These are questions regarding either manual or automatic gearboxes and their component parts.

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4
votes
2answers
41 views

Motorcycle transmission occasionally pops out of gear

I'm having an issue where the transmission will occasionally downshift by itself during a fast acceleration. I have a 2005 Suzuki Vstrom 650 and it's been a great bike so far. At pretty high revs, ...
4
votes
2answers
1k views

What determines when an automatic transmission shifts?

I'm working on developing an automatic bicycle (mostly microcontroller based) and I'd presume I'd be shifting in a similar way to a car. So my question is, what factors does the transmission take into ...
4
votes
2answers
218 views

Can I use a CNC machine or waterjet to make an adapter plate to adapt a 5 speed transmission to a rare, obsolete engine?

I am the sad, proud owner of a Nissan SD33T (Diesel), mated to a 4 speed T-19. The power this engine outputs (101HP, 160#/TQ stock) means it struggles on the highway, and I don't want to sacrifice my ...
4
votes
2answers
2k views

Do I need computer reprogramming when transmission is replaced?

Honda Odyssey 2003: I'm replacing a transmission, and a local mechanic will help me to swap it in my garage. I've been told at a local shop, that in order to install remanufactured transmission ...
4
votes
2answers
4k views

Host of small performance problems in 2006 Hyundai Elantra

I bought a used 2006 Hyundai Elantra (Automatic) back in early 2011. At the time, I was needed to have a car quick, and it seemed like a good deal, but the longer that I've owned it, the more problems ...
4
votes
1answer
118 views

Transmission stuck in neutral

I just recently bought a 1968 Oldsmobile 442 with a brand new transmission put in it. The guy I bought it from said there’s about 1200 miles on it but a few weeks after I bought the car I got in it to ...
4
votes
1answer
245 views

What is this part and how do I remove it?

I am trying to replace my motorbike clutch friction plates, but cannot remove the basket around the plates ( I think that's what people mean when the say 'basket' - the cover over the plates that ...
4
votes
2answers
714 views

Could a fuse be responsible for my VW Jetta not shifting while in drive?

Issue with my VW Jetta (2001) Automatic transmission, gasoline engine My tail lights were out because of a missing fuse. So in the dark I looked to find a good one to replace it with (of the ones ...
4
votes
2answers
157 views

vanagon lurches forward, won't accelerate past 20mph or so

I have a manual 1982 diesel VW Vanagon with a 1996 Passat TDI engine in it. This morning (low 40s temp), accelerating up a hill, heard a hissing sound in left rear. Check tires, no problems. Able ...
4
votes
3answers
465 views

Ford TSB covered under warranty?

I have a 2008 Mustang GT which seems to have the exact issue that is described by Ford TSB 09-09-06. TSB can be viewed here : http://www.stangpit.com/wp-content/images/docs/s197-tsb/09-09-06.pdf ...
3
votes
3answers
595 views

Engine spikes to 5000 rpm when pressing on gas pedal or going uphill

I'm having an issue with my 2001 Solara, and I would like to check out a few things myself before I have a mechanic spend lots of time diagnosing the problem. When the engine is under load -- I press ...
3
votes
5answers
2k 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 ...
3
votes
2answers
486 views

Difference between “dumping the clutch” and N->D in an auto?

What's the difference between dumping the clutch, and going from N->D at high RPMs with an automatic transmission? Will this cause any damage to the vehicle?
3
votes
1answer
121 views

Is my transmission about to go?

I drive a 16 year old Subaru Legacy automatic which still has its original transmission and has never given me a moment's trouble in 16 years. Today while pulling out of a parking spot, I suddenly ...
3
votes
1answer
554 views

Which is it; transmission,clutch, or slave cylinder

I have a problem with my 92 Geo Prizm 5 speed manual transmission. I could use some advice from someone knowledgeable about manual transmissions. Here are the symptoms: DURING cranking, in ...
3
votes
3answers
4k views

turning right causing small vibration and noise

My 2004 Ford Focus makes small grinding and vibrating noises when turning to the right. The problem was much more severe earlier this month. I took it to the shop and had them get me new tires and an ...
3
votes
1answer
202 views

How to add transmission fluid with no dipstick?

I have a 2003 chevy cavalier, and just replaced the radiator due to a transmission fluid leak into the antifreeze. I don't know how much fluid was lost because the transmission was designed without a ...
3
votes
1answer
499 views

Better to repair a CVT or replace with a used one?

