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

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3
votes
1answer
34 views

1998 Nissan Sentra transmission

Why does a 1998 Nissan Sentra Automatic transmission change to neutral from reverse while going downhill? This just started a couple of weeks ago. The engine shut off the first couple of times it ...
4
votes
1answer
273 views

Transmission damage due to uneven tread wear on AWD vehicle

I have a 2013 Subaru Impreza with a continuously variable transmission with ~40k miles on it. About two months ago I blew out the front right tire and took it to a tire shop. The folks at the tire ...
3
votes
1answer
45 views

What would go into a tranny swap on a modern vehicle

I have a 1999 Isuzu trooper and I have been toying with the idea of doing an engine and transmission swap on it. If all goes well with the engine I plan on getting I would like to replace the ...
-2
votes
1answer
26 views

problem changing gear volkswagen polo 2001

I have problem changing gear with my volkswagen polo 2001. I was told that a ball is missing chendra Alwar
2
votes
1answer
44 views

I have a 2000 Suzuki Grand Vitara 5 Speed Ticking noise

I hear a ticking noise coming from the driver side rear end, possibly coming from the differential, not sure though because i checked out the pinion gear and i don't see any chips off any of the ...
4
votes
1answer
62 views

Auto Trans gear selector does not engage ANYTHING?

2002 BMW 325xi. It has the GM 5L40-E auto trans. The vehicle disengaged drive while moving. My g/f was driving the car and the transmission was engaged i.e. power was being transmitted from the ...
2
votes
1answer
125 views

how electric car transmission system work

How electric car transmission system working? Is it having auto or manual gear concept like gasoline vehicles? AS electric motor can run in any speed (slow). Is it necessary to have clutch?
2
votes
1answer
85 views

Why does my gear-shift lever seem to freeze in position sometimes?

My 1996 Ford Escort shift lever sometimes won't move into 1st gear position unless I turn the motor off, then start in that gear. It also, sometimes, won't move into any of the gear positions and I ...
0
votes
1answer
57 views

Chevrolet 6L90 transmission interchange

Are 6L90 transmissions interchangable between the different types of vehicles that GM puts them in? Example: Camaro and Silverado 2500HD
4
votes
1answer
82 views

Banging sounds coming in front of my car

I'm having a banging sounds coming from the front of my car. Usually they appear after 5-10 meters when I'm driving. It's like one small knock and then around 5-6 more knocks and then they stop until ...
4
votes
1answer
94 views

Transmission Grinds only in second gear - Need Assistance

I have a 2003 Cadillac CTS, 6 cylinder 5 speed. 104,000 miles. changing from 1st-2nd gear, After letting out the clutch in 2nd gear it has a grinding sound until I shift to 3rd. And only 2nd gear has ...
0
votes
1answer
106 views

1996 Ford Explorer Speedometer and Shifting issues, O/D light flashing

My 1996 Ford Explorer began having issues at the end of a moderately long drive home while going approximately 60 miles per hour (not sure if related; I drive that speed often). The speedometer ...
4
votes
1answer
323 views

Why are most motorcycles 5 speed than 6 speed?

I have a Honda Trigger motorcycle. I have seen most of the motorcycles even like Karizma ZMR having 5 gears. What would be the reason to have just 5 gears even for 223 cc motorcycles?
4
votes
2answers
255 views

Unable to move in first and second gear in VW Polo

I am facing a problem in first and 2nd gear in my VW Polo diesel car. I am unable to move car in these gears, I tried it so many times. So for the time being I used 3rd gear to move the car & ...
2
votes
2answers
66 views

Near stalling shake at slow turns

It is 2012 Skoda Octavia 1.4 TSI DSG7. When slow turns (i.e. u turns), car starts to shake like it is about to stall. The rpm is low but stable, engine sounds under-rpm, tiny vibration on steering ...
3
votes
1answer
25 views

6L90 Transmission swap

I'm swapping out a worn out 6L90 transmission that has over 220k on it in a 2011 GMC 2500 HD with one that has 89k on it from an identical truck. Will it have to be reflashed or reprogrammed to work?
3
votes
1answer
65 views

Gearbox impact of skipping gears driving downwards

I have a driving habit that i guess is harmless to the vehicle, and i want to hear your opinions on the matter. Sometimes i change the gears, for example, 1st then 3rd then 5th, when i am driving ...
2
votes
1answer
104 views

Hesitation in RPM drop when shifting manual transmission, 2007 Mazda6

I recently said goodbye to a 2002 Mazda Protege that made it to just over 300,000 miles. So naturally I purchased another Mazda - 2007 Mazda6, 5-speed manual, 91k miles. Besides the difference in ...
3
votes
1answer
349 views

Manual Transmission- Can bad shifting destroy transmission

Been driving a car with a manual transmission for 6 years. I never had to replace the clutch but the transmission recently blew up on me. I was aware that my car was leaking transmission fluid for ...
4
votes
1answer
193 views

What is “Long Gearing”?

