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Questions tagged [automatic-transmission]

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

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My 98 ford explorer ac:air won’t turn off unless I turn it off have no clue where to look

Could it be a blower motor or blender or something else
Alpha Seiber's user avatar
-1 votes
0 answers
15 views

What is the book hours on transmission swap on 2002 Ford Expedition?

2002 Ford Expedition 5.4L Automatic Transmission 2wd
Curttog's user avatar
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1 answer
13 views

So i have a 1978 elcamino with a 700r4 that im swapping to a 4l60e. Now i know that its computer controlled so would a eztcu take care of everything?

Need to know if I need anything other than the tci eztcu kit for this swap since the 700r4 doesn't run off a computer and the 4l60e does please help
James's user avatar
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2016 dodge grand caravan transmission, overfilled solenoid issues

I have a 2016 dodge grand Caravan I had the transmission replaced six months ago then just had a new engine put in it got it back drove it for 3-4 days noticed it started to wine took it back to the ...
Kaleb Farlow's user avatar
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12 views

2010 Isuzu NQR diesel, 4KH1 ..CT........auto trans, codes and electric problems?

It is a 2010 Isuzu NQR 4-cylinder diesel automatic transmission, 4KH1 CT model. The problem is no communication between the transmission & the main computer. Codes that I have number 1)..P0756, ...
user83502's user avatar
2 votes
1 answer
221 views

Thump in transmission when braking

Transmission on 2014 Chrysler 300 AWD make a thump noise in the transmission when applying brake. Mechanic listening to noise with a stethoscope to confine noise. Transmission is starting to slip ...
Mario Mazza's user avatar
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14 views

Strange noise only when accelerating in Peugeot 301

A variant of Peugeot 301 with naturally aspirated engine and DAE 6 speed AT. only if the car has warmed and only when accelerating, there is a knocking noise frequency around 1Hz at 60kph and ...
hosm's user avatar
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1 vote
1 answer
63 views

What transmissions are interchangeable with a 2006 Chevrolet Silverado extended cab automatic 6lug truck?

What transmissions interchange with a 2006 Chevrolet Silverado extended cab automatic 6lug truck
Whitney's user avatar
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38 views

Manual VS Automatic Transmissions Suitability

On weekends I do deliveries. I make over 150+ stops, short distances apart and engage gears 1/2/3 and reverse during every stop. Which transmission setup would be best suited for such a scenario? ...
Dave1UK's user avatar
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1 vote
1 answer
23 views

When reinstalling a transmission what other components should be replaced?

2009 Kia Sedona (Base) automatic transmission. that has a rebuilt transmission developed a huge fluid leak suddenly. All fluid gone in seconds. I've taken it out and found that The Tpump bushing wasn'...
XylyX's user avatar
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47 views

Is the clutch in automatic transmission gearboxes unduly used, as with manual transmission, when a car is driven at ultra low speeds?

I have yet to understand how an automatic transmission gearbox works (not CVT—those are trivial). This question is an attempt to figure out a small piece of the puzzle. Properly handled, the clutch in ...
Sam7919's user avatar
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Car sometimes stalls going from idle accelerating after start

Saturn ion 2004, 2.2L automatic Usually it drives perfectly fine, but sometimes after being turned on cold or more usually turned back on after I've been in a shop for maybe 5-30 mins, the car will ...
AislaSeine's user avatar
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1 answer
53 views

Car won’t start despite a jump

2010 Ford Fusion SEL Been having some troubles with my car lately, following a multitude of things (including a missing undercarriage cover while it was insanely snowy, and -25C weather). It’s been ...
Tor Broughton's user avatar
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27 views

Transmission want shifted into 3rd or overdrive . It's in a 99 chevy z71 5.3 engine was low on fluid i filled it up still only has 1st and 2nd

Transmission was low on fluid so I think it got hot . I put some Lucas in it and it did change any is there a way to fix it with rebuild it
Heavy Chevy's user avatar
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1 answer
50 views

Do automatic cars shift gears even if the wheels are slipping? [closed]

When cars slip in the snow for example, if you apply full gas will the transmission shift?
Boeing787's user avatar
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2 votes
1 answer
235 views

When should engine fans turn on to cool transmission?

2010 Silverado 1500; automatic transmission; 500,000 km. I suspect the engine fans are not turning on when they should. Reason: When stuck in traffic recently, the truck became sluggish and slammed ...
User1974's user avatar
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3 votes
1 answer
192 views

Why does my cars rpms drop to idle when not pressing accelerator?

