These are questions regarding either manual or automatic gearboxes and their component parts.

learn more… | top users | synonyms

41
votes
16answers
66k 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 ...
4
votes
2answers
4k views

Engine braking with an automatic transmission

For reference, I've reviewed these three questions: Manually shifting an automatic transmission? Does Downshifting (Engine Braking) Cause Extra Wear and Tear? Is engine braking harmful? I drive a ...
3
votes
3answers
11k views

Automatic transmission: Is shifting to neutral while approaching stops bad?

This is not with the intention of saving fuel (as I have seen many answers assuming savings in fuel while doing this). But I have this habit of putting the vehicle into neutral before approaching ...
5
votes
1answer
253 views

Manual Transmission Whirs when coasting down, clutch disengaged, shifter in gear

I have a 2004 Nissan Xterra. When I am at speed, usually in 3rd or so, and I am coming to a stop, I disengage the clutch, brake, and coast to a stop, with the shifter still in gear. As I do this, ...
4
votes
3answers
1k views

Is Redline Lightweight Shockproof appropriate for an aging 2004 Subaru Impreza manual gearbox?

I have an aging (but wonderful) 2004 Subaru Impreza WRX with a manual gearbox. For some time, I have noticed that the synchros have begun to feel worn with the stock dealer-issue oil. Shifts are ...
3
votes
3answers
464 views

Engine spikes to 5000 rpm when pressing on gas pedal or going uphill

I'm having an issue with my 2001 Solara, and I would like to check out a few things myself before I have a mechanic spend lots of time diagnosing the problem. When the engine is under load -- I press ...
3
votes
2answers
3k 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 ...
13
votes
4answers
3k views

Is downshifting on hills harmful for non-trucks? [duplicate]

Possible Duplicate: Does Downshifting (Engine Braking) Cause Extra Wear and Tear? Since the days of taking drivers ed (many years back). I was told that when you encounter a steep or ...
2
votes
2answers
4k views

turning right causing small vibration and noise

My 2004 Ford Focus makes small grinding and vibrating noises when turning to the right. The problem was much more severe earlier this month. I took it to the shop and had them get me new tires and an ...
3
votes
1answer
2k views

How does a AMT (Automated Manual Transmission) work?

I know that a TCU automates the operation of the clutch. But I'm clueless on how an AMT can do anything a human does using a manual. 1)If you are stopped at a hill. When pulling off, a driver brings ...