Our 2003 Honda Civic Hybrid transmission died. Honda gave us an estimate of $4500 to replace the transmission. We took it to a different mechanic who suggested that instead of replacing the whole ...
3
votes
2answers
182 views

Reverse Gear Doesn't Work Anymore on an Automatic

I've been having troubles with my automatic transmission for sometime now mainly it's lost it's smoothness and has been slipping first thing in the morning. I've practically worked on every other ...
3
votes
1answer
74 views

Replacing 3rd gear synchro on a Tacoma

I have a 4WD 2007 Tacoma V6 manual with 6 speeds. This model has a notorious reoccurring problem with its 3rd gear, which is due to the synchro going bad on that gear, as per many online ...
3
votes
1answer
48 views

Transmission not shifting from park

I own a Nissan Maxima 2000. Over the past 2 or 3 days I am observing a strange problem with my transmission. Once I start the vehicle, I place my foot on the brake and try to engage drive, the shift ...
3
votes
2answers
2k views

Car I test drove had a high clutch engagement point; why?

I test drove a 2002 BMW 325xi with 80,000 miles on it the other day and while it didn't have any major issues cosmetically or mechanically from what I could see, there was something strange about the ...
3
votes
1answer
99 views

AWD truck doesn't shift smoothly. I was advised to not change the transmission fluid

AWD Mercury Mountaineer. 1997 Automatic transmission. 8 cylinder 5.0L 150k miles. fairly good shape. Pretty awesome truck. From 1st to 2nd gear, the transmission shifts with a light clunk. Also, at ...
3
votes
3answers
3k views

Alternative reverse light switch

I am about to take me ute to get a "safety" certificate so that I can get it registered (QLD, Australia) and I have one issue left that is still a possible problem. The switch that operates the ...
3
votes
1answer
37 views

Building a custom car

I'm curious, is it possible (and how hard would it be) to build a custom car with an engine from a different brand than the transmission? For example, I'd get an old V12 Mercedes engine (with two ...
3
votes
1answer
30 views

After long journeys, gear slips in 5th, but not into neutral

This is a follow up to another question I asked. I've managed to get some video of it happening this time. It started happening after travelling for about 2 hours. I was experiencing heavy traffic. ...
3
votes
1answer
48 views

Grinding when shifting into 1st from a stop

My car (2013 Ford Focus, 12k miles, 5 speed manual) suddenly started to grind when shifting into 1st from a stop about halfway through my commute home. I realized that if I depress the clutch for long ...
3
votes
1answer
59 views

Surely I'm refilling my transmission fluid incorrectly

My car ('96 Ford Taurus) developed a transmission fluid leak and lost an unknown amount of fluid. I fixed the leak and began replacing transmission fluid but this has proved to be extremely tedious. ...
3
votes
1answer
65 views

91 GMC accelerating problems

I have a 91 GMC 3500 dually 7.4. I recently had my transmission rebuilt and it ran fine for 6 to 7 months. I give it gas and it will go up to 40-45 mph and will stop accelerating like it goes in ...
3
votes
2answers
2k views

How can I reset the adaptive transmission on my Pontiac G6?

My Pontiac has started shifting hard and sometimes taking a loooong time to find the gear. My first suspicion is that it has MDS (Multiple Driver Syndrome), so I'd like to try the cheapest option of ...
3
votes
3answers
3k views

Gear Linkage repairs for VW Polo Mk3 (1997)

I had a problem changing gears on my Polo (1997, 1.4 petrol, 3 door, UK). It was hard to find the gears especially 1st and 2nd, and reverse would grind, and it was worse when the car was warmed up ...
3
votes
1answer
52 views

Is it possible to test tranny when off vehicle?

I am preparing to do my first transmission (manual) rebuild job. I was just curious if it is possible to test whether the job has been done right while the tranny is off vehicle while simulation ...
3
votes
1answer
4k views

How does a AMT (Automated Manual Transmission) work?

