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

learn more… | top users | synonyms

0
votes
0answers
21 views

What is the redline for different gears for Peugeot 107 2005 model?

I have a Peugeot 107 which is a 1 liter engine car. I was wondering what is the maximum safe speed at different gears? The car starts to make a lot of noise in 1st and 2nd gear, even at 10 mph at ...
1
vote
0answers
14 views

2006 Saturn Ion wont shift into drive but will in reverse

Couple of days ago my 2006 Saturn Ion transmission stopped working, I can put the car into drive but when I hit the gas it just revs up and doesn't actually go anywhere, it will roll though like its ...
4
votes
2answers
245 views

What is the difference between an automatic and an AMT

I have seen many recent car launches in my home country which claim to have something called as an AMT or Automated Manual Transmission. I am curious to know how is this different from a traditional ...
6
votes
2answers
71 views

Any truth to the “myth” about changing transmission fluid in older vehicles?

I have had people give me anecdotal stories (friend of a friend type thing) about changing the transmission fluid in vehicles with 150,000+ miles, especially those that haven't had regular ...
5
votes
1answer
37 views

2002 Peugeot 206 Clutch won't disengage

When the car is running, I am no longer able to put it into any gear; like it would happen when you're not holding the clutch, so that is one of the reasons why I think there is something wrong with ...
1
vote
2answers
25 views

Pontiac g6 runs lean; throwing codes

My 2006 g6 v6 3.5 is showing codes p0171, p0174, p0705 and u0073 171 and 174 show that the engine is running lean. Is this a serious issue? 0705 shows the trans range sensor a circuit 0073 says the ...
1
vote
1answer
37 views

Heavy Towing 2007 Chevy Avalanche 5.3L [closed]

I'm going to be doing a bit of heavy towing with my truck. Up to and sometimes over its rated weights (approx 7000lbs). What can I do to add the necessary power and transmission performance that I'm ...
2
votes
1answer
24 views

Clutch issue in 1995 Mazda Miata

My clutch pedal had absolutely no pressure unless I would pump it, but that wouldn't do much. It finally gave out so I changed the master cylinder next to the break cylinder with one that I know works ...
1
vote
1answer
12 views

Gear slips MM540 while applying clutch/stop accelerating

While I drive in 3rd gear its fine, but if I try to apply brakes/stop acceleration suddenly, 3rd gear slips into neutral position (Not exactly neutral) and while I try to put third gear again, it ...
5
votes
1answer
44 views

Converting floor jack to tranny jack?

Is it possible to adapt/convert a regular floor jack to a tranny jack for the purposes of lowering the transmission assembly?
3
votes
1answer
32 views

Replacing 3rd gear synchro on a Tacoma

I have a 4WD 2007 Tacoma V6 manual with 6 speeds. This model has a notorious reoccurring problem with its 3rd gear, which is due to the synchro going bad on that gear, as per many online ...
3
votes
1answer
23 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 ...
3
votes
1answer
35 views

Transmission not shifting from park

I own a Nissan Maxima 2000. Over the past 2 or 3 days I am observing a strange problem with my transmission. Once I start the vehicle, I place my foot on the brake and try to engage drive, the shift ...
3
votes
1answer
111 views

Clutchless Downshifts Using Throttle Blip on a Motorbike/Sequential Gearbox

This is with respect to non synchromesh, sequential transmission. Ducati along with several after market systems, implement clutchless downshifts by automatically applying a slight throttle to unload ...
2
votes
1answer
38 views

Rough idle in neutral

I have a 6-speed 2012 135i, and whenever I idle in neutral, the car vibrates and makes a noise that I can only describe as sort of a faint grinding sound (it doesn't actually sound as bad as that ...
2
votes
3answers
152 views

Should I put my (UK) Automatic into Neutral at stops?

