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

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2
votes
4answers
1k views

1997 Olds 88, trans issue?

A friend of mine pointed me this way due to my current problems; I've been working on this for three weeks and am no closer to diagnosing the issue, so hopefully someone here can point me in the right ...
1
vote
2answers
31 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 ...
5
votes
3answers
1k views

1 Piece versus 2 Piece Drive Shaft

A guy on a Nissan forum asked why he should keep his 2 piece drive shaft in his truck instead of changing over to a 1 piece version. This was the answer I gave him: The 2 piece drive shaft (DS) ...
1
vote
0answers
17 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
1answer
45 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, ...
4
votes
2answers
239 views

Subaru Outback Towing vs Coasting

We just recently got a Subaru Outback. It is a manual and has AWD. The dealer told us if we need it towed, it has to go on a trailer, and can't be towed with wheels down. I understand that this can ...
15
votes
1answer
5k views

Why does the reverse gear in manual transmission cars sound different

When I got a manual transmission car (2003 Kia Rio) I noticed that it makes a winding sound in the reverse gear. Here is an example video that I found that demonstrates the sound. ...
4
votes
1answer
57 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
42 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 ...
3
votes
0answers
120 views

John Deere SX-85 will not go into reverse, or move backwards

I have John Deere SX-85 riding lawnmower which comes with a Peerless 910 series transaxle. It has mowed the lawn twice since the installation of all new belts over the winter. During the second mow, ...
3
votes
0answers
93 views

What is this part and how do I remove it?

I am trying to replace my motorbike clutch friction plates, but cannot remove the basket around the plates ( I think that's what people mean when the say 'basket' - the cover over the plates that ...
2
votes
3answers
66 views

gentle vs Forced push of motorcycle gear - wear and tear

I am new to riding motorcycle. And I tend to use my legs a little forcibly while changing gears. A friend told me that this would cause the gearbox to wear out soon. He suggested me to do it gently ...
7
votes
3answers
2k 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 ...
2
votes
1answer
107 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 ...
3
votes
2answers
161 views

What determines when an automatic transmission shifts?

I'm working on developing an automatic bicycle (mostly microcontroller based) and I'd presume I'd be shifting in a similar way to a car. So my question is, what factors does the transmission take into ...
4
votes
2answers
7k 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 ...
1
vote
0answers
40 views

Transmission sticky for first 10 mins of driving

I have a 2003 VW golf with the 2.0L petrol engine and a manual transmission. I recently had the transmission fluid changed as part of a regular maintenance. Ever since shifting into 2nd gear has ...
1
vote
2answers
61 views

I have an issue with Stepping on gas and no increase in speed

It only happens rarely.. but sometimes when stepping down the gas it would suddenly max out the speed gauge, and you hear the very loud engine noise as if i stepped down the gas all the way, but what ...
6
votes
2answers
198 views

Why doesn't anyone ever repair an automatic transmission?

I am old enough to have had about four transmission failures spaced over about 40 years and at no time did any mechanic ever offer to “fix” it; the only diagnosis has been a complete rebuild. This is ...
3
votes
3answers
206 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 ...
2
votes
2answers
221 views

What is that knocking sound my engine makes when the revs drop too low?

I have a 2013 Subaru Impreza with a 2.0 liter engine and a manual transmission, and when I let out the clutch too fast while in reverse or 1st, sometimes the engine RPM will drop so low that it makes ...
2
votes
0answers
18 views

02 Town&Country not shifting out of first

This has happened three times now, and it's definitely becoming worrisome. While driving on the highway, the check engine light comes on. Nothing seems to be wrong initially, until I exit the highway. ...
34
votes
13answers
44k 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 ...
3
votes
2answers
189 views

Car I test drove had a high clutch engagement point; why?

I test drove a 2002 BMW 325xi with 80,000 miles on it the other day and while it didn't have any major issues cosmetically or mechanically from what I could see, there was something strange about the ...
3
votes
2answers
233 views

How can I reset the adaptive transmission on my Pontiac G6?

My Pontiac has started shifting hard and sometimes taking a loooong time to find the gear. My first suspicion is that it has MDS (Multiple Driver Syndrome), so I'd like to try the cheapest option of ...
2
votes
6answers
7k views

Use of Neutral Gear in Automatic Transmission

I am new to driving A/T cars and I am trying to understand the use of Neutral(N) gear. Should I shift my gear from D to N when my car comes to a complete halt on a red light or somewhere else? As per ...
3
votes
3answers
6k 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 ...
3
votes
0answers
187 views

Could a fuse be responsible for my VW Jetta not shifting while in drive?

Issue with my VW Jetta (2001) Automatic transmission, gasoline engine My tail lights were out because of a missing fuse. So in the dark I looked to find a good one to replace it with (of the ones ...
2
votes
4answers
212 views

How will I know clutch pads need replacing?

I have a manual shift honda civic. How would I or the motor mechanic know that the clutch pads need replacing? Would they check it during oil change? Certainly you don't open the transmission box to ...
3
votes
1answer
82 views

Better to repair a CVT or replace with a used one?