Context: I have an old (1994) diesel van. It has a transmission computer, and not an engine computer. It's not OBD2 compatible, so it's mostly just simple sensors and whatnot. From my recollection, I ...
Matt Strom's user avatar
1 vote
0 answers
27 views

Transmission - Poor Shifting - Next Steps

My transmission shifts poorly most of the time. The poor shifting feels like when you manually shift to a lower gear when at speed. The shifting is far from violent and has no audible noise. The ...
user125877's user avatar
2 votes
1 answer
214 views

How does a modern automatic transmission know you're on a ramp? (making "1, 2" unnecessary on modern transmission)

I haven't rented a car in a while, and those are the only times when I drove cars with automatic transmission. In the past I always saw "1" and "2" on the shifter. If you're going ...
Sam7919's user avatar
  • 471
3 votes
1 answer
338 views

How do I fix a broken connector inside the transaxle?

Problem I was trying to replace my shift solenoids, and when I pulled the electrical connector off of one of the solenoids, the plastic tab on the connector broke off. I'm concerned that if I leave ...
Charlie Armstrong's user avatar
2 votes
2 answers
2k views

RPM drops quickly after letting off accelerator

The problem: In my 2005 Chevrolet Malibu, the RPM drops down to around idle whenever I let off the accelerator pedal. It feels as if it were a manual shift car and somebody pushed the clutch pedal in ...
Charlie Armstrong's user avatar
1 vote
0 answers
141 views

Toyota Rav4 bucks in reverse

I drive a 2007 Toyota Rav4, and it bucks / jumps in reverse when backing up a steep hill or accelerating on flat ground. When I first noticed the problem, I was backing up an unusually steep hill, so ...
Joseph H's user avatar
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19 views

1997 Chevy Blazer: Will a TCM from a 2001 work in a 1997?

1997 Chevy Blazer 4.3 4x4. Transmission has only one forward gear. Will a TCM from a 2001 Chevy Blazer work in my 1997? Had a trouble code for shifting solenoid a and b and tc and tcm.
Walter Arnold's user avatar
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0 answers
106 views

Need to know the labor time or book times to replace a automatic transmission in a 2017 Dodge journey 2.4 l automatic transmission front wheel drive

I need to know the flag hours to remove and replace a transmission in a 2017 Dodge journey 2.4 l front wheel drive
Mike Daniel's user avatar
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106 views

Why did old planetary gearboxes use servos and brake bands instead of multi plate clutch packs to brake certain elements of a planetary gearset?

For example in the picture below you can see an allison cd-850 planetary gearbox which was first designed in mid 1940s and used in patton tanks. We can see that it uses brake bands to hold the ...
Timothy Scherer's user avatar
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0 answers
30 views

Torque converter

I accidentally put qt power steering fluid with qt transmission fluid in torque converter. Put torque converter into transmission hooked transmission to motor then realized. PSF ATF. Will it be ok to ...
Peggy 's user avatar
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1 vote
1 answer
205 views

2002 Nissan Maxima - transmission shifting & performance issues - P0720 & P1574

I have a 2002 Nissan Maxima which which started exhibiting a number of transmission issues shortly before and during a 2,600 mile road trip across the country, and is still experiencing these problems;...
Ethan Bierlein's user avatar
0 votes
1 answer
1k views

Can I shift from D to 2 or L while my Toyota Corolla is moving?

I drive a Toyota Corolla (E120, year 2000). It has automatic transmission with these options: P, R, N, D, 2, L. I almost always drive using "D". If I am driving at around 70 km/h (e.g. on ...
Flux's user avatar
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1 vote
0 answers
51 views

Volvo v60 Shake when shifting to D

I recently bought a 2012 V60 D3, the whole car shake when I shift from P to D. After some research online they say it's a Design flaw with Aisin transmission that cause an internal leak. Does anyone ...
Alan Omar's user avatar
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47 views

Why is my car still shaking and making noise after i change the motor mount and transmission mount

I have a 2011 Chevy impala I put on a new transmission mount and motor mount but its still idling and jumping what should I do
Candy Jones's user avatar
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3 answers
57 views

Hard start and engine stalling

What should I do to permanently fix these car problems? I was called to another garage to fix a 2005 300c chrysler. The problems of the car was Hard or no start, red lightning bolt flashing, no ...
Paulo's user avatar
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62 views

Need to get truck tranny fixed

Have 05 avalanche tranny out given a fresh good one out of 99 Silverado. What am I gonna have to do to get it to work in my truck. 1 vehicle. Avalanche is 1500 2wd 5.3 plugs are different on shift ...
user77827's user avatar
0 votes
0 answers
29 views

When put into drive, the car makes a click/crunch noise after a second

2006 Honda Accord with almost 230K miles. When put into drive, the car makes a click about a second after the gear is put into drive. What could this be? Car drives and shift with no problem.
Mo Akashi's user avatar
-1 votes
2 answers
59 views

Is a very harsh downshift indiciative of transmission failure?

I have a 2015 Hyundai Accent with a 6-speed auto transmission. The transmission shift smooth almost all the time. But at certain speeds , if I completely completely depress the throttle from like 0%-...
Scorb's user avatar
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0 votes
1 answer
383 views

Is it safe to change DSG transmission fluid in an old car?

