Questions tagged [transmission]

These are questions regarding transmissions in general (either manual, automatic or CVT transaxles and their component parts). This tag is not for questions specific to any type of transmission. Instead, use [manual-transmission], [automatic-transmission], or [cvt-transmission] INSTEAD. Use this tag if the question is relevant to multiple types of transmissions.

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31 views

Autimatic transmission not accelerating when in drive, but does when in park

My Nissan altima 2007 doesn't accelerate when in drive but does accelerate when in park,will changing the full gear box solve this problem.I had service the gear, change the oil but still same problem
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64 views

Transmission problem (I am guessing)

Drove my Honda Pilot 10 hours to escape COVID land. Then left it parked for 3 weeks. Now, I can move the transmission from Park to Reverse or Drive, but the car moves forward as if the parking brake ...
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35 views

Does engine rev due to speed by downshifting increase fuel supply? [closed]

Does downshift rev works like normal throttle rev in which engine is fed more fuel?
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1answer
55 views

Problems with my Isuzu

I'm from the Philippines and we have a car from the brand ISUZU and the model is named "Crosswind" Ever since we got it 2nd hand, it already had its minimal problems like slow acceleration ...
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21 views

What is the difference between 12x50 and 18x75 differential gear sets?

The gear ratio of both 12x50 and 18x75 is 4.166666666666667 which is the same. But why don't car manufacturers use only one of them while the ratio is exactly the same? My only guess is that when the ...
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2answers
55 views

Excessive vibration after new tire install

I took my 2003 Saturn Vue V6 AWD in and had two new rear tires installed. Immediately after leaving, once I hit 40 MPH I had excessive violent shaking in the steering wheel and whole car. I went back ...
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1answer
39 views

Why does my 1997 Chevy Suburban drop out/not shift after 2nd gear?

On a trip today we were driving down the Interstate when all of the sudden the RPMs went way up and we lost all power. We managed to get off the road, and some experiments, at 25MPH it would ...
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1answer
113 views

Cause of gearbox bearing issue?

I took my Fiat Punto Evo 1.2 2011 to the garage today as it had started making a noise recently and have been quoted £630 for a reconditioned gear box as there is an issue with the gearbox bearings. ...
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1answer
256 views

Can a faulty throw out shaft bearing cause the input shaft of transmission to break?

My car's throw out bearing is faulty and sometimes there's knock noise coming out from my clutch. I was wondering, could it affect input shaft of transmission?
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36 views

How bad is this gear Box Oil Leak?

How bad is this gearbox oil leak? This is a newly rebuilt Isuzu giga truck and it is odd to have issues like this. My mechanic told me it is not an urgent maintenance.
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1answer
97 views

Poor Uphill acceleration and skipping gears

I have a Honda CBF125cc 2010 model. I have recently tightened the chain and changed the sprockets. In the last couple of weeks my bike seems to skip 4th gear. I can physically move the gear shifter ...
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1answer
585 views

What is this rattling noise when car put in reverse or drive gear? (2014 Honda CR-V)

I recently bought a used 2014 Honda CR-V. I noticed in my garage today, that there is a strange rattling noise right when I put the car in reverse or drive gear. It is much more pronounced when the ...
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2answers
564 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 ...
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1answer
11k views

Should I change transmission fluid if it's black?

I bought a vehicle couple of weeks ago. I checked the transmission fluid today, and noticed it was black. Should I be worried and immediately go change it? Part of me wants to get it changed since I ...
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1answer
974 views

Can 2 gearboxes for the same engine but different codes be compatible?

I need to change my gearbox. I own a VW Golf 6 from 2009, 1.4 TSI, 122 HP, engine code CAXA. The gearbox code is LHY. I found at a scrap yard a gearbox from an identical car (even the same engine ...
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22 views

Lots of resistance on shifter when engaging any gear from a stop; not an issue if clutch pedal is depressed for a few seconds

2019 Mazda MX-5 M/T, 16k miles, original M/T fluid. TL;DR (I originally wrote everything below the TL;DR and then realized how long this was...): When not moving and depressing the clutch, all gears ...
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21 views

I have a 2000 ford contour 2.0 runs fine but will not get any faster then 40 mph no matter how much throttle I give,

