Questions tagged [automatic-transmission]

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

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Is it nessesary to push shift lock when shifting from Reverse to Drive?

Is it doing damage to an automatic when you don't push the button as long as you've stopped before changing directions?
David Brent's user avatar
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vx 2002 commodore Seized when going from reverse to drive

Tonight, i was reversing uphill to exit a park, put my car into drive and it Seized up. I had no control over steering or my break pedal, it would also not start up again. the only other issue ive had ...
Emma's user avatar
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2001 bmw 325ci auto transmission

I have a 2001 BMW 325ci with an auto transmission. My problem is that when I put it in gear it only goes in reverse but not forward. In forward it only revs up. My engine light is on and says my cam ...
ulysses mendoza's user avatar
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1 answer
2k views

Torque converter issue?

My car is a BMW 5 series with the ZF8 automatic transmission. It doesn't shift perfectly - jerks a bit in all gears shifted in the first drive of the day, for around 10 miles then it becomes much ...
CristianC's user avatar
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Revs go up, but car doesn't increase in speed while shifting. Trouble accelerating

I have a 1.2L Corsa B automatic, and I'm having trouble accelerating. I can only get to 60 mph slowly on flat roads, and about 30-40 on a hill but 70-80 mph downhill. I can feel it hesitating when ...
Richard Madden's user avatar
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80 views

Replacing Nissan Qashqai 2L (2008) Bearing Kit - RE0F10A

I'm working on repairing the automatic transmission in a Nissan Qashqai 2008 (2L engine). Specifically, trying to replace the transmission bearing (RE0F10A) using this kit: https://www.ebay.com/itm/...
sa125's user avatar
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02 Taurus no acceleration, miss shifting, and no power

I have a 2002 Taurus 3.0 OHV. I'm getting no acceleration, miss shifting, and no power. I installed a new EGR control valve, differential pressure sensor, air filter, and coolant temperature sensor, ...
sos's user avatar
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Two problems, not sure if they're related. 2008 Hyundai Sonata RPM issue and starting problem

I have a 2008 Hyundai Sonata 2.4L 4-speed automatic with 175k miles that's been taken care of it's whole life. Just yesterday as I was accelerating it got to about 23-2500 RPMs and it slightly jerked ...
McKay Harward's user avatar
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2k views

Car starts and goes into gear but doesnt move

I have a 06 Lincoln ls now for a while the car wouldn't always accelerate initially hitting the gas but then it would and the car would jerk. Well other day I'm driving and it completely stopped ...
Samantha Tamburri's user avatar
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52 views

What could be causing my transmission to slip?

Three days ago when I was leaving the store, I started up 2006 Chevy Trailblazer Ls and it wouldn't reverse. I tried to move forward and that wouldn't work either. When I switched from drive or ...
Shawn Branch's user avatar
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699 views

No gears after serpentine belt replaced

After running car hot after serpentine belt broke, i replaced it. But now i dont have any gears! Reverse or drive or first or second? Could it be as simple as adding transmission fluid?
Bcreston Gipson's user avatar
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2011 Subaru Impreza (Automatic) Slipping when shifting uphill

My car has been having a hard time shifting when I accelerate a lot, mainly when I am driving uphill. It seems like it is slipping. There is also a burning smell from time to time I notice when I have ...
eyesofabadfish's user avatar
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408 views

2010 Volkswagen EOS stuck in Park

I have a 2010 Volkswagen EOS only summer driven. I parked it in November 2017 and went to use it last week after sitting for 6 months and the car will not shift out of park (automatic transmission). ...
Don Ariagno's user avatar
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117 views

Ford E250 slams into 2nd gear when hot

This is a 2000 Ford E250. The transmission slams into second gear when hot. I pulled the valve body, and the accumulator seals and piston appear to be good. The 1-2 valve also seems fine. Any ideas?...
Derek's user avatar
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Truck will not go when first starting

I have a 1994 Mazda B4000. In the past week the truck has gotten where it will not go from a stop, it simply revs the engine for around 30 seconds. The truck will then jerk and go. It will do this one ...
Michael's user avatar
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Toyota Yaris transmission problem

2008 Toyota Yaris have a weird problem, It have MMT semi-automatic transmission and last week its change to N itself suddenly. It does not change to 1 when i take to D mode. I wait a while then it ...
Ömür Bilgili's user avatar
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1k views

Delayed shift between reverse and drive with harsh engagement

Model: 2005 Volvo S40 2.4i / 5 speed automatic Mileage: 127k Miles / 3rd owner Transmission service history: not even changed ATF Other relevant services: replaced all engine/transmission mounts last ...
wenduowang's user avatar
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49 views

When I put to Drive my transmission goes to manual

KIA RIO 2013 model. I have the option to put it to "D" or +/- for manual. After starting the vehicle I shift from "P" to "D" and it won't move. When I step on the accelerator it goes to "1" even ...
Blue's user avatar
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How do I diagnose a blinking overdrive off light on a 2001 Ford F-150 with 4R70W transmission?

Today the "OFF" light on the transmission shifter starting blinking on my 2001 Ford F-150. It is the 4.6L with a 4R70W transmission. I pulled the codes but all I found was "Evap system inoperative" ...
Eric Urban's user avatar
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two conflicting mechanics opinions on what needs to be fixed, which one should I work with?

