Questions regarding automatic gearboxes, and associated parts such as torque converters

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2
votes
1answer
33 views

250 cc scooter CVT belt repair problem

I have a 2008 Qlink Legacy and the CVT belt broke the other day. I was riding when there was a pop and the bike lost power to the rear wheel. I took the CVT cover off and removed the old belt that was ...
10
votes
2answers
724 views

Mysterious “5th” Gear on a 4-Speed Automatic?

My 1998 Honda Civic LX is equipped with the 4-speed automatic transmission. Before I looked this up, I decided to count the number of upshifts from a stop, and I counted four, not three. This mystery "...
5
votes
1answer
26 views

2012 FJ Cruiser shudder

My 2012 FJ Cruiser has just over 20k miles on it. It behaves oddly when going from stopped to moving, especially when stopped on a decline. The vehicle, when going from stopped to moving, will ...
3
votes
1answer
18 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
39 views

Acceleration practices and wear on automatic transmission

Does a driver's acceleration practices substantially influence the wear on a car's automatic transmission? If a driver accelerates with a RPM > 3500 from stop, is this any "easier" on the automatic ...
4
votes
2answers
70 views

Engine tap/knock/noise after a few seconds of starting

1998 I6 - 4.0L All stock ~175,300 mi 13.8 mpg - mostly city A few months ago, I began to hear a noise that sounds similar to a diesel engine, which begins a few seconds after starting the cold ...
3
votes
1answer
20 views

2005 Chevy Avalanche

I have a 2005 Chevy Avalanche 1500 with 4x4. My transmission is shot and needs to be replaced. I currently have 146,458 miles on the engine, and figured I would replace the engine and transmission. I ...
1
vote
2answers
15 views

Things to check before getting a second hand car [duplicate]

I plan to buy a pre-owned hatch back automatic transmission car. What are the things which I should check before making the deal? Also should I go to the Company owned showroom and ask them to give me ...
5
votes
1answer
34 views

Can I use a FN4A-EL Turbine Speed Sensor on a GF4A-EL?

I have a GF4A-EL on my 98 Mazda 626 GF 2L and strongly suspect the TSS is defective. I can't find any sensors for my tranny, but I have read that the FN4A-EL is just an improved version of the GF4A-...
4
votes
0answers
25 views

Will it harm the transmission to drive with a defective Turbine Speed Sensor?

I recently got a 0715 DTC ( 98 Mazda 626 GF 2L, GF4A-EL transmission ) which is related to the turbine speed sensor. Some of the symptoms according to the ATSG transmission manual are harsh and ...
8
votes
3answers
884 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 ...
3
votes
0answers
29 views

converting tramsmission

my car has in a Toyota 4e engine which uses a corolla 3 speed transmission. The transmission is faulty so i would like to change it to a 4 speed transmission toyota starlet transmission, same (engine)...
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 ...
0
votes
0answers
26 views

honda fit aria (2007) gear engage vibration and sound

A sharp sound and a vibration come when releasing break paddle after the gear is engaged in reverse (R) or in drive (D). When the car is in motion, they get disappeared. what could be the reason?
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 ...
10
votes
2answers
1k views

How exactly does Sport Mode work in an automatic Subaru Outback?

I have 2008 Subaru Outback (160K miles) with an automatic transmission and have been curious about the Sport Mode that can be shifted into. I read in the car's manual that it increases pickup and is ...
4
votes
2answers
34 views

93 Dodge Dakota ATF cooler line

I had to replace the transmission in my 93 Dakota. To get it to drop I had to cut the metal coolant lines that lead to/from the radiator. The stock lines are .315 ID. My question is, can I use a ...
2
votes
6answers
630 views

Proper way to stop auto transmission car

I'm just having my first auto transmission car, with press to start button. How I start the car Press the brake pedal Press the "press to start" button to turn on engine Move gear from "P" to "R" (...
2
votes
1answer
30 views

Wrong oil in trans

I have a 2013 Silverado 2500 with 150000 miles, about 5 miles after an oil change I noticed two hard shifts. The next day I drove 1/2 mile, the trans slipped and is now disabled. I had mechanic ...
5
votes
4answers
615 views

Automatic car won't start, steering wheel won't turn, key just makes car click etc - but radio works?

Someone else was in the driver seat and they were trying to drive. At one point I took out the key and when he put it back in the car wouldn't start. This was yesterday and it still won't start. The ...
8
votes
2answers
398 views

Does engine braking an automatic wear out the transmission?

My question is a variation on these two: Engine braking with an automatic transmission What are the “1” and “2” or “L” gears used for on an automatic? I recently bought an automatic transmission ...
8
votes
4answers
2k views

What are the “1” and “2” or “L” gears used for on an automatic?

In a car with an automatic transmission, we are normally greeted by the acronym PRNDL, or in some cases (older cars) PRND21. I know that the L, 1, or 2 will cause the transmission to stay in a (L)...
6
votes
1answer
64 views

Transmission disengages itself

Seems like my car disengage itself from drive to neutral while in motion. I drive a 2004 Honda Accord. When in drive and in motion, the car starts slowing down even with my foot on accelerator. It ...
6
votes
1answer
50 views

1998 lincoln continental with fluctuating idle when put in gear only (drive/reverse)

I have a 1998 Lincoln Continental. It has 124k miles on it. The history of the transmission maintenance are as follows: Fluid and filter was changed at 29k miles Fluid was flushed at 86k miles Fluid ...
4
votes
1answer
66 views

Does it save wear on AWD drivetrain to shift to Neutral before going into Park or Reverse?

