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

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4
votes
3answers
10 views

Engine Braking Force

I've got a few questions regarding the force of a typical engine brake: 1.Which parts of my car influence its numerical value? 2.Is there a formula, which enables me to predict the numerical value, ...
3
votes
3answers
40 views

Car Would Not Start

My car just died. It was parked and when I went to start it nothing happened. No clicking sound, no nothing. The electric wndows still worked. I did not check lights. Had to have it towed to repair ...
3
votes
1answer
17 views

Testing and diagnosis for hissing sound only in forward gears 2000 Toyota Camry-LE

I have a 2000 Toyota Camry LE, with 147,000 miles on it. At present, when sitting at idle with the transmission in park, neutral, or reverse, there is no noise, everything sounds normal. When the ...
3
votes
1answer
19 views

Electrical reverse lights stay on

We recently purchased a restored 1971 chevelle ss. They did an excellent job. I just noticed that the reverse lights are always on and assume it something with the switch. Where might I look for the ...
2
votes
1answer
23 views

Bike making squeaking sound while upshifting

I've put 7281 Kms on the bike so far and recently I've encountered a problem. While upshifting using the clutch, the bike makes a squeaking sound. The sound appears when I release the clutch. This ...
4
votes
2answers
30 views

transmission blown?

while i was driving my car going about 20 miles an hour i tried to stop and all my brakes were gone even my e brake...i panicked shut my key and put my car in park..well it stopped but it made a boom ...
5
votes
3answers
60 views

Will towing a trailer hurt my 2008 Subaru Forester?

I'm getting some mixed advice about towing with a Forester. We are considering buying a small popup camper, and also maybe a small utility trailer. The camper would be for there-and-back trips, not ...
6
votes
1answer
322 views

Need to find out what part is called

Hello I have a desperate question! I own a 2006 dodge sprinter and cannot figure out what the part connected to the transmission with the wheel is! i want to buy a new one and have spent countless ...
2
votes
1answer
25 views

Mercury Comet Gear Shifter Is Loose

I have a 1964 Mercury Comet Caliente that I am restoring and I'm trying to make it drive as smoothly as possible. However, the car's gear shifter lever on the steering column (automatic transmission) ...
5
votes
3answers
78 views

Motorcycle randomly loses power

I have a single cylinder, 200cc, carbureted, 5 speed, 12V, 2006 Lifan LF 200 motorcycle that typically runs fine. It will sometimes randomly lose power and I cannot get it to go above 25 mph. When ...
8
votes
3answers
879 views

How Does a Quick Shifter work in a motorcycle

I have often seen motorcycles like the BMW S100RR and the famous Ducati Panigale with Quick Shifter technology which allows seamless gear changes. I want to know how these things work mechanically ...
2
votes
0answers
15 views

1999 Toyota Camry Transmission issue

I have a 1999 Toyota Camry. Bought it from dealership a year and 3 months ago. I went from 150,000 to 170,000 miles on the Odometer. Overtime the car started to shift rough (automatic vehicle). I ...
4
votes
1answer
37 views

VW Jetta 2003 GLI 6 Speed manual stuck in gear.

My 2003 VW Jetta GLI VR6 6 speed manual is "stuck" in gear. ATM stuck in 2nd gear as i was about to back into my driveway and as i went to shift into reverse it wouldn't shift and basically is stuck ...
3
votes
1answer
56 views

subaru impreza 1998 clutch noise

I have subaru impreza 1998 with manual transmission. When I push the clutch I hear a noise like the noise of the power steering belt when its over tightened. The mechanic replaced the clutch bearing ...
3
votes
1answer
86 views

Car goes in reverse when put in drive

Car:2007 Chrysler 300 2.7 I went to start my car this morning, put it in drive, but it wouldn't go. Then I put it in reverse and it would drive back as well as neutral. So then I turned the car ...
6
votes
1answer
92 views

Effects of shutting off Nissan altima (or any car) while in drive

Every now and then when I get home after a long day, I pull into my driveway and while the car is stopped (foot on the brake), I turn the vehicle off without putting the vehicle in "Park". Car is ...
1
vote
0answers
23 views

2004 Ranger won't shift into second

I have a 2004 Ford Ranger. It suddenly stopped going into seconds gear. All the other gears work fine. Do you know why?
5
votes
2answers
67 views

Why does my manual gear sometimes slip into neutral?

