These are questions regarding either manual or automatic gearboxes and their component parts.
17
votes
9answers
13k views
Does Downshifting (Engine Braking) Cause Extra Wear and Tear?
Does the act of downshifting to slow your vehicle down have any negative side affects?
I don't downshift more than one or two gears at a time and I let out on the clutch slow enough that I don't rev ...
12
votes
1answer
3k views
Why does the reverse gear in manual transmission cars sound different
When I got a manual transmission car (2003 Kia Rio) I noticed that it makes a winding sound in the reverse gear.
Here is an example video that I found that demonstrates the sound.
...
12
votes
4answers
926 views
Is downshifting on hills harmful for non-trucks? [duplicate]
Possible Duplicate:
Does Downshifting (Engine Braking) Cause Extra Wear and Tear?
Since the days of taking drivers ed (many years back). I was told that when you encounter a steep or ...
11
votes
4answers
4k views
Driving in second gear at 65+ mph
I accidentally drove my 2000 Grand Marquis on second gear on the highway. I was going 65 for like 5 minutes and tried to get it to 70mph but the car was shaking, when I realized I put it into regular ...
7
votes
3answers
173 views
How difficult is it to rebuild a transmission?
I have a 1984 Toyota Supra that is now exclusively a track car. The last round out we let some less experienced drivers take the wheel and they basically destroyed the transmission. Nothing but 4th ...
7
votes
3answers
381 views
What problems may occur if clutch is not used?
I was curious about what problems may arise if clutch is not used when shifting gears. Are the problems similar for both cars and bikes?
7
votes
2answers
1k views
What is the life expectancy of a Honda Civic Hybrid Continuously Variable Transmission?
I have a 2006 Honda Civic Hybrid with continuously variable transmission (CVT). At the 90k tuneup, the mechanic added 3.5 quarts of the regular automatic transmission fluid. At 110,000 miles, the ...
6
votes
2answers
232 views
Manual transmission at stop: 1st with clutch in, or neutral with clutch out? -OR- Throwout Bearing wear
When sitting in traffic or at a long red light, is the Best Practice to have the car in 1st gear with your foot on the clutch, or in neutral with your foot off the clutch?
Some say that you should be ...
5
votes
3answers
558 views
Semi-automatic car inadvertently driven in manual mode
I have a 2008 Mazda 3 car with a semi-automatic transmission (i.e. it is automatic with the ability to switch to a manual mode).
On the weekend, it was driven by somebody else who accidentally put it ...
5
votes
3answers
151 views
Switching gears without clutch
I drove manual car for a long time but never tried to switch gears without clutch.
Question: given that clutch-less shift is executed properly, does it take a toll on transmission in any way? For ...
5
votes
2answers
165 views
Why won't my Honda Rebel shift when idling?
I recently ( and successfully ) rebuilt the engine of my '09 Honda Rebel; she's running well but doesn't want to change gears when idling.
If I'm moving she shifts gears without any hanging, ...
5
votes
2answers
103 views
Clutch pedal no longer provides resistance, clutch won't disengage, what likely failed?
A little background information:
Car: 1993 Ford Mustang LX [2.3L I4], 5-speed T5 transmission.
I bought the car a few months ago, according to the previous owner the clutch was replaced fairly ...
5
votes
3answers
386 views
How can I be sure my vehicle is a 4x4 / AWD?
I bought a pre-owned Volvo XC90 - 2007 3.2 V6 AWD. Or at least that's what it says on the car and the paperwork.
Even in the dry, this car regularly spins the front wheels and there is fairly ...
5
votes
2answers
353 views
Why can't the 3rd generation Mazda rx7 safely coast downhill in neutral?
The manual for the 3rd generation Mazda rx7 says not to roll downhill without the engine engaged, because the exhaust can overheat. Unfortunately, the manual does not explain the mechanism by which ...