Facts about the car: 16 years old VW with 280kkm/170k miles on the odometer I plan on driving it until it dies 2.0 TDI motor and a DQ 250 02E, wet-clutch, six-speed original DSG transmission no ...
user4520's user avatar
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0 votes
2 answers
98 views

Can 99% of transmission fluid be removed from a transmission through the filler hole?

I spoke with a service shop about getting my transmission fluid changed (in my 2014 Kia Rio 6 speed auto). I was curious if they could get more of the fluid out than myself just dropping the drain ...
Scorb's user avatar
  • 378
0 votes
0 answers
26 views

Megane 2002 auto started shaking and lost power

This evening the car was driving fine and then suddenly when it was idle it started really shaking. We began to drive and it still shook but the engine light began to flash and you could feel the car ...
Robo_b's user avatar
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1 vote
1 answer
61 views

Automatic transmission trouble

I have a Mercedes A-180 with automatic transmission, which has recently started jerking at gear changes, especially the lowest gears - but it isn't always. About half the time it works smoothly for a ...
j4nd3r53n's user avatar
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0 votes
0 answers
453 views

Automatic transmission truck drops in rpm when i left off the gas pedal in top gear

I have a 1988 Ford F-350 with 7.3 diesel v8 and 3 speed c6 automatic transmission. When i put it in D and im driving at high rpm and take my foot off the gas in 1st and 2nd gears the rpm stays ...
Timothy Scherer's user avatar
1 vote
1 answer
45 views

Why do Automatic planetary transmissions have gear teeth cut on the outside of the ring gear?

it makes sense that there are teeth cut inside the ring gear since planet gears rotate around inside of the ring. However there are also gear teeth cut on the outside of the ring gear, i think they ...
Timothy Scherer's user avatar
5 votes
4 answers
2k views

Should I stop at 'N' when switching from 'R' to 'D'?

I have an automatic BMW 1-Series. But I guess this question can be asked about all automatic cars. Let's say I am stopped at a parking lot in "R". I usually just hold the gear switch and go ...
FerX32's user avatar
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1 vote
0 answers
109 views

2002 Honda Civic (Automatic) Intermittent shifting Issue

I have a 2002 Honda Civic that has started having troubles shifiting from park into reverse/drive. It stays in park just fine. It started where it would shift into reverse and drive just fine, but ...
Adam Yost's user avatar
2 votes
1 answer
146 views

1997 Honda Accord automatic stuck between park and reverse

After starting my 1997 Accord automatic in park, I tried shifting to drive, but the gear selector got stuck between park and reverse. This had happened a few times previously, but it was easily ...
DavePhD's user avatar
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0 answers
24 views

My truck will not accelerate if I pass second gear

2008 Ford F-150 4.6 Triton, Interceptor. Also I had an alert on my phone that the transmission fluid was low( this was in November 2022, the issue happened January 2023)
user74761's user avatar
2 votes
0 answers
34 views

Chervolet 2008 Suburban, how to remove transmission fluid pan? Cable mount is in the way

Was trying to follow this YouTube video for a transmission fluid change (even though his is a 2007 and mine is a 2008), but at the marked point, he says to pry a certain cable mount out of the way, ...
TheLabCat's user avatar
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5 votes
1 answer
2k views

Chevrolet 2008 Suburban, I removed the transmission fluid pan by mistake. Can I just put it back on and refill fluid?

I was trying to change the oil on a Chevrolet 2008 Suburban, and didn't know quite what I was doing. I used Motor Medic Motor Flush, and it said that if the car was over 75,000 since it had last been ...
TheLabCat's user avatar
  • 183
1 vote
1 answer
114 views

Subaru Forester 2008

Just had the transmission changed and all the lights are on ABS Cruise check engine light oil temp flashing when I start the car there is code p0732 p o 763 and PO700 do I need to have this ...
Peter Spinelli's user avatar
1 vote
2 answers
2k views

Vehicle shifts into neutral; requires restart to get going

2010 Buick Lucerne CXL - My car keeps shifting into neutral every time I come to a stop and I have to turn the car off and back on to get it to go back into drive and I have to do this over and over ...
Chelsea Forrester's user avatar
2 votes
1 answer
129 views

Car reversing in drive

2012 Optima (automatic) with a broken transmission casing mount (1 of the 3, was in the process of repairing). Was on the freeway yesterday and I felt a drop/shift in my engine and every dash light ...
stressedonut's user avatar
1 vote
1 answer
239 views

After collision Yaris won't start when in park, or shift into park while engine is running

My kid has a small accident in slow-moving stop-and-go traffic. Yaris rear-ended the car in front if it. The plastic front end of the body was destroyed, between the headlights, from front bottom up ...
Stay-at-home-dad's user avatar

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