about the new supercar from VW, I distinctly noticed when the author specifically mentioned shifting to "drive". I know the car in article is an automatic, but it got me thinking. Is it ...
Throsby's user avatar
  • 201
10 votes
2 answers
109k views

Parking --- in gear or neutral? [closed]

This question is discussed all over the internet, but it seems to be just a voting procedure. I'd like to get a high-quality answer, and, since I couldn't find it on SE, I'll ask it again here. With ...
texnic's user avatar
  • 295
10 votes
1 answer
3k views

How does Audi Crown Gear Center Differential work?

I'm trying to understand how the engagement of the clutches is varied. I see the power is transmitted through the center input shaft and is transmitted through the four pinion gears, but I don't ...
mmmlll lis's user avatar
9 votes
6 answers
5k views

Can I confirm clutch slippage by shifting without disengaging the clutch (while stopped)?

This question got me thinking about a possible test that anyone driving a manual transmission could perform to diagnose severe clutch plate slippage: Engage handbrake, make sure there is nothing in ...
Zaid's user avatar
  • 39.2k
9 votes
3 answers
7k views

When stopping, should I put the transmission in neutral?

When I have to stop the car but I know that I will be moving again soon, on the red light for example, should I shift to neutral? When I was learning how to drive, my instructor said that there is no ...
Paulostation's user avatar
9 votes
3 answers
2k views

How to find out if my non-fuel injected car has a rev limiter?

I'm driving a 1991 Citroen BX TGE16 which doesn't use fuel injection and I'm worried it doesn't have any fuel and spark cut off system so I don't over do it when downshifting or engine breaking. Can ...
EChan42's user avatar
  • 1,005
9 votes
3 answers
3k views

Skipping gears when downshifting

Is it bad to skip gears when downshifting manually, e.g. from 4th directly down to 2nd etc?
amphibient's user avatar
  • 6,663
9 votes
3 answers
28k views

Grinding when shifting into 1st from a stop

My car (2013 Ford Focus, 12k miles, 5 speed manual) suddenly started to grind when shifting into 1st from a stop about halfway through my commute home. I realized that if I depress the clutch for long ...
the-nick-wilson's user avatar
9 votes
3 answers
9k views

Is it common to fail engaging first gear or a manual transmission car occasionally?

I have a problem with my 2011 Toyota Yaris manual transmission car where the first gear occasionally doesn't engage when at standstill. This happens rarely, probably once per month. What I do to get ...
juhist's user avatar
  • 14.6k
9 votes
2 answers
6k views

Why is my shifter lever extremely stiff or hard to shift gears?

My 1985 Yamaha 750 Maxim shift lever is extremely stiff or hard to shift. When I pull off the casing that it passes thru or even loosen the bolts to the case it shifts normally. What can the issue ...
Mike's user avatar
  • 91
9 votes
1 answer
1k views

Pontiac G5 transmission sometimes grinds when shifting into first while stopped, occasionally stalls car

I have a 2007 Pontiac G5 with a 5-speed manual (Getrag F23 if you're curious) and about 145k miles. This problem has been ongoing for a couple years now but is progressively getting worse. Sometimes ...
thesammon's user avatar
8 votes
4 answers
10k views

How to keep a car with manual transmission from rolling downhill when parking on a sloped surface? [closed]

(updated the change the term "sliding" to the, in this case, more correct "rolling") About parking a car with a manual transmission on a sloped surface: Is it normal that the car starts rolling ...
user100487's user avatar
8 votes
2 answers
4k views

Do Manual transmission cars perform better than Automatic transmission?

I'm stuck between choosing a car available in both automatic transmission (CVT) and Manual transmission (6 speed). I wanted to know which one will perform better in the following aspects (considering ...
Andrew Ravus's user avatar
8 votes
1 answer
3k views

Is it bad to shift into reverse while still moving forwards?

I often put my manual car into reverse while still moving forwards. I do it at less than 10mph. However, sometimes the gears crunch. Am I doing any damage by doing this? Why do the gears crunch? I ...
George's user avatar
  • 6,545
8 votes
2 answers
1k views

Can you still "motor" a manual transmission car with the starter motor?

When I learned to drive a manual transmission, I learned by accident that if I started it in gear without engaging the clutch, it would lurch forward, and might even start and drive on. (Usually I was ...
user avatar
8 votes
3 answers
1k views

Why can't the 3rd generation Mazda rx7 safely coast downhill in neutral?

The manual for the 3rd generation Mazda rx7 says not to roll downhill without the engine engaged, because the exhaust can overheat. Unfortunately, the manual does not explain the mechanism by which ...
user502's user avatar
  • 225
8 votes
2 answers
45k views

Something Blocking Stick Going Into First Gear

I seem to be having a bit of trouble with the first gear of a 2004 Opel Corsa. I have pulled off the gear stick cover and cant see anything stuck so it must be something that is more internal. When i ...
Dan Hastings's user avatar
7 votes
5 answers
8k views

What happens when I shift gears without pressing the clutch in a manual transmission while the car is running?

Is it OK to change gear without pressing down the clutch when the car is running ? Does it damage or wear anything? Just wanted to know what actually happen to the car.
Helix Nebula's user avatar
7 votes
4 answers
1k views

Are there cars that can shift to reverse even while moving?

I am aware that a car has to be at full stop in order to shift to reverse. Then I saw a video which was able to do a reverse without even stopping. Insane parking https://www.youtube.com/watch?v=...
Jomar Sevillejo's user avatar

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