I drive a PT Cruiser with an automatic transmission, that only has about 75k miles on it. One day recently, I found that while I was stopped in traffic, my car wouldn't move while it was idling. For ...
schizoid04's user avatar
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35 views

Problems when I'm driving lack of power

1973 Chevy Monte Carlo 350 4bbl small block having problems with the car want to put in drive and take all driving it doesn't seem to want to go cast 40 miles an hour so I figured trying to change the ...
Macc Burnah's user avatar
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370 views

Weird AT gearbox behavior on Volvo S40

I've got a 2.4L N/A Volvo S40 2008 with a 5 speed AT transmission. I've noticed a weird behavior: under normal acceleration (e.g. from a stoplight) the transmission very quickly changes into 4th (at ...
Mark Segal's user avatar
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75 views

What is my cars problem?

I have a 2004 Nissan Maxima (168,000 miles). I stopped at a red light, but I pressed the gas to go again and there was a slight pause before my car began to gain speed and accelerate at a decent pace....
NGr's user avatar
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66 mustang automatic (3 speed) adding fluid after removing pan gasket

What I've done so far to the trans: removed pan replaced filter replaced pan gasket put it back together Issues: I have a bad torque converter (lurches then stalls when selecting gear) no idea if i ...
jacob's user avatar
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717 views

Gear of Car takes time to shift from 1st to 2nd gear

My car is 2005 Chevy Impala. While driving in automatic mode, I have to drive at 18 MPH for around 4-5 seconds to allow the gear to shift from first to second (or second to third gear, I am not sure ...
Sulav Timsina's user avatar
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322 views

2012 Dodge Grand Caravan clutch/transmission fail

car has 110,000 miles on the clock so out of warranty and today it won't drive. Car will shift into drive or reverse make a slight grinding noise and move a short distance then judder and stop. Engine ...
L. Walker's user avatar
1 vote
0 answers
210 views

Transmission not going into gear until the engine is accelerated to a very high rpm

The car will not move until I put the transmission in low range and accelerate to very high rpm. Please give a place to start looking for the problem.
randy's user avatar
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Honda Accord 2.0L i-VTEC Executive 4door - Automatic Transmission

I'm planning to buy a Honda Accord 2.0L i-VTEC. Can someone tell me which drive modes (if any) the automatic transmission has? Does it have a manual mode like the Nissan 350GT/Infiniti G35?
Puniek's user avatar
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Possible Bad Pressure Control Sol. in my 4l30e?

I rebuild the 4l30e in my Isuzu Trooper recently. The transmission shifted great and everything seemed ok. Time went on with the trooper as my daily and everything continued well. I passed 1k miles ...
CyrodiilSavior's user avatar
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206 views

Hard knocking noise with temporary loss of power in a 2002 Jeep Cherokee

I have been hearing a hard knocking noise for last couple of months off and on. But now since Monday my truck has been loosing power for like 30 seconds n then gains it back. The rpm goes up and then ...
Crischelle Langhorne's user avatar
1 vote
0 answers
468 views

Knocking sound coming from Torque Converter in my two speed

I daily my 63 Chevy Belair Wagon. Transmission is the original GM Two-speed Powerglide with (I believe) the original (13?)-inch torque converter. Here are my issues: Car lurches hard and knocks ...
T. Comella's user avatar
1 vote
0 answers
813 views

Is 'feeling' how gears down shift on automatic car indicate gearbox or clutch nearing it's end?

In my car (Cadillac CTS) gears used to shift seamlessly when not excessively accelerating, however recently I have noticed especially on lower gears when they are down shifting to actually 'feel' how ...
Matas Vaitkevicius's user avatar
1 vote
0 answers
151 views

What is causing my LEXUS RX 300 Automatic gearbox failure?

My Lexus RX 300 automatic gearbox died and I tried to replace it with several new gearboxes that I bought but it is not working. The car may move for 5 minutes then stop. May you help me? Is it my ...
Ludovic. ouoham's user avatar
1 vote
0 answers
50 views

My Van is Slipping Gears

Sometimes when in get into D in my 2005 Grand Caravan, my car will not go when I give it gas. Or, sometimes once I have put my van in D, I'm driving and suddenly my van slips out of D to N. If I give ...
Roslyn's user avatar
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1 vote
1 answer
189 views

Focus CMAX 2.0 Petrol 2006 replacement autogearbox - does it require to recode the vehicle?

I've to replace automatic gearbox on Focus CMAX 2.0 Petrol 2006. I just wanted to know does it also require re-programming the vehicle or any part of it.
A.Khan's user avatar
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617 views

Compatibility with automatic transmissions between MDMA and M4TA Honda CRV 98

I need to buy an automatic transmissions but only found MDMA automatic transmission for this reason I need to know the compatibility between MDMA and M4TA. Honda CRV 98 4X4 and mi car use M4TA Exist ...
Andres Brenes's user avatar
1 vote
1 answer
916 views

Is my car ac condenser clogged?

I hosed down the condenser in my car today to see if it improves my ac What I realized is that the water didn't dry on some certain spots like the rest of the condenser. The top and the sides were ...
charlie's user avatar
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1 answer
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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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0 answers
11 views

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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0 answers
9 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
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0 answers
12 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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0 answers
36 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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0 answers
40 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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0 answers
26 views

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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0 answers
26 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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0 answers
17 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
92 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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0 answers
98 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
28 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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0 votes
1 answer
974 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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