I know that a TCU automates the operation of the clutch. But I'm clueless on how an AMT can do anything a human does using a manual. 1)If you are stopped at a hill. When pulling off, a driver brings ...
3
votes
1answer
108 views

Yamaha YZ125K 1983 transmission bearings

I'm restoring an engine and am unable to locate 3 gearbox bearings. Identifying mark is either IXO or IKO. It is a needle roller bearing type and sits RHS crank case 1/3rd gear shaft. Mark clearly ...
3
votes
1answer
4k views

Toyota FJ Cruiser transmission problem

Got Toyota FJ Cruiser 2010 Automatic, 4x4 full stock (no warranty, I live in Central Europe). I have strange transmission issues. I had already spent 2,5 years of life and about 2500$ just to diagnose ...
3
votes
1answer
962 views

Honda Accord Jerks when shifting gears and makes grinding sound?

I have a 99 Honda Accord 2dr 3.0L V6 automatic. When I drive this car it makes a whooooo sound coming somewhere from the engine, when I turn to the right it is intense and when I turn to the left it ...
3
votes
1answer
960 views

Sluggish Acceleration, Minor Surging

I have a 2000 Infiniti i30 with 160K miles that is in fantastic shape. I purchased it from a mechanic who had gotten it from a customer who basically ended up not wanting it. The mechanic replaced the ...
3
votes
0answers
31 views

2006 Altima slow to shift into 4th when running cold

I have an automatic 2006 Nissan Altima and am having what I assume is a transmission issue. When I have not recently been driving, my car is slow to shift into 4th gear. Normally it will shift and I ...
3
votes
0answers
877 views

John Deere SX-85 will not go into reverse, or move backwards

I have John Deere SX-85 riding lawnmower which comes with a Peerless 910 series transaxle. It has mowed the lawn twice since the installation of all new belts over the winter. During the second mow, ...
3
votes
1answer
241 views

Pulley Difference After Drive Belt Change

I have one worry after yesterday's fairly difficult but successful drive belt change on my Big Boy scooter. The main nut on the fron pulley now goes on much less further than before it came off. I ...
2
votes
4answers
57 views

Remove Transmission Oil Pan Stuck Bolt

I'm still in the process of changing my 2009 Nissan Sentra CVT fluid. But now I'm stuck, well, me and the pan bolt are stuck. I tried the combination wrench but couldn't get enough leverage. Took the ...
2
votes
2answers
1k views

What is that knocking sound my engine makes when the revs drop too low?

I have a 2013 Subaru Impreza with a 2.0 liter engine and a manual transmission, and when I let out the clutch too fast while in reverse or 1st, sometimes the engine RPM will drop so low that it makes ...
2
votes
3answers
49 views

What is this thing behind my oilpan and is it bad that it's cracked?

Sorry I can't be more specific. I have no idea what it is and my google-fu has failed me. Here is an image of the part in question. It is in the center of the image and has a large crack in it. ...
2
votes
2answers
107 views

CV Joint Overhaul - is it worth it?

I have problems with one of my CV joints on my 1993 Acura. I read the repair manual and they suggest that actually fixing the joint itself is a pain and that most people should just buy a new axle ...
2
votes
1answer
217 views

How bad is it for transmission if you release clutch without gas in second gear?

For instance, if you stop at the red light and you release clutch while still in gear in manual transmission, the car would wobble and die. Of course you can start it up again, but what is the actual ...
2
votes
2answers
910 views

unusual noise when switching into the second gear - other gears are fine

Almost every time I switch into the second gear, a quite loud crackle sound is heard shortly. It only happens when switching into the second gear, other gears are fine. I depress the clutch fully of ...
2
votes
2answers
206 views

2010 VW Stuck in Park

I have a 2010 VW Jetta Stuck in Park. When I turn it on, press the brake, and press the shifter button it doesn't move. How do I get it out of park? The brake light and dash indicator do toggle ...
2
votes
4answers
4k views

Can't move Chrysler 300M gear selector out of park

I got into my car this morning and couldn't move it from park after I started it. I can't change the gear at all. I can move the wheel, though. I've tried to wiggle it but haven't forced it because I ...
2
votes
1answer
358 views

1989 Mazda 626 - Shifter is loose, what's wrong?

I have an 89 Mazda 626 LX. The shifter is really lose even when it's in gear. It shifts fine, no slipping or anything, but when it's in gear I can move it back and forth as if it was in neutral. ...
2
votes
1answer
44 views

How Many Partial Oil Transmission Fluid Changes Until Clean

I have to change my transmission oil (2008 Nissan Sentra CVT). It has a 7 liter total capacity, but due to the torque converter, I can only drain 4 liters at a time. Thus, I have to make several ...