I have a Vauxhall diesel automatic with electronic handbrake. Which of the following is the best procedure at a red light? Leave in drive, foot on brake Leave in drive, engage handbrake Place in ...
4
votes
2answers
225 views

Name of inverter gear cog in English

One time, I had in my hand an object, part of a tractor gearbox, and i know its Portuguese name:"carreto inversor". The device has two cogs, one is the input and the other is the output. The function ...
4
votes
0answers
46 views

Mystery Sensor on Manual Transaxel Housing

I have a 97 Mazda - 323 S V (BA) - 1.8 i 16V (114 Hp) with a manual 5 speed transmission. While trying to change the oil, I noticed the following connector, with one missing wire on what I think is ...
5
votes
2answers
35 views

01 gti not going into reverse 1st 3rd or 5th after I changed the clutch

So I changed my clutch a few days ago and now it will not engage reverse 1st 3rd or 5th gear but will engage 2nd and 4th no problem with the car on and off. I readjusted the cables but still nothing ...
3
votes
1answer
34 views

Surely I'm refilling my transmission fluid incorrectly

My car ('96 Ford Taurus) developed a transmission fluid leak and lost an unknown amount of fluid. I fixed the leak and began replacing transmission fluid but this has proved to be extremely tedious. ...
2
votes
1answer
218 views

my car acts like its going to stall at a stop

my car drives fine but when i come to a stop light or any stop it acts like it will stall but never does. did some easy things like oil change. no check engine light is on but it seems to keep ...
4
votes
2answers
347 views

1st gear hard to engage unless stopped, Subaru 2004 Impreza Outback Sport

Since I've bought my 2004 Impreza Outback Sport, I've had a problem with shifting into 1st gear. First gear is generally difficult to engage while moving. You can just force it, but it's really ...
4
votes
2answers
640 views

Rental car gearbox broke down

Last week end, I rented a car, fairly new car (probably 1 year old). On the way to give it back, 20 minutes before arriving, the gearbox just broke. I couldn't accelerate etc. During the week end, I ...
2
votes
1answer
184 views

How bad is it for transmission if you release clutch without gas in second gear?

For instance, if you stop at the red light and you release clutch while still in gear in manual transmission, the car would wobble and die. Of course you can start it up again, but what is the actual ...
2
votes
1answer
248 views

Transmission Fluid Pump - 2008 Crown Victoria Police Interceptor P71 CVPI

Hi, I have a 2008 Ford Crown Victoria Police Interceptor. My car runs in forward and reverse for a short time (30 seconds to 2 minutes) and produces a loud whine noise. I believe this to be the ...
2
votes
1answer
181 views

2001 civic won't accelerate when pressing gas petal..?

For the past few days my check engine light has been on. Whenever I try to accelerate, the car will not go very fast at all, no matter how hard I press it, all the way down, halfway, doesn't matter. ...
2
votes
0answers
93 views

Possible transmission fluid leak

2001 Toyota 4Runner SR5 265K miles. I haven't driven it in 2 days and came out and found a small pool (about 2 teaspoons at the most) underneath the engine area. It's clear with a tinge of red, no ...
2
votes
1answer
77 views

How to add transmission fluid with no dipstick?

I have a 2003 chevy cavalier, and just replaced the radiator due to a transmission fluid leak into the antifreeze. I don't know how much fluid was lost because the transmission was designed without a ...
1
vote
1answer
353 views

During accelerating rpm going up but not speed [duplicate]

I have a Hyundai Accent 2002 car. Recently, each time I hit the race paddle to accelerate, my RPM goes up, but not the actual speed of the car. Could anyone think of what's the problem?
2
votes
1answer
56 views

Can you start an automatic car whilst in drive?

Is it possible to start an automatic car whilst in drive? If it does start in drive, is this considered dangerous?
5
votes
3answers
1k 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 ...
2
votes
2answers
112 views

2010 VW Stuck in Park

I have a 2010 VW Jetta Stuck in Park. When I turn it on, press the brake, and press the shifter button it doesn't move. How do I get it out of park? The brake light and dash indicator do toggle ...
6
votes
1answer
161 views

Sometimes my second gear is rough to engage. What could be wrong?

