Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [gears]

165 questions
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11 answers

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

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 first or second gear are fine as well. Is there a…
William
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Is shifting to neutral on a decline more fuel efficient than keeping the gear engaged?

I always had the habit of shifting to neutral on long declines and using the brakes to slow down as needed. Intuition made me believe I'd be saving fuel as opposed to keeping a gear engaged. However, I noticed that the on-board fuel consumption…
Smig
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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 vehicle?
CaptainCalvert
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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 to say, in city riding I have to short-shift out of…
dave
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What differences are there between straight cut and helical cut gears?

in formula one, and most other motorsports they use straight cut gears as shown below. in most normal cars you will see helical cut gears as shown below. if both teeth are the same thickness the straight cut gear will break first under enough…
Cc Dd
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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 reverse when stopped and then pull the car…
Pablo Matias Gomez
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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 possible way to get the car into neutral from…
user26925
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What stops a car window from falling down?

I have been trying to research how the gears of the crank mechanism of a car window works, either manual or electric. I want to know why it doesn't fall down from gravity. Can anyone link me to an animation or images that explain why it remains…
paul
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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 when I shift into first while stopped, like at a…
thesammon
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What does it mean to have a stiff first gear?

This problem is a small one and it can only occur with manual cars, but I have been curious to find out more about it for a while now. Sometimes, when the car is attempting to pull away from a standstill (at traffic lights, for example) the driver…
Max Goodridge
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Switch from N to D without brake

Will it cause any damage to the engine/transmission if one switches from N to D without pressing the brake pedal? I was driving at about 40 mph when I accidentally switched to N. Then after a while I switched again to D, but I didn't press the brake…
Eugene Garbuzov
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Why am I not moving after starting car and shifting to Drive?

So I have had this issue for the last couple months where when I first start the car, shifting to Drive (automatic transmission) doesn't do anything. Pressing the gas only revs the engine, as if in neutral. Shifting down to low gears (1 and 2) has…
Nathaniel Davidson
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Why do we push start cars in second gear?

I always wondered why you have to be in second gear when push starting a car. I know what all the process does, so my thought is that it would be better to do it in first gear. I think this because in first gear you can have more rpm with less speed…
Pablo Matias Gomez
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Riding motor cycle in a slow moving traffic

While riding in a slow moving traffic should I keep on switching to neutral when I stop the bike or should I keep the bike in 1st or 2nd gear holding the clutch? Does changing gears frequently cause more wear and tear to the engine or holding in…
Ankit Rai
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