I see in some city car reviews, like the Citroen C1, that they have something called "Long Gearing". What is Long Gearing? What are the implications of it?
4
votes
0answers
37 views

Transmission not responsive - Dodge Durango 2001 slt 4.7

My truck was in a salt water flood when hurricane Sandy hit New Jersey. Since then, the motor was replaced, ECM computer, shocks, ball joints, hubs, rear, front calipers, power steering pump, A/C ...
2
votes
2answers
47 views

2006 Pontiac Montana

I recently purchased a 2006 Pontiac Montana and the dealership seems to have a done a pretty good job with pre-lot reconditioning. The filters were changed, oil, and a new battery and tires were put ...
5
votes
1answer
175 views

Is it bad to shift into reverse while still moving forwards?

I often put my manual car into reverse while still moving forwards. I do it at less than 10mph. However, sometimes the gears crunch. Am I doing any damage by doing this? Why do the gears crunch? I ...
2
votes
1answer
22 views

99 Jetta transmission trouble

My wife's 99 Jetta is very hard to get into 1st gear. 2 out of 3 times you will hit 3rd gear. She often has to start off from 2nd gear. Is there a way to adjust the linkage or something to allow more ...
6
votes
3answers
5k views

Is it bad to drive slow at low rpms in 4th or 5th gear? Do you get better gas mileage?

Obviously running your engine at too high an RPM for too long isn't good. But what about running it too low? not so low that it stalls or lugs, but within around 1,000 RPM? Would you get better ...
1
vote
1answer
85 views

Downshifting to a stop- wear and tear?

I drive a Mustang GT, and I love the deceleration "pop" that you get when the engine revs climb without the accelerator being pressed, so as one might surmise, I tend to downshift to a stop at lights ...
2
votes
1answer
62 views

Cars 101: How is torque conveyed from transmission to differential?

This is a very basic question. I understand that the torque is passed from the engine onto the transmission via the flywheel in manual transmission or flexplate in case of automatic. The transmission ...
4
votes
1answer
113 views

Safe Way to Remove Engine Mount Support?

I'm working on a 98 Mazda 626 2L and I'd like to change the transaxle oil filter. However, a number of the pan bolts are blocked by a beam which has an engine / transmission mount sitting on it ( see ...
3
votes
1answer
462 views

Occasional Crunch/Grinding noise when shifting into first gear at speed

When I am doing about 30-20mph, and am about to stop at a junction, where I know I will have to stop, I shift my car into first gear However, sometimes when I do this, it makes a quick gear grinding ...
3
votes
2answers
622 views

Why is the symptom of a bad camshaft position actuator hard-shifting?

I recently had one of the camshaft position actuators on my '07 Pontiac G6 go bad. The symptom was a sort of "hard-shifting" that made me think something was wrong with the transmission. Luckily, ...
1
vote
1answer
130 views

2005 Mini Cooper manual transmission stuck in between gears

Trouble started popping out of 5th gear, then also 2nd gear, then all the gears. Then it wouldn't go into gear, it would go in if I gave it gas, enough to get it home. I was able to drive it to a ...
1
vote
0answers
16 views

2009 Volvo S40 sudden thump [closed]

When at constant speed I notice a slight thump. Almost as if for a split second the car lost fuel to the engine then kicks back in. It does not register on the instruments. Also at lower speeds it can ...
2
votes
2answers
259 views

Transmission Fluid Leaking from AC Condenser. Can I replace it myself and drive it to shop to do the before & after work?