So I've got an odd problem for a 2004 Toyota Echo. The second gear, sometimes not always, is hard to engage. If I be real gentle, and just put a bit of pressure, it would slip in. I could also be a ...
0
votes
1answer
158 views

Material and construction properties of drive shafts, wheel shafts, gearbox

I am looking for some typical properties of a 1.4L rear-drive car's drive shaft, drive-wheel shafts and the gearbox. I need to calculate the moment of inertia of the components of the drive-train. So ...
3
votes
2answers
230 views

Difference between “dumping the clutch” and N->D in an auto?

What's the difference between dumping the clutch, and going from N->D at high RPMs with an automatic transmission? Will this cause any damage to the vehicle?
-1
votes
2answers
86 views

Engine Transmission

I've been having a problem recently, as I push the gas pedal my car moves super slow. It won't go faster then 10 to 15 mphs. As I drive it feels like the gears are not catching
0
votes
0answers
166 views

97 Ford F-150 4.2 - Transmission not shifting properly

Shifting between 2nd and 3rd engine revs like it's in neutral. I have to put it in neutral then back in gear and it'll shift fine into gear. Also when it shifts into overdrive after two seconds of ...
3
votes
1answer
53 views

91 GMC accelerating problems

I have a 91 GMC 3500 dually 7.4. I recently had my transmission rebuilt and it ran fine for 6 to 7 months. I give it gas and it will go up to 40-45 mph and will stop accelerating like it goes in ...
1
vote
2answers
147 views

What could cause lazy shifting in an automatic transmission?

I'm trying to help out a friend who owns an '03 Chevy Caprice (Holden Statesman in Australia; LS1 V8). His transmission is misbehaving; it doesn't want to upshift unless the engine reaches a high ...
2
votes
1answer
2k views

What is a claw shifted transmission?

How is it different from an ordinary transmission? Is that a comparatively newer technology? If possible also add a few examples of motorcycles and cars which use claw shifting mechanisms. PS: ...
0
votes
1answer
70 views

98' camaro customization for highway MPG

I currently have a 98 camaro T-top 3800 V6 ,5speed live in Texas where people do 80-90mph normal. Also make 13-16 hour drives on a regular basis. Problem is @85/90mph in 5th gear it's going at ...
2
votes
1answer
865 views

Bike is sometimes not wanting to shift into neutral

I have a 1982 Suzuki SP250. The bike "doesn't want" to shift into neutral sometimes. I have to rock it back and forth and shift up and down the gears a for a while before it shifts. I have changed the ...
1
vote
4answers
2k views

Hydrostatic transmission oil confusion

I have a John Deere LX176 lawn tractor and am confused about its hydrostatic transmission oil. The manual states that the hydrostatic transmission oil should be "SAE 10w30 engine oil with API ...
0
votes
1answer
287 views

99 Mitsubishi Montero Sport idle problem

Upon starting, engine idles at about 1200 in park. When it warms up, idle drops to nothing, unless air conditioner is at max where rpm is roughly 400 to 500. Where should I start looking?
1
vote
0answers
48 views

Buick LeSabre 2002 automatic transmission not working

My Buick went crazy 2 days ago, the car won't move if you transit to overdrive from neutral, though the RPM is moving. If I start from 1st transition or 2nd the car works properly. After 3rd I can go ...
1
vote
2answers
62 views

Convert Manual to Computerized “Automatic”

I'm wondering if this is possible. With a conventional manual transmission (say, Tremec T56), could I install a small computer to press the clutch, change the gears, etc? Obviously, I would have to ...
1
vote
3answers
192 views

Rhythmic sound coming from rear end

There's a rhythmic sound emanating from my rear end, and I'm not sure what exactly it is. It varies with speed and is consistently present, regardless of clutch in/out, acceleration/deceleration, ...
0
votes
0answers
71 views

Location of fill tube for Nissan Pintara auto transmission fluid

Where on a 2.4lt 1989 Nissan Pintara do you put the transmission fluid? I cannot seem to find where it would go and my vehicle is not changing gears properly.
5
votes
1answer
310 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, ...
0
votes
1answer
67 views

Operating stick shift [closed]

I drive a car with an automatic transmission, so I always wondered about how stick shift works. For example, say you are driving at 50 mph at 4th gear. When you want to slow down to a stop, do you ...