Motor runs fine transmission shits fine has full rpm range all gears but at 40 it will not run any faster no matter how much throttle you give
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1answer
45 views

2007 Toyota Prius multiple issues

Ok I have a 07' Prius. The red triangle comes on & the check engine light. It runs but when I hit the gas it bogs down and puts than gets going. I'm thinking transmission but don't know how to ...
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1answer
32 views

2012 jeep patriot 2.0L- Gears slipping but only after stopping during long drives

I have a jeep patriot 2012 which uses a CVT transmission. recently I have been going on a lot of long road trips. I noticed that when I first start to drive the car, there is no gears slipping. Even ...
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1answer
23 views

Transmission fluid for 2012 rav4 4 cyl

I am looking for transmission fluid for a 2012 rav4 4cyl that is sold in Canada. I have come across this Castrol Transmax fluid that is sold in Canadian Tire. It says (zoom in on the picture) that ...
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1answer
57 views

Delay engagement of the transmission

I use a Nissan pathfinder 2000. Recently it has delay engagement of the transmission from neutral to drive and will not move unless it is changed to gear 1, then it moves perfectly. Then I manually ...
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19 views

2020 Nissan Sentra SR on acceleration, loses power and revs high

I have a leased 2020 Nissan Sentra SR automatic brand new and 4 months later 8000 kms I was merging on the highway. I couldn't accelerate although I had the gas pedal all the way down to the floor - ...
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1answer
46 views

4L60E Reverse and 1st Only after Transgo HD2 Kit

I have a 1999 4L60E from a 1999 Suburban that has been rebuilt twice successfully, and then had a TransGo 4L60E-HD2 shift kit installed that ultimately led to where it's at now with it's reverse and ...
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1answer
931 views

What can cause knocking sound when pressing and releasing gas pedal?

I hear a knocking sound whenever I pres the gas pedal and accelerate fast, or when I quickly take my foot off the gas. I hear it at low speeds 25-40mph. Just replaced the CV axles, put on new tires, ...
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1answer
37 views

Why does my gear only engage downhill

I'm having a mechanical problem with my 250cc motorcycle. It has 5-gears, and all work smoothly but the 5th gear. the 5th gear will only work/engage when I shift to it coming downhill on a roadway, ...
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1answer
71 views

Cause & Effect of over reving

What would be the effect on transmission shift on hard acceleration if all solenoids weren’t properly torqued in U660e transmission ?
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1answer
561 views

2007 Honda Civic won't move in any gear. Loud scratching noise when put in “park”

Yesterday I changed the left CV-Joint of my 2007 Honda Civic. After the change, I drove the car for about 2km, and when I tried to park, I heard a loud scratching noise. I put off the engine and ...
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1answer
60 views

Clio 2 engine support screw broken

After a hard gear shift, a big boom sound was heard and I was unable to accelerate without having the engaged gear to fall. It turned out that screw linking the rear bottom silent bloc to the engine ...
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1answer
65 views

Vehicle is stationary but LIVE DATA from ECU says Vehicle Speed is 255 km/h ,throwing codes P0717 & P0793 and no reversing

I'm repairing Toyota Harrier ACU# (Automatic transmission) with no reversing problem. When gear is shifted to R she throws codes P0717 (input speed sensor A no signal) and P0793 (Intermediate shaft ...
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1answer
1k 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 ...
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2answers
49 views

Is ATF friction modifier acceptable to meet my OEM specs

I have a 2014 Kia Rio with a 6 speed auto. It asks for SP-IV specification transmission fluid. The transmission shop I am considering for a fluid change service, said that they use an all purpose ...
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1answer
181 views

My Geely car transmission signal blinking in dashboard

I have Geely Emgrand EC7 2013 CVT model. From past three months crackling sound in transmission when i am slow the car like 30,20 speed..yesterday suddenly all transmission signal P D N blinking and ...
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1answer
42 views

Putting car into any gear for the first try isn't smooth

2013 Ford Focus 1.6 Diesel, manual - when I press the clutch pedal and put it into first gear (it's doing the same thing in all gears), it's not that smooth. However, if I put it into neutral and put ...
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1answer
3k views

Does it make sense to clean pressure solenoid when changing transmission fluid?