I have a Mazda 323 Astina (called something else outside of Australia), 1997 model. When the weather is cold the car sometimes slips out of 5th gear into neutral. It only ever does it once a day, ...
2
votes
0answers
36 views

2007 Nissan Quest RPM issues

I have a 2007 Nissan Quest 3.5S. I notice that exactly at 20mph the rpm will be at a specific rpm then fluctuate to a higher rpm then come back down to normal rpm. Is this normal?
6
votes
1answer
64 views

How to calculate the angular velocity ratio of a cardan shaft?

Recently this question has been bugging me, and while it might seem simple, I was not able to find a satisfactory answer. Suppose we have a cardan coupling like in the following picture, where the ...
3
votes
0answers
38 views

Don't know if its my transmission, or gears

I have a 2009 Chevrolet Impala LT. When I drive in D it won't go past a certain speed but when I drive in 3 it sounds faster than what it's going. It will be at 60mph and the reader will say at 6 when ...
1
vote
0answers
29 views

Unable to shift into low range when cold on my 100 series Toyota Landcruiser

It is impossible to shift into lo range when the vehicle is cold. I have changed the oil with no improvement. When the drive is warm there is not a problem.
2
votes
3answers
115 views

Which motorcycle engine and transmission configuration would have a higher top speed? [closed]

Can a higher cc (displacement) bike with 5 speed transmission or a lower cc (displacement) bike with 6 speed transmission have higher top speed? Example: Yamaha R15 (150cc, 6-speed transmission) v/s ...
1
vote
0answers
73 views

OBD-II Enhanced PIDs

I was looking at the Torque Pro app and in the section where there is a list of custom PIDs that can be used, one is a Transmission Temperature PID. But it is exactly same as Engine Coolant ...
4
votes
1answer
69 views

Can wheels turn if the engine died when in gear (automatic transmission)

Lets say an automatic transmission vehicle is going downhill and stopped in traffic. And suddenly engine died. Is it possible for the wheels to turn (turning the transmission, torque converter) and ...
1
vote
2answers
26 views

Transmission Dip stick reading at Hot level [closed]

I just bought a 2000 GMC Jimmy with 170,012 miles on it. Is it normal that it is reading hot on the dip stick of the tranny fluid? yes this is after its been running for awhile.Also the previous owner ...
7
votes
2answers
129 views

CVT transmission slipping

I have a Toyota vitz 2007 and I am facing a problem for about 2 weeks now. Sometimes when I press the accelerator, the engine revs up but I hardly see any acceleration. The problem is severe when I ...
3
votes
1answer
34 views

Gear Shifting from Neutral to Drive

Kindly, I am facing a problem in my gear, when I am shifting the Gear from Neutral to Drive. When I am shifting from N to D ( meaning the Status now " Drive ") the car Screen show that the Gear is ...
4
votes
2answers
99 views

Shifting on a motorbike by preloading

I have a few different questions that popped into my head after reading about preloading the shifter in motorbikes, here's one of three: Shifting between 1st and 2nd on a motorbike - will the bike ...
3
votes
1answer
36 views

Engine revs without much acceleration

In my Toyota Vitz 2007 (automatic transmission), I have facing a problem for about a week now. The problem is, sometimes when I press the accelerator, engine revs up but car does not accelerate much. ...
12
votes
4answers
193 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 ...
0
votes
0answers
23 views

Jeep Cherokee A/C Trans?

The A/C wouldn't blow cold even after freon put in. The condenser and fan replaced but it keeps blowing fuses and still no A/C. Now when I check there are bubbles in transmission fluid now. What is ...
3
votes
0answers
55 views

2010 mini cooper transmission noise and gear shift at RPM higher than normal

I'm hearing rattling noise when the transmission is engaged (drive) and it get's louder at higher rpm. previously I did not hear this. There is no noise when I rev engine in park mode. The gear in ...
5
votes
2answers
81 views

Is this the ATF drain plug on 06 Ford Fusion (please confirm)?