Our 2003 Honda Civic Hybrid transmission died. Honda gave us an estimate of $4500 to replace the transmission. We took it to a different mechanic who suggested that instead of replacing the whole ...
4
votes
4answers
4k views

Slow Accleration And Moving RPMs

UPDATE: I bought a scan tool and downloaded the torque app. I don't get any error codes. I decided to drive it again today. I drove about a quarter mile and barely got to 20MPH. I turned around and ...
4
votes
2answers
121 views

Can I use a CNC machine or waterjet to make an adapter plate to adapt a 5 speed transmission to a rare, obsolete engine?

I am the sad, proud owner of a Nissan SD33T (Diesel), mated to a 4 speed T-19. The power this engine outputs (101HP, 160#/TQ stock) means it struggles on the highway, and I don't want to sacrifice my ...
4
votes
2answers
504 views

Do I need computer reprogramming when transmission is replaced?

Honda Odyssey 2003: I'm replacing a transmission, and a local mechanic will help me to swap it in my garage. I've been told at a local shop, that in order to install remanufactured transmission ...
3
votes
3answers
755 views

Gear Linkage repairs for VW Polo Mk3 (1997)

I had a problem changing gears on my Polo (1997, 1.4 petrol, 3 door, UK). It was hard to find the gears especially 1st and 2nd, and reverse would grind, and it was worse when the car was warmed up ...
4
votes
3answers
688 views

Random RPM jump when accelerating hard

I should state first off that I'm not much of a car guy when it comes to the actual mechanics behind them. I just wanted to check if there's anything going wrong with my transmission. I drive a 03 ...
1
vote
1answer
52 views

2001 Acura CL hard downshifts

Not sure of a better title, but Ill try to explain what I am experiencing as best I can. I've driven a few different automatic transmission cars with a manual mode. Normally when down shifting (to ...
7
votes
4answers
491 views

What problems may occur if clutch is not used?

I was curious about what problems may arise if clutch is not used when shifting gears. Are the problems similar for both cars and bikes?
4
votes
2answers
77 views

vanagon lurches forward, won't accelerate past 20mph or so

I have a manual 1982 diesel VW Vanagon with a 1996 Passat TDI engine in it. This morning (low 40s temp), accelerating up a hill, heard a hissing sound in left rear. Check tires, no problems. Able ...
2
votes
2answers
157 views

Grinding noise on transmision on a Ford Focus 1.4 i Zetec - 2002

Can anyone help me to find out where this grinding metallic noise comes from? Transmision fault? Bearing gone? or what? Here is how it sounds - http://youtu.be/YGAeINSTtrQ . The first part is when ...
12
votes
4answers
9k views

Driving in second gear at 65+ mph

I accidentally drove my 2000 Grand Marquis on second gear on the highway. I was going 65 for like 5 minutes and tried to get it to 70mph but the car was shaking, when I realized I put it into regular ...
-1
votes
1answer
82 views

Can all transmissions be shifted to neutral at any speed? [closed]

I say there is no such thing as uncontrolled acceleration. The reason for my comment is that I believe it is possible to shift any transmission to neutral at any speed and then you can bring the ...
5
votes
1answer
522 views

Automatic Transmission or Differential Backlash (Play)

I noticed that my car has what it seems to be significant differential play. I have a 1993 Acura Integra with automatic transmission. What I mean by play is simple: say I jack up only one front wheel ...
3
votes
2answers
4k views

Car shakes when in gear at red light

I bought a '96 Toyota Camry about a month ago. When I first turn the car on and the engine is cold, I can have the car stopped (in gear) and it will not shake. The idle RPMs will be at 1000. After ...
1
vote
2answers
45 views

How to undo transmission nuts

I have an ~1986 Yamaha Ag 200 and I've been pulling it apart as a bit of a hobby to understand a bit more about how it works and hopefully in the end get it going. I've opened it up so some gears ...
2
votes
1answer
76 views

CVT on 6 cylinder cars

The 2013 Honda Accord has both 4 cylinder and 6 cylinder cars, however, only the 4 cylinder cars have a continuously variable transmission (CVT). I was wondering... is there any particular reason for ...
7
votes
3answers
4k views

chevy impala jerks after stopping

I have a 2003 chevy impala. When I hit the gas (whether it be a light tap or hit it pretty hard), my car kind of waits a second, jerks and then takes off (revs go kinda high when it's waiting). To ...
3
votes
1answer
80 views

AWD truck doesn't shift smoothly. I was advised to not change the transmission fluid

AWD Mercury Mountaineer. 1997 Automatic transmission. 8 cylinder 5.0L 150k miles. fairly good shape. Pretty awesome truck. From 1st to 2nd gear, the transmission shifts with a light clunk. Also, at ...
3
votes
5answers
1k views

Should you change all of your transmission fluid?

I took my Lexus RX 300 to the shop, to change the transmission fluid. While talking to the tech, he said he sucked out half the fluid and left the other old half there. Is this proper? Shouldn't they ...
2
votes
0answers
66 views

Gearbox Swap '93 model mitsubishi triton MJ

I bought two cars, one as a road vehicle and another as spares. They're both Mitsubishi Triton MJ. My road vehicle is a '93 model and the spare is a '94 model. My question is whether it's possible to ...
3
votes
2answers
1k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...