Questions tagged [torque-converter]
The torque-converter tag has no usage guidance.
33
questions
2
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2
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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 ...
0
votes
0
answers
34
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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 ...
- 11
5
votes
1
answer
517
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Why does the impeller of a torque converter sit behind the turbine?
i saw this picture of a Chrysler A-727 TorqueFlite and it shows that the impeller actually comes after the turbine. Why is it done like this? Doesn't it make more sense to put the impeller before the ...
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3
votes
1
answer
3k
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How does the ATF flow between torque converter and the transmission?
I was wondering how exactly the ATF flows between the torque converter and the Transmission, i couldnt see any hydraulic lines connecting the converter and the transmission, how exactly does the ATF ...
- 839
1
vote
1
answer
270
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Car vibrating when brake pressed in idle
Have a 2018 ford ecosport (3 cyl) automatic. Comes with a torque converter gearbox.
Issue:
Mild constant vibrations when brake is pressed and transmission is in D. The vibration is lower in when in R ...
- 11
1
vote
1
answer
537
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Can low or leaking transmission fluid cause a torque converter to go bad?
Backstory: took my vehicle (2017 Tahoe) in for basic scheduled maintenance - no issues. Had the transmission flushed at 97k because we were advised to do it before mileage hit 100k. Within a week ...
- 11
1
vote
1
answer
780
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700R4 Lockup Torque Converter? Lockup Solenoid? How do I do it? Kit Only?
I used to have a lockup TC in my 700R4, I recently needed it rebuilt & when it was placed back into vehicle they used a non-lockup converter. Now it seems to run hot, especially at higher speeds &...
1
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2
answers
2k
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Torque rating of 8F35 and 8F57 transmissions
What is the maximum torque those Ford transmissions can handle?
Bonus question: new 7-speed auto in a Ford Focus ST mk4 is based on one of those two with a 2nd gear removed. Does it keep the torque ...
1
vote
1
answer
774
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Engine braking in an automatic: Does it save fuel?
This is a question more to satiate my curiosity than something I want to apply in practice. It's also my first question here, so apologies in advance if I'm doing anything wrong.
I've recently ...
- 11
0
votes
1
answer
509
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I just changed my transmission in my 2008 Altima and im having codes pop up
I just changed my transmission in my 2008 Altima and these are the codes that's coming up p1777, p0740, p0745, p0778, p1740, and p0125.
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vote
1
answer
215
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2013 Hyundai Sonata
Got a 2013 Hyundai Sonata limited, car stalls when you put it in drive or reverse. Engine runs fine, but soon as you put the car in drive, it stalls. Dealer is telling me the torque converter has ...
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0
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196
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Went in for a transmission repair, had two torque converts fail since, Jeep Liberty
I've been having some issues with a local transmission shop. Basically, I had my transmission rebuilt and it has failed on me twice since. My vehicle is a 2006 Jeep Liberty CRD. My model has the ...
- 111
2
votes
0
answers
359
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Transmission or torque converter issue?
Long story short, car is a BMW 530d automatic from 2012 with the ZF 8 HP transmission. The problem is, after the timing chain was replaced, 2 years ago (and transmission pullet out to do that), the ...
- 143
2
votes
3
answers
651
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Does clutch and gearbox order matter?
Does it matter if engine power goes through the gearbox before the clutch, or through the clutch before the gearbox?
I'm not sure if there has to be a specific order of clutch & gearbox, or if it'...
- 303
2
votes
1
answer
5k
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Do any torque converters disengage at idle?
Do any (or all?) torque converters disengage completely from the engine while the engine is idling and the vehicle is stopped, and/or the transmission is in Park/Neutral?
If a torque converter does ...
- 1,199
2
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0
answers
156
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Jeep Commander all wheel drive automatic transmission no Park
I have an '07 Jeep Commander (all wheel drive). Coming home, I went across railroad tracks and lost all my gears. No park, no gears. The transmission fluid is full.
My mechanic says it's a bad ...
- 111
1
vote
1
answer
2k
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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 ...
- 143
3
votes
3
answers
26k
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Which is better lockup or non lockup converter?
So which is better a lockup converter or a non lockup. It's being put in a Chevy 4x4 with a 700R transmission, it's a daily driver and used for towing?
- 31
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vote
4
answers
10k
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ATF Warmup (On a cold day)
it’s cold outside now and I was just wondering about my automatic transmission. If you brake fully and apply throttle but the car isn’t moving heat energy is added to the atf right? Would it be ...
- 433
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1
answer
181
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Does One wheelspinning in mud damage my car?
if one of wheels trap in mud or lifting up on Jack so rotate idle, and another wheel stop to rotate(because differential), is this situation damage torque converter or Automatic transmission?? or ...
- 315
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vote
0
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77
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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 ...
- 11
1
vote
3
answers
4k
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How to disable the Torque Converter Clutch Solenoid on a 2001 F-150 with the 4R70W transmission
In another post, I mentioned that when I am trying to cruise I get a massive stuttering from my drivetrain. My only conclusion is my vehicle's torque converter clutch no longer can actually lockup. I'...
- 1,286
3
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0
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Drivetrain stuttering on 2001 F-150 automatic
I have a 2001 F-150 with what I believe to be the 4R70W transmission. It's a 4 speed automatic with the 4.6L engine.
The past two times I have driven it I have gotten a massive shaking and stuttering ...
- 1,286
1
vote
0
answers
476
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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 ...
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5
votes
2
answers
16k
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Shifting with torque converter locked?
I have a two questions related to the torque converter and shifting.
First, is it possible to lock the torque converter on first gear if I press the gas pedal hard?
Second, is shifting while the ...
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8
votes
1
answer
1k
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How does the Koenigsegg Regera work?
The Koenigsegg Regera is Koenigsegg's newest car, and is a hybrid. However, unlike other "hypercars," like the Holy Trinity, the Koenigsegg doesn't have a gearbox. I'm assuming that it uses some sum ...
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7
votes
1
answer
25k
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How does a lock-up torque converter work, exactly?
I am familiar with the general workings of a torque converter. The engine-side blade pushes the fluid, the fluid spins the transmission-side blade. What I am all fuzzy about is, for lock-up torque ...
- 12.2k
9
votes
0
answers
545
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Torque convertor shudder? [closed]
I drive a 2011 GMC Sierra 2500HD ex-cab 2wheel drive with a 6.0 gas engine and a six speed 6L90 automatic transmission. I have started noticing what I believe is called "shudder" from my tranny under ...
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6
votes
2
answers
288
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Is my 1999 blazer having transmission problems?
I have a '99 Chevy Blazer. It never wants to get moving right away. It takes 30 seconds to a minute before I can get fully going. It also shakes when I am at a red light or stopped.
I noticed today ...
8
votes
1
answer
619
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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 ...
- 15.7k
3
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0
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265
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Vibrations and Torque Converter Failure
I've read in various places that one cause of vibrations when shifting from Park to Drive in an ATX is impending torque converter failure. Another person asked about the different ways in which a ...
- 15.7k
8
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2
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5k
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How can torque converters fail?
In what ways can a torque converter stop working properly?
Are there any symptoms that indicate failure, or simple tests one could do to determine a malfunctioning TC?
- 39.2k
6
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1
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How does a torque converter work?
I am still in the learning process and I am okay with torque converter but there are some things I can't understand very well:
Why does the impeller and turbine have vanes in opposite directions?
...
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