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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1answer
78 views

Shifting while in neutral

I am new to motorcycles and I just bought a 2010 Triumph Thruxton 900. I am having difficulty cycling through all the gears in neutral. I haven’t taken it to higher gears on the road yet but should I ...
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1answer
414 views

Is the crankshaft connected directly to the wheels?

If my understanding is correct, a car (in simple terms) has; The crankshaft, then; The clutch and gearbox, then; The propshaft, then; The differential, then; The driveshafts and the wheels. ...
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686 views

2011 Volkswagen Routan Transmission issues

2011 Volkswagen Routan SE Van (daily driver) gave a transmission code P0841: transmission fluid pressure sensor switch A. We had a friend change the engine oil and the ATF. They also changed the ...
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1answer
333 views

Does tiptronic transmission always use clutches?

Does tiptronic transmission always use clutches or dual cluctch packs? Or are they also built on CVT or other automatic transmission technologies?
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2answers
35 views

Mods & Liability Insurance [closed]

I want to do a pretty major transmission/drivetrain swap on my car, but I have a few questions about insurance. I've been told that if I got into an accident my insurance could refuse to pay for the ...
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1answer
6k views

No pressure in clutch after bleeding the system

I have a 1992 GMC C2500. When I got it there was no pressure at all in the clutch. I bleed it from the bleed valve for about 20 minutes to make sure there was no more air bubbles coming out. After all ...
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3answers
653 views

Why are high performance electric cars promoted as requiring no gearbox?

Why are high performance electric cars promoted as requiring no gearbox? Moreover, why don't they have gearboxes ("a gearbox" in this context implies a gearbox with multiple selectable gear ratios)? ...
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1answer
67 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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2answers
81 views

Repeated uphill starts on rocky track in second or third gear - damage to transmission?

I was driving on a steep uphill offroad rocky track in a manual car with a rather weak engine, with my family in the back. I stopped at one point to check directions. I'm not used to manual cars and ...
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1answer
3k views

How to tell if cv axle is in all the way?

Just replaced axle on a passenger side 98 Honda Civic. This was my first time doing this job without any supervision so I’m a little unsure if the axle is all the way into the transmission. I did ...
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2answers
187 views

Should I repair my car immediately or wait for it to totally die?

I have a 2013 mazda 3 with ~90k miles on it. It's having some transmission issues (slow shift from certain gears, intermittent whining, hard shifts). It's been doing the slow shifts for like 50k miles,...
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1answer
1k views

Gear Won't Change (very stiff) When Engine Cold

I bought a used 2000 Ford Transit which won't engage into any gear (very stiffly so) when the engine is still cold and just started running. The previous owner advised that he would start it in the ...
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1answer
3k views

Should gear shift center itself while in neutral?

I have a 2001 Mitsubishi Eclipse, 5 speed manual. Transmission works great, but one thing I’ve noticed is that when in neutral, the gear shift seems to stick to the left or right. Sometimes it might “...
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1answer
293 views

Is 4000 RPM a normal rpm for a diesel school bus at 55 mph?

I have a Thomas 1991 school bus (36K gvwr) with a CAT 3116 engine and an Allison MT 643 transmission. I purchased it quite recently and when driving it on the highway, the engine RPMs are at 4000 ...
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1answer
161 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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0answers
41 views

Can you use a flex (spider) coupler as a dog clutch in a motorbike/atv/go kart/lawn mower like setting?

My question is simple: I want to make a dog clutch system for a wakeboarding cable system and was wondering if a flex (spider) coupler could used? The power, velocity, torque is similar to a go kart /...
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0answers
49 views

Automatic Tranmission Whine when in Gear

In the last month, my 1.3L 2001 Toyota Yaris/ Echo automatic car has developed this dragging whining noise when the car is in gear. I have made a video of it https://www.youtube.com/watch?v=...
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1answer
73 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
68 views

Backup lights, monitor and alarm sometimes don't work when backing up

When I switch the stick to R on my automatic gear, the backup lights, monitor and alarm sometimes don't work, sometimes do. It feels as if it's random when there's current in the wires. When they ...
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1answer
236 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
82 views

not fully shift gear- position between second and neutral

i am beginner driver, sometimes when i shift into second gear too fast ,i didn't push stick it all the way and after release the clutch you could hear the scratch sound ,stick vibration and after few ...
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1answer
445 views

Could the OBD2 connector be used to switch gears?

What the title says, could I use an OBD2 code to control gear shifts in an automatic car? For example send an OBD2 code via a microcomputer like the Raspberry Pi. The car in question is a 2008 BMW e60 ...
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0answers
112 views

Fluctuating revs

I have a 2007 Audi s5 4.2 v8. When the engine is cold it drives faultless but as the engine gets warm is where the niggles start showing. When pulling away the revs fluctuate up and down quite rapidly....
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0answers
9 views

Ford 2006 xlt 3.0 transmission slips out

Any idea of the problem. SUV warms up and I drive 3 blocks and I loose drive and reverse. I let it sit for 30 minutes and I can drive again for 3 blocks and then loose drive and reverse. I stopped ...
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0answers
29 views

Clunk in back end

I'm hearing a clunk and bang from the back of my car. The symptoms: 2010 RAV4, 6 cyl, AWD, 75kmiles. Clunk from rear sometimes when rounding sharp corners at low speed. Clunk from rear sometimes when ...
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1answer
217 views

Exhaust smell after transmission replacement

Backstory: I took my car in for a transmission fluid change. Current problem: 4 months later I smell a burning/exhaust smell when I drive my car. It’s okay for extremely short distances, but the more ...
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0answers
117 views

What transmission can I join to a 2JZ GTE to support 600 bhp in a Lexus IS300?