2006 Ford Fusion SE Auto. I have it jacked up now ready to do a drain and fill of the ATF fluid but I'm not 100% sure about the drain plug. If you know this car please confirm, is this it in the pic? ...
7
votes
2answers
200 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 ...
3
votes
1answer
15 views

2002 Sonata that accelerates on its own and with braking seems like shift lockup. Also at a complete stop the car is still reving

I'm not sure if the crankshaft sensor failing, No CEL. My car did this last night. Ishut it off gave it dry gas topped off tranny fluid about 2ounces. Ran it and it was smooth, shifted normally no ...
7
votes
1answer
136 views

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 ...
6
votes
0answers
41 views

How to measure transmission fluid levels?

I understand the newer Audi A3's with either type of transmission (auto or DSG) has a really weird way to check (to normal pull the dipstick type checking) the transmission fluid. Can someone please ...
9
votes
0answers
61 views

Torque convertor shudder?

I drive a 2011 GMC Sierra 2500HD ex-cab 2wheel drive with a 6.0 gas engine and a six speed 6L90 automatic transmission. I have started noticing what I believe is called "shudder" from my tranny under ...
6
votes
1answer
26 views

Is my 1999 blazer having transmission problems?

I have 99 Chevy blazer. It never wants to get moving right away. it takes 30 seconds to a minute before i can get fully going. It also shakes when I at a red light or stopped. i noticed today that ...
11
votes
4answers
1k views

Do cars go from Drive to Neutral on their own?

While stopped at a railroad crossing in my A/T Honda CRV with my car in Drive and my foot on the brake; does my car eventually go into Neutral on its own if I'm there for while?
7
votes
1answer
118 views

Should I change transmission fluid if it's black?

I bought a vehicle couple of weeks ago. I checked the transmission fluid today, and noticed it was black. Should I be worried and immediately go change it? Part of me wants to get it changed since I ...
4
votes
4answers
104 views

Will my 2002 Mustang make it from California to Iowa?

I have a great 2002 Mustang automatic 6cyl in great condition, but I am a worrier and want some outside opinions. I am the second owner of the vehicle. Have owned it for 1year, 7 months and I get my ...
3
votes
2answers
99 views

Why after a certain RPM with the same gear selected the car no longer accelerates?

I have basic understanding of gearboxes and why we use them, but what is baffling me is that after about 4000 RPM (at least in my car) it doesn't accelerate further (or it does slowly)... This seems ...
5
votes
1answer
75 views

Manual transmission noise

What causes a grinding or scratching noise when shifting from 2nd to 3rd Gear on a 2000 Celica GT? I did have my mechanic add some gear oil but was thinking maybe I should have him drain out old ...
5
votes
2answers
59 views

Skipping speeds when downshifting

Is it bad to skip speeds when downshifting manually, e.g. from 4th directly down to 2nd etc?
5
votes
0answers
73 views

Mazda 626 1995 automatic won't shift gears

I have a 1995 Mazda 626, 2.0L, automatic transmission. The transmission won't shift. It stays in 3rd gear and won't go into any other gear. The car does drive, but won't change gear out of 3rd. The ...
11
votes
3answers
1k views

How does the transmission not strip itself when applying the brake?

Quick question bugging me: Obviously the car moves forward when neither applying the brake nor the accelerator. How does this not damage the transmission when the brake is pressed? I first ...
3
votes
1answer
43 views

Mazda 3 fn4a -el transmission on tune up

A few days ago I tried doing an " tune up" on my car. It had just a transmission fluid replacement(with synthetic fluid) and had a couple of solenoids replaced. I had an oil change less than a month ...
4
votes
1answer
38 views

2004 Honda Civic ex rpm spike and lose acceleration.

I have a 2004 Honda Civic. Sometimes when pushing on the gas at a slow pace around town the rpm jump up and it's difficult to accelerate. Once doing 60 it doesn't appear to do it. Does the ...