I was just watching "Ratches And Wrenches" where he had a truck which would not shift. He did a transmission fluid and filter change and then removed the solenoid and replaced with a new one. But at ...
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1answer
60 views

Nissan Altima 2010 Transmission

Was a given a 2010 Nissan Altima by my mom's. The question is I feel like sometimes the transmission is a little jumpy and I know she has never changed the transmission fluid.(recommended every 30k). ...
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28 views

2010 Dodge Charger Base Model won't go over 25mph+ (P0370)

Having some troubles with my vehicle. It will not go over 25+mph and it is very choppy. Bought a code reader and it comes back with P0370. 2010 Dodge Charger base model
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2answers
71 views

Motorbike: Least worst option for stuck front sprocket bolt?

Had a particularly stubborn front sprocket nut the other day, wouldn't budge with the rear brake - breaker bar combination. Tried giving it 5min of blowtorch heat, didn't help. Then, even with my pal ...
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1answer
287 views

Does putting your car in park during extended stops during trips prevent transmission from overheating?

We've all been there, waiting on a train at a railroad crossing, or stuck in a traffic jam that doesn't appear to be going anywhere for awhile. Well transmissions are designed to my understanding for ...
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1answer
65 views

What is this part called? (Rubber bolt/cap on top side of automatic transmission)

Picture: From other angles: The photos probably say it all, but for reference, I'll describe the situation: While changing the radiator of my 2004 Dodge Neon (because its internal transmission ...
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1answer
51 views

Odd solenoid control problem with my 05 Sebring

I have had a problem that had stumped me consistently. I have a 2005 sebring that has been intermittently going into limp mode. I checked the code and it told me the tranny control module power relay ...
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1answer
46 views

Honda rev-limited at 4k RPM, automatic transmission won't shift into 5th gear, no CEL

I have a 2010 Honda Accord EX-L, with the 3.5L V-6 engine. 230k miles, all highway, so I'm still breaking her in. At the beginning of the Corona shutdown, I replaced the timing belt and water pump. ...
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1answer
131 views

Correct placement of an aftermarket transmission cooler

I previously installed an aftermarket transmission cooler in a 2006 GMC Envoy (4.2, 4L60E). I installed it "after" the factory oil-water heat exchanger built into the radiator (that is, the ...
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2answers
435 views

Golf MK7 clunk/klik while engaging or disengaging the clutch

I have a manual transmission Golf 7 TSI from 2015 and when shifting in the lower gears(1->2, 2->3, 3->4) there is an audible clunk when engaging or disengaging the clutch. This however only happens ...
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2answers
253 views

Loud grinding sound from gearbox

We've replaced the old clutch on our Toyota Land cruiser prado 2002 to a new one and when we put in gear there's a very loud noise, it sounds like a chain spinning all around coming from the gearbox. ...
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1answer
5k views

How Can I Determine How Much Transmission Fluid To Add to My Truck When The Dipstick doesn't seem to be correct

I recently bought a 2001 F-150. The first time I checked the transmission fluid level, it looked like it was overfilled but the filler tube mount had rusted off and I figured it wasn't accurate. Last ...
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2answers
5k views

Scania 4 series Opticruise gearbox problems

I am having issues with the Scanias. I have a 4 series Bus (K124) Opticruise. These are 8 speed 4 Low / 4 High Range. We are having an intermittent issue with banging into gear. This will only happen ...
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3answers
728 views

What problems will I have if I use a rusted input shaft on a transmission?

I have an old (25 years) transmission from a BMW E36 which I want to use. The transmission must have sat outdoors for a while, because there was white scale on the outside and inside of the bell ...
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5answers
9k views

Should you change all of your transmission fluid?

I took my Lexus RX 300 to the shop, to change the transmission fluid. While talking to the tech, he said he sucked out half the fluid and left the other old half there. Is this proper? Shouldn't they ...
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0answers
19 views

Chevy 4.3 V6 Flywheel Which one?

I am looking at the flywheels for Chevy v6 4.3 and see one is Goodwrench version {?} and one is NON Goodwretch version. I have a 1991 one-piece rear main seal. WHICh one do I need? The engine is going ...
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9answers
56k views

Durability of automatic transmission boxes versus durability of manual transmission boxes? Their lifetimes?

My friend is against cars with automatic transmission because he thinks that they break easily and that their repairing cost a lot. He thinks that it is impossible to maintain an automatic ...

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