I've been researching various transmissions that are popular to connect to a built 2JZ GTE engine. It looks like a popular choice is a Magna PT V160 6-speed manual. However, I'd like to know if there ...
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0answers
46 views

Exhaust in the Coolant 2000 Honda Civic EX

I know the 'go to' answer for this is the head gasket. But: the mechanic just did an engine overhaul and same problem persists. Allow me to explain. In November 2018 mechanic did work and replaced ...
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0answers
35 views

How do you really know if you need a rebuit transmission?

My 1998 Isuzu Trooper sounds funny at 58 MPH hours and sometimes it slips out of gear and jerks back in. I've taken it to several mechanics and they say it's fine... That's good but I wont a smooth ...
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1answer
52 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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0answers
78 views

Random RPM boost

For the last week I've been having an issue with my RPM boosting highly for no reason. I drive a Peugeot 307 1.6 HDI S 90BHP. Whenever I shift from 2nd to 3rd and start gassing it up a bit moving up ...
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0answers
27 views

Why isn’t my transmission working after replacing the engine

I just replaced the engine on my 2014 Hyundai Sonata and now the transmission won’t get into any gear at all. I know for sure the transmission was good before the engine blew.
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0answers
170 views

Car speed not more then 100 km/h

I have a 2004 Volvo XC70. Normally if I travel at 110 km/h my engine speed is at 2400 RPM. Now I have to press accelerator up tо 3000 RPM, but max speed is 100 km/h and won't go higher. This problem ...
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0answers
206 views

2005 4x4 chevy avalanche 1500 While driving Rpms increase but speed does not

So, on my 05 avalanche, i recently was driving and all of a sudden the Transmission HOT. Message came up on the display, As soon as it did it started sounding funny, revving high rpms, not wanting to ...
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2answers
284 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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0answers
116 views

2010 Jetta Stuck in park

Shifter won't move. I checked all the fuses. Brake lights work. No foot on brake indicator on dash. I don't know what it is. Have no problem pushing the manual release under the shifter. Check engine ...
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0answers
385 views

2013 Ford Transit Connect 2.0L engine R/R Transmission estimated Labor times?

What website can I utilize to find the estimated labor hours for the removal and replacement of a transmission, including all fluids for a 2013 Ford Transit Connect with a 2.0L engine? Or does anyone ...
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1answer
147 views

Can Transmission get damaged While the Car is in Neutral While parking Brake is on?

Can transmission get damaged while the car is in neutral while the brake is ON ?? Does towing damage the E-Brake ? Let's say the towing distance is 20 Meters?
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1answer
19 views

1993 Triton Diesel 4x4

Wondering if there was a common fix such as a gearbox or diff swap to bring the cruising revs down on a 1993 diesel Triton. currently revs in 3000 rpm range at 100k/hr hoping to bring down about 500 ...
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1answer
23 views

My car is a May 2017 Tata Bolt

At 20,000 Kls my car had a massive gear box failure when taking off in first gear. because no spares were available it took ten weeks to repair. Three month later, three days before the 30,000 Kls ...
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1answer
120 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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0answers
28 views

transmission, clutch, tcm

Please help! I'm having this same issue on my Ford Focus 2013 SE. I drove 4 hours out to snowboard and 3 minutes away from the resort my car slows down and I rev the engine and the RPMs shoot up but ...
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2answers
184 views

how much atf oil is needed on a 2001 vw jetta when serviced?

Some people say to put 5 qts. of ATF when doing the filter change on my jetta 2001, some say to use only 4 qts. what is the correct amount needed?
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0answers
153 views

Heavy grinding noise when driving off in first gear

I have a Transit 07 plate 2.2. Whenever I drive off in first gear the noise seems like it’s coming from the driver side but I have replaced everything from wheel bearing to driveshaft ... what else ...
3
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1answer
3k views

How to disassemble the ZF S6-53 transmission (BMW Jaguar Land Rover etc)

I need to remove the front housing of this transmission so I can machine the bell housing flange off and weld a new one on. ZF are very reluctantly give out service or workshop manuals. I have ...
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0answers
37 views

98 Honda Accord loss of power

A couple times now in my 1998 Honda Accord I have been driving down the highway when all of a sudden my RPMs drop to idle rates and pressing the gas pedal doesn't rev the engine. The first time this ...
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1answer
34 views

Bmw 318i msport 2007

I have a 3 series 318i 2ltr 2007 m sport and I can not get my clutch to release. The cdv was leaking. We changed the clutch master cylinder and slave cylinder and bled the system for air. I can not ...
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0answers
288 views

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 ...
13
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9answers
12k views

How to add a 7th gear to a car to enhance fuel economy?

Let's say there's a 6-Gear manual transmission car, whose 6th gear equals 2000 rpm at 100 km/h (~60 mph). How can one theoretically add a 7th gear that can maintain the same speed at 1400 rpm in ...
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1answer
512 views

repair /service on encoder chips in smart car clutch actuator motor

I am a DIYer trying to fix the clutch actuator motor on my Smart fortwo. The actuator has 3 components A. the motor B.the mechanical arm C. the encoder. A & B are good. component C is as shown....

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