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

learn more… | top users | synonyms

2
votes
1answer
196 views

When looking at a transmission, how can I know if there is a LSD?

How can I know if there is an LSD installed on a transmission from a Dodge Neon 2003? For what indicators should I look for?.
2
votes
1answer
2k views

Altima Clutch and/or Transmission Problems

I have a 2005 Nissan Altima SE with a manual transmission. The clutch was completely replaced about 7k miles ago. I bought the car about 5k miles ago. At around 2-3k miles ago is when the problems ...
2
votes
3answers
2k 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 ...
2
votes
1answer
578 views

2006 Toyota Corolla Jerks while coasting

I have a 2006 Toyota Corolla with roughly 65k miles. Problem I'm experiencing is that every now and then she will give a couple of jerks while coasting along. Most of the time the car is traveling ...
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 ...
2
votes
1answer
199 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 ...
2
votes
0answers
88 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
0answers
19 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. ...
2
votes
0answers
87 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 ...
1
vote
1answer
1k views

Top Speed varies even when using the same bike

I own a Hero Honda CBZXtreme bike. The top speed that I have reached is 122Km/Hr. But I am not able to reach this speed always. Sometimes the speed does not even cross 105 Km/Hr while travelling on ...
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 ...
1
vote
2answers
296 views

How to know when automatic-transmission box needs to be changed?

My friend is very odd: this thread about durability comparison between automatic/manual durability meant to him that manual is always better option because you can learn to change the clutch and only ...
1
vote
1answer
339 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?
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
185 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, ...
1
vote
1answer
94 views

Cost to alter the transmission system

How expensive would it be to replace a manual transmission system to an automatic?
1
vote
2answers
24 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
2k views

VW Golf manual will not move forward in 1st gear but can reverse

When I stop the car, sometimes it will not move forward from 1st gear but if I reverse it will clear the issue. Then I'm able to drive forward in 1st gear again. Reverse seems to reset the car. What ...
1
vote
1answer
3k views

VW Polo 2008 won't go into first gear

Okay, so yesterday I stopped at a traffic light on my way home from uni. When the traffic light turned green again, and I was to pull away I could not get the gear into first no matter how much I ...
1
vote
2answers
850 views

How does a belt drive CVT variator work?

The title basically says it all, but I am the most interested in what the rollers actually do?
1
vote
3answers
2k views

How to reduce engine drag

Reading this question - Is engine braking harmful? - reminds me of a question I have always wanted to ask. I used to own a Prius. When the Prius is cruising at low speed at a slight downward slope, ...
1
vote
2answers
152 views

Can anyone identify the problem?

I just broke down. Here's a description: ('97 Subaru Legacy) Driving completely normally along a town road, the car suddenly began to sputter and jump as I pressed on the gas. Then the check engine ...
1
vote
1answer
34 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 ...
1
vote
2answers
748 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 ...
1
vote
2answers
307 views

Possible to diagnose broken transmission without starting engine?

While I know a little about cars, the bulk of my knowledge came from when I was a kid bolting on stuff to my Honda and racing it illegally. (So, not much.) My '96 Civic DX (5-speed) recently passed ...
1
vote
2answers
992 views

How much efficiency is robbed from 'pumping loss,' if any?

I'm specifically referring to the loss due to the pistons pulling air through a mostly closed throttle while cruising at highway speeds in a gasoline engine. To give an example, I've always wondered ...
1
vote
1answer
688 views

How to generate involute gear milling Gcode

I need to make some gears/pinions myself. I have access to a high quality 4-axis CNC mill, but not to a lathe. I'd like to cut these gears out of flat stock (facing), rather than round (edgewise) ...
1
vote
1answer
698 views

1990 Acura Integra LS manual transmission clutch replacement

I'm trying to replace the clutch in my manual transmission 1990 Acura Integra LS (5 speed, 4-cylinder). In the course of doing this, I need to remove the transmission which is connected to the shift ...
1
vote
1answer
983 views

How do I change the CV Joints on my 2003 Acura TL?

How do I change the CV Joints on my 2003 Acura TL? My 2003 Acura TL 3.2 has been making creaking sounds when I turn around corners and I've been told that old, noisy CV joints are likely the culprit. ...
1
vote
1answer
10 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 ...
1
vote
2answers
145 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 ...
1
vote
1answer
71 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 ...
1
vote
1answer
151 views

How well should a slip yoke be polished to give a proper seal?

Gear oil started leaking out of the rear output seal on my '01 Outback started -- onto the exhaust of course, as every fluid in a Subaru seems to do. It's not a lot, but smells terrible. Along with ...
1
vote
1answer
213 views

Toyota Camry 2000: Odd Coughing when starts

Recently, I notice that my car begins coughing couple minutes after it starts. It have happened since Jan, 2012. First, I thought it might be due to Winter since it is cold weather. However, it ...
1
vote
1answer
289 views

97 Bonneville, strange problems accelerating

I'll try to explain this problem as clearly as possible. I have a 97 Bonneville, automatic transmission. When accelerating from idle, sometimes two strange things happen: the car reaches ~20 mph, ...
1
vote
1answer
165 views

Car shifts hard when warm

My car, 2003 Toyota Camry shifts hard when warm. Fliud level is normal, mileage is 100k. I cannot spend too much time on it, just want to try some inexspensive tests, to understand what could be the ...
1
vote
1answer
3k views

Difficulty shifting into first gear on 1995 VW Golf

It has become very difficult to shift into 1st gear on my 1995 VW Golf. Pushing the shifter fully left and then forward now puts the transmission into 3rd. How can I fix this?
1
vote
1answer
682 views

My automatic Honda Accord will only go past 30-40 mph in D3…How big is this problem?

So I just bought a Honda Accord for a 1,000. Basically the only drive gear that works is my D3. The 1st, 2nd, and D4 gears won't let the car go past 30-40 mph. Is this a serious problem?? What has to ...
1
vote
1answer
1k views

reverse lights always on

I have an older 1993 Mitsubishi Triton ute. The issue is that the reverse lights are always on while the car is running regardless of gear position. The gearbox works, that is to say that the car ...
1
vote
0answers
47 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
0answers
93 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 ...
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 ...
0
votes
1answer
157 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 ...
0
votes
1answer
68 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 ...
0
votes
0answers
164 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 ...
0
votes
1answer
281 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?
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.
0
votes
0answers
140 views

Volvo 940 Dashboard Flashing winter Driving arrow

The flashing “winter driving” arrow on the dashboard according to the maintenance manual calls to take it to a Volvo dealer due to a transmission failure. Could this be due to cold weather, and what ...
-1
votes
1answer
121 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 ...
-1
votes
2answers
85 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