I have an old Subaru with All Wheel Drive. I can feel in some circumstances the larger and more complex drivetrain "winding and unwinding" all those differentials and CV joints. It feels unpleasant, ...
11
votes
4answers
2k views

Does putting an automatic car into neutral at stop lights significantly harm the transmission?

I drive a 2013 Mazda 3, in case that makes any difference to the answer. There seems to be a few discussions on the web which indicate that putting an automatic car into neutral does not ...
3
votes
0answers
56 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 ...
6
votes
3answers
218 views

Optimal acceleration for automatic transmission? [closed]

In a car with automatic transmission, what's the best way to accelerate so as to minimize fuel consumption? Assume I'm not going to change the gears manually. Note that I'm also considering non-flat ...
7
votes
2answers
205 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 ...
7
votes
1answer
139 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 ...
7
votes
1answer
95 views

What could cause high RPMs but no power?

I have a 2006 ford fusion and lately it works fine if I lightly press on the gas. If I press on the gas with full force though it will rev up the RPM's but there will be no power and my car won't ...
3
votes
0answers
21 views

Transmission slip

I have a 2011 Chevy Impala. Once in a while the engine will rev and then kick into first gear. If I slowly press down onto gas petal it will not do this. If I start slow no problems, but if I put foot ...
7
votes
1answer
53 views

How Does Being in Drive Disable the Starter on an ATX Vehicle?

Being used to driving manual transmissions, I occasionally forget to put my ATX in park when I shut off the vehicle ( I'm getting better ). Today I did that without realizing it, and when I went to ...
6
votes
2answers
65 views

Will a Slight Overfill Harm an Automatic Transmission

I flushed my transmission recently, and I overfilled it slightly, maybe by a 1/2 liter on a transmission that takes about 8 liters. When cold, the fluid is a little over the cold mark, but not up to ...
1
vote
0answers
76 views

Auto transmission just stopped working while I was driving

While I was driving, my cars automatic transmission suddenly would not work in drive or reverse but the motor was still running. Does someone know what the problem could be?
4
votes
1answer
96 views

1996 Mustang GT won't start with shifter in Park, but will start in Neutral

I just had this weird problem today. The engine will turn fine, but won't start with shifter in Park. Once started in Neutral the motor runs fine with no hesitations. Battery is strong. Any ideas?
2
votes
1answer
63 views

2007 BMW X3 3.0Si wont start

I made the mistake of buying a BMW when moving to the Caribbean. It ran very well and has had a quarterly service every year. (We basically live on a permanent hill, very steep up and down) Last week ...
3
votes
0answers
47 views

Volvo AW55 W mode hard shift avoidance

I have recently purchased a 2006 Volvo S60 T5 with 136,xxx miles. Like many mid-2000s Volvo's with the AW-55 transmission, it has succumbed to shift flares at 1-2 and 2-3. It is light but I would like ...
1
vote
1answer
49 views

Automatic Transmition shifting gear not changing to anything other than D

When I attempted to park my Mitsubishi Montero 2002, switching the gear stick from D to P did not disengage the transmission. After running from P to D slowly a couple of times, the car did ...
3
votes
0answers
38 views

2008 Honda Accord Automatic Transmission - Transmission seems to be slipping. Is it serious?

I have a 2008 Honda Accord with an automatic transmission. I don't know much about cars. The car seems to be having problems switching gears, especially in low gear. For example, often when I'm ...
5
votes
0answers
30 views

GM 4L60-E Rebuild Questions - Part 1

I am in the process of rebuilding my first 4L60-E (I've done a 4L30-E before) and I had a couple questions. 1st: In terms of the input drum pistons I know there are both aluminum and steel models, ...
5
votes
0answers
75 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 ...
8
votes
0answers
105 views

Severe Noise Under Acceleration from a Stop or Slow Speed

EDIT March 9, 2016 So I took the car to a guy who specializes in ATX gears, and he felt that it's not a tranny problem. Got a second opinion from a Chevy tech who concurred. So due to that and 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 ...
1
vote
3answers
56 views

03 Pontiac Grand Am will not start. Transmission problems?

I have an 03 Pontiac Grand Am. About 9 months ago I had to put in a new motor, I've also put in a new starter and battery. For the last 5 months my car has not been able to go over 50 mph without my ...
8
votes
1answer
57 views

What is the Connection Between Failing Torque Converters and Vibration?

When trying to determine the source of vibrations at idle in my 98 Mazda 626 GF 2L one thing I've found mentioned by many people is a potentially worn out / failing torque converter. However, when ...
3
votes
2answers
68 views

Automatic transmission sticking after car has not been driven for 3 months

My car has not been driven for a while and it is having trouble and sticking when shifting gears. Should I continue to drive it and will this problem fix itself or is there something I can buy like an ...
4
votes
3answers
297 views

Shifting Problem

2004 Acura TL 235k miles It takes a while (2-4 sec) for the car to shift from (P)Park to (D)Drive. After the initial change of gears the car runs perfectly normal.
2
votes
2answers
453 views

Are BMW automatic transmissions less reliable than manual ones? [closed]

I am considering purchasing a second vehicle and am looking at a 2001 BMW 325i with an automatic transmission; however, I have heard mixed reviews of the automatic transmission in BMWs. Is there any ...
19
votes
7answers
3k views

Are manual transmission cars disappearing? [closed]

You don't have to be an expert to notice that over time, the percentage of manual transmission cars has lowered. Automatic cars are not only more popular, but more comfortable, easier to use and ...