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

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2
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1answer
3k views

Engine Coolant Temperature sensor goes bad whenever the outside temperature is hot

This is on a 1998 Chevy Cavalier, automatic transaxle, 2.2L. This sensor went bad last July and I replaced it then. When it goes bad, the check engine light comes on and then the temperature gauge ...
2
votes
1answer
2k views

Auto transmission shifting late, staying in low gear

The mother-in-law's 2005 Renault Clio (auto) shifts very late and stays in too low a gear. When decelerating the tranny downshifts early (it really likes the revs). The garages all want a heafty sum ...
2
votes
2answers
159 views

Automatic Transmission - Shifting from Neutral to Drive while in motion

Recently, I've developed the habit of using the neutral gear in my automatic Honda Fit when going down slight inclines where I would otherwise have to use the accelerator to maintain speed. I ...
2
votes
1answer
102 views

Toyota Hilux Surf 1998 Stuck in Park and speedometer and odometer not working

I just bought a 1998 Hilux Surf. It has an automatic gearbox. When pressing the brake the drive selection should be unlocked, but it does not. I need to use the "red button" to unlock the drive ...
2
votes
2answers
373 views

On a BMW E46 330Ci, is it necessary to pull the handbrake lever when you're in 'P' mode?

My flatmate drives a 2001 BMW E46 330Ci automatic transmission. I sat next to him while he drove us to the supermarket. When we arrived, I noticed that he only put the gear lever into 'P' and switch ...
2
votes
1answer
54 views

Can scraping the transmission bad

I had to drive on a very poorly paved street a few weeks ago with my car, and it was so poorly paved that I felt I was offroading, due to the deep potholes, at one point, my car's underbody kinda hit ...
2
votes
1answer
80 views

Caravan Automatic Transmission gear selector

2001 Caravan. Very hard to change from park to any other gear. Selector very loose when pulling down to shift but very hard to get it to stop at a specific gear. Then it is almost impossible to put ...
2
votes
2answers
389 views

2001 Honda Civic LX won't stay in 4th gear

I have a 2001 Honda Civic LX, automatic transmission. There are 3 gear settings: 2, D3, and D. If I'm driving in D3 and shift into D, I can feel it shift gears up (from 3 to 4), but then it ...
2
votes
2answers
435 views

Improving fuel economy in high-milage automatic transmission car

Obviously this question is similar to How to improve fuel economy in high-mileage car? except I am asking specifically about automatic transmission car. The car still delivers lots of ...
2
votes
1answer
770 views

2006 Cobalt SS - Traction Control Light & Hard Shifting

I drive a 2006 Cobalt SS (not supercharged) with the 2.4L engine. In the last month or so the traction control light has been coming on periodically. Turning the engine off and back on causes the ...
2
votes
3answers
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 ...
2
votes
0answers
34 views

Car cranks but will not start after transmission replacement

The 2006 Infiniti G35 would crank but not start after a transmission replacement. I found 2 transmission codes. U1000 which is a CAN bus code and P1815 which is the manual shifting code. It is an ...
2
votes
0answers
40 views

1992 Mitsubishi 3000gt sl. no power and won't go above 2k rpm

I bought an automatic 1992 Mitsubishi 3000gt sl 2 days ago. I got it cheap knowing it would have problems, and that's why I'm here. When I put it in drive and slam on the gas the car just simply ...
2
votes
1answer
464 views

Faulty TCC solenoid or bad computer?

Make: Pontiac Model: Sunfire Year: 2001 Engine: 2.2 L Trans: Automatic Hello to every one, bought my first car and it is fine except for this little annoying problem. After driving it for a ...
2
votes
1answer
220 views

2001 Mercury Sable — Rough Idle/High RPM and Transmission Leaks

I have a 2001 Mercury Sable (24V DOHC V6) that has been having problems with its vacuum system. I live in Florida where the average temperature lately has been in the 80s. For roughly a month now, ...
1
vote
2answers
237 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
918 views

Should I change automatic transmission fluid on an older vehicle?

I have a Pontiac Vibe 2004 with an automatic transmission. The mileage now is around 120k miles and I've never changed the transmission fluid. There are no mechanical problems with the vehicle at the ...
1
vote
1answer
93 views

Cost to alter the transmission system

How expensive would it be to replace a manual transmission system to an automatic?
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1answer
154 views

Automatic Micra moving on its own & idle speed

Just bought a used Nissan Micra (automatic transmission). When I depress the brake and change into D or R to move off, and then let go of the brake, the car starts moving off slowly. Only had one ...
1
vote
1answer
1k views

What does PRNDSB means?

My Daihatsu Mira does not have any manual, Its an automatic car with TurboEngine and Gear with PRNDSB. What does all these means? My car is four wheel drive as I can see rear differential in it. If ...
1
vote
1answer
299 views

how to find if a car can drive on hills easily or not?

I have a Daihatsu Mira car with 650cc, it has a Turbo Engine with an automatic gearbox. I want to go to a hill station but not sure that this car can drive there easily or not. I want to go to a point ...
1
vote
2answers
135 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 ...
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2answers
19 views

2010 VW Stuck in Park

I have a 2010 VW Jetta Stuck in Park. When I turn it on, press the brake, and press the shifter button it doesn't move. How do I get it out of park? The brake light and dash indicator do toggle ...
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2answers
22 views

Towing a trailer with a 2006 Honda Civic VXi 1.8 Auto

I will be using a trailer for my Dec. holiday. I have a 2006 Honda Civic VXi 1.8 Auto. What I need questions on: 1) Do drive in the normal D or D3? 2) Pulling a trailer with an automatic, how does ...
1
vote
1answer
21 views

2003 automaitic 2.4l dodge stratus transmission concern?