My car is a Mazda Tribute My goal is to have the AC Condenser replaced. However, there are certain steps in the process that I can't do myself. These are: Before work: Discharge the AC Empty the ...
3
votes
1answer
83 views

2006 Altima slow to shift into 4th when running cold

I have an automatic 2006 Nissan Altima and am having what I assume is a transmission issue. When I have not recently been driving, my car is slow to shift into 4th gear. Normally it will shift and I ...
1
vote
0answers
38 views

My transmission is coming out of gear just as I get going [closed]

My transmission in my 2000 Dodge Dakota comes out of gear shortly after I begin to drive, so what is my problem? I only have tried to adjust my 4 wheel drive shift. How do I diagnose this problem?
2
votes
1answer
65 views

Dealer can't program new ECU for 2001 Mercury Cougar because of transmission type

I brought the original ECM in to order a replacement, put it in myself, and then towed the car to Ford. Now they are saying they can't program it because the computer is for a manual and my car is an ...
7
votes
2answers
907 views

Motorcycle transmission occasionally pops out of gear

I'm having an issue where the transmission will occasionally downshift by itself during a fast acceleration. I have a 2005 Suzuki Vstrom 650 and it's been a great bike so far. At pretty high revs, ...
3
votes
1answer
59 views

Building a custom car

I'm curious, is it possible (and how hard would it be) to build a custom car with an engine from a different brand than the transmission? For example, I'd get an old V12 Mercedes engine (with two ...
0
votes
0answers
29 views

How does FWD moves rear wheels without skidding [duplicate]

In a RWD vehicle the rear wheels have a differential and the front have ackermann steering or so, that prevent both the front and rear wheels from slipping, but in a FWD the differential is part of ...
2
votes
3answers
70 views

What is this thing behind my oilpan and is it bad that it's cracked?

Sorry I can't be more specific. I have no idea what it is and my google-fu has failed me. Here is an image of the part in question. It is in the center of the image and has a large crack in it. ...
3
votes
1answer
61 views

After long journeys, gear slips in 5th, but not into neutral

This is a follow up to another question I asked. I've managed to get some video of it happening this time. It started happening after travelling for about 2 hours. I was experiencing heavy traffic. ...
2
votes
2answers
78 views

Transmission replacement and changing gear ratios

I have 1998 Dodge Durango. It's a 4x4 5.9L v8. I'm looking at replacing the transmission and seeing as I don't really need 4wd in the city, I'd like to get better fuel economy and better acceleration. ...
6
votes
1answer
80 views

Wrangler JK transfer box options

Apologies for a very Jeep-centered question, that may not interest everybody. Here goes: I own a 2009 Wrangler JKU (pre face-lift), equipped with the 2.8 TD engine, Chrysler NSG370 six-speed manual ...
7
votes
2answers
924 views

Why do hybrids still use mechanical transmission?

One of the comments on this question reminded me of something I've been wondering for a while. Given that engines get the best efficiency at peak torque, why do most hybrid cars still use a mechanical ...
2
votes
4answers
186 views

Remove Transmission Oil Pan Stuck Bolt

I'm still in the process of changing my 2009 Nissan Sentra CVT fluid. But now I'm stuck, well, me and the pan bolt are stuck. I tried the combination wrench but couldn't get enough leverage. Took the ...
3
votes
2answers
7k views

Reverse Gear Doesn't Work Anymore on an Automatic

I've been having troubles with my automatic transmission for sometime now mainly it's lost it's smoothness and has been slipping first thing in the morning. I've practically worked on every other ...
2
votes
0answers
59 views

2006 Nissan Maxima transmission

I removed the transmission from a 2006 nissan maxima and have a 2 3/4" metal ring with teeth pressed into it and I don't remember where it goes
2
votes
1answer
104 views

How Many Partial Oil Transmission Fluid Changes Until Clean

I have to change my transmission oil (2008 Nissan Sentra CVT). It has a 7 liter total capacity, but due to the torque converter, I can only drain 4 liters at a time. Thus, I have to make several ...
2
votes
1answer
93 views

Transmission knocking and coolant bubbling?

My 92 Ford Explorer knocks a bit when I switch gears. No matter what gear I switch to... (park to drive, drive to reverse, drive to neutral, neutral to park, it doesn't matter)... the car just rocks a ...
5
votes
1answer
205 views

Rust underneath rear of car (Toyota Mk1 MR2)

I have recently acquired an old (1989) Mk1 Toyota MR2 and took a few photos of the underside rear of the vehicle. There seems to be a fair amount of rusting on the rear axle and gear box: gear ...