Our starter is out on our Dodge. We had intended on having it professionally towed to our mechanic once we got a date set. A family member took their own initiative to pull it by a rope from a Kroger ...
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vote
2answers
37 views

Audible thud when automatic shifting

My Audi A3 with automatic transmission is emmiting this weird sound when I let off the gas at slow speeds. I think the car shifts up to a more efficient gear (probably 3) thinking I don't need to ...
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vote
2answers
170 views

Toyota Corolla 2011 not accelerating when on 60mph or above

I recently bought a toyota corolla 2011 s from a local dealer with 80,000 miles on it. In my test drive everything seemed normal and was satisfied with the deal. But on a recent trip when i actually ...
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2answers
142 views

Automatic & manual transmission

I read the following: Automatic transmission uses torque converter and planetary gears, while manual transmission uses clutch and a gear box. In automatic transmission, computer and hydraulics ...
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2answers
673 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?
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1answer
650 views

Manually shifting an automatic transmission?

My car has been rather sluggish lately - both ABS and TCS lights are on, which means there is a sensor error somewhere. I haven't had the time to look for and fix said error, but I have had to drive ...
1
vote
1answer
524 views

Automatic trasmission gear lock when accelerating

For awhile now since getting my first car (and only driving Automatic transmissions) I've had plenty of experiences where when making a turn out of a parking lot with my wheels turned a bit too much, ...
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1answer
30 views

Change of transmission oil

automatic transmission My service manual states that the fluid to use is Dexron 11 .My local garage mechanic used ATF 111 is this ok?
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4answers
164 views

Tunning the ECU of a Volkswagen Golf MK6 1.6 TDI DSG

I am a owner of a Volkswagen Golf MK6 1.6 TDI DSG (105HP), and i am a beginner in mechanics, but in computers i am an expert. I stumbled upon those days on some websites that claim to bring you ...
1
vote
1answer
57 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
3k views

Why is my car hesitating to accelerate only when I first start my car?

I've got a 1999 toyota corolla with over 170K miles, and I've had my fair share of problems over the years. Currently, I have this problem that my car seems to hesitate accelerating when I first ...
1
vote
1answer
256 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
441 views

Differential Fluid Plug Right Above Catalytic Converter? - '99 Avalon XLS

Recently I was doing some routine maintenance on my 1999 Toyota Avalon XLS and when I was checking the 95k mileage procedures one of the items which caught my eye was replacing the differential fluid. ...
1
vote
1answer
6k views

Best way to diagnose and fix a shifter that sticks in park?

I have a 1997 Caravan [short wheelbase, base model] with a 4-speed automatic transmission. After it sits [off] for a few hours, the shifter will get stuck in park. A little jiggling and a hard pull ...
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0answers
52 views

2003 mazda 6 won't move or go into gear

I was driving this vehicle on the highway going home. All of a sudden I noticed the oil light coming on, battery light came on too and I could not go past 60mph. So I suddenly pulled over and as soon ...
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0answers
84 views

Subaru Forester XT has a hissing sound under acceleration and lacks power

I want to buy an 06-08 Forester XT and on Friday I went to test drive an Automatic. Now, I know the auto box isn't the best and the forester weighs a good 300kg/600lbs more than my Astra Coupe, but it ...
1
vote
2answers
105 views

2007 Nissan Frontier Transmission, Differential & Transfer Case service intervals for light driving?

According to the owner's manual service/maintenance guide, automatic transmission fluid, differential oil & transfer case oil should be inspected for leaks at the following intervals: ...
1
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0answers
82 views

How can I rev my engine in drive while holding the brake and not stall? [duplicate]

Possible Duplicate: Why doesn't the engine stall out when you come to a stop with an automatic transmission? Occasionally I press both pedals simultaneously. I can feel my car trying to ...
0
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2answers
363 views

Is changing gear to `Neutral` at all possible times a bad practice? [duplicate]

In a Automatic Transmission vehicle, changing gear to Neutral at all possible times like, before breaking for stopping for a color light or driving downhill will save the fuel in a considerable ...
0
votes
1answer
45 views

Volvswagen Passat went out of control

It was raining, and I was on a Motor Way, driving at about 100 mph and approaching 110. It was an automatic Volkswagen Passat, 12K miles old. The car started behaving weirdly, and it started shaking ...
0
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2answers
119 views

In an automatic transmission, what decides to change gears? [duplicate]

So say there is an automatic transmission in a car. Is there a computer inside the transmission that decides to change gears, or is there a computer in the car that tells the transmission to change ...
0
votes
1answer
45 views

Do I need a new ECU after replacing the transmission?

I replaced the transmission in my 2002 Lexus RX 300 about one month ago. The mechanics reprogrammed my ECU immediately, and they advised me to replace my ECU with a new one, because with the old ECU I ...
0
votes
2answers
178 views

RPM jumps up & back down at 40mph

My question is for a 2006 Dodge Magnum, 2.7 liter engine. Just over the past month or so, I noticed when I'm cruisung, just coming from a dead stop, when I'm at 40 mph my car kinda feels like it ...
0
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1answer
71 views

trans codes trans not shifting o/d is blinking

I have a trans problem my truck lost power o/d light is blinking and trans does not shift at all it has codes that are p1747 p0755 p0743
0
votes
1answer
82 views

How to identify transmission issues

I have a new Camry L (4 cylinder 5 gear)with about 6k miles on it. Whenever I push the car from 0 to 30 mph and then let go easy on the gas to keep the car at 30-35, then I can feel the car 'jerking' ...
0
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1answer
96 views

Trying to diagnose from this sound when accelerating

I have a '96 Holden Apollo, automatic, that has a point when accelerating where it sounds like its revving up a bit higher and seems like the gears might not be really gripping. Thats my uneducated ...