4
votes
2answers
479 views
Burning smell, leak, losing power. Maybe transmission related
First off, I know almost nothing about cars. I can fill them up with gas and drive them. That's about it. This car is a '99 Subaru Outback, automatic.
When I last took my car in for an oil change, ...
4
votes
2answers
4k views
Engine revs high 5th gear manual transmission
What might cause a car with a manual transmission that in 5th gear when given a punch of gas revs to very high rpms – with no power transferred to the wheels (i.e. the tachometer and speed go ...
4
votes
3answers
776 views
chevy impala jerks after stopping
I have a 2003 chevy impala. When I hit the gas (whether it be a light tap or hit it pretty hard), my car kind of waits a second, jerks and then takes off (revs go kinda high when it's waiting). To ...
4
votes
1answer
55 views
Major transmission failure - Manufacturing fault?
I have recently purchased a brand new 800cc 4 speed manual dune buggy. As part of my testing after around 3 hours of driving (carefully and without any impacts) the manual transmission has essentially ...
4
votes
1answer
679 views
Passing Emissions Test: Can't figure out how to fix code P0705 on a 1997 Nissan D21 / Hardbody / Pickup
So hello. I have had a lot of luck with my other vehicles on forums and a recently became the (hopefully-soon-to-be)-proud owner of a 1997 Nissan D21/Hardbody/Pickup XE. It has 156k miles on it and is ...
4
votes
3answers
42 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
1k views
Reverse difficult to engage with manual transmission
I have a 2000 VW Jetta TDI with a manual transmission. In the past few days, I have not been able to push the gear shifter into reverse without letting up on the clutch. I get about halfway from ...
3
votes
3answers
596 views
Is Redline Lightweight Shockproof appropriate for an aging 2004 Subaru Impreza manual gearbox?
I have an aging (but wonderful) 2004 Subaru Impreza WRX with a manual gearbox. For some time, I have noticed that the synchros have begun to feel worn with the stock dealer-issue oil. Shifts are ...
3
votes
1answer
218 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
2answers
561 views
Engine braking with an automatic transmission
For reference, I've reviewed these three questions:
Manually shifting an automatic transmission?
Does Downshifting (Engine Braking) Cause Extra Wear and Tear?
Is engine braking harmful?
I drive a ...
3
votes
2answers
2k views
Automatic transmission: Is shifting to neutral while approaching stops bad?
This is not with the intention of saving fuel (as I have seen many answers assuming savings in fuel while doing this), which is very cheap here in the middle east. But I have this habit of putting the ...
3
votes
3answers
736 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
471 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
321 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
530 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 ...
2
votes
2answers
90 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
2answers
1k 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 ...
2
votes
2answers
359 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
77 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
4answers
529 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 ...
2
votes
1answer
231 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
86 views
How do the cycles of the engine get converted into cycles of the wheels?
Is it the transmission that converts the high rpm of the engine into the lower rpm of the wheels rotation? Let's say that an engine was running at 500 rpm (this refers to the rpm of the crankshaft, ...
2
votes
1answer
111 views
When looking at a transmission, how can I know if there is a LSD?
How can I know if there is an LSD installed on a transmission from a Dodge Neon 2003? For what indicators should I look for?.
2
votes
1answer
504 views
Altima Clutch and/or Transmission Problems
I have a 2005 Nissan Altima SE with a manual transmission. The clutch was completely replaced about 7k miles ago. I bought the car about 5k miles ago. At around 2-3k miles ago is when the problems ...
2
votes
3answers
524 views
1997 Olds 88, trans issue?
A friend of mine pointed me this way due to my current problems; I've been working on this for three weeks and am no closer to diagnosing the issue, so hopefully someone here can point me in the right ...
2
votes
1answer
288 views
2006 Toyota Corolla Jerks while coasting
I have a 2006 Toyota Corolla with roughly 65k miles. Problem I'm experiencing is that every now and then she will give a couple of jerks while coasting along. Most of the time the car is traveling ...
2
votes
1answer
34 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 ...
2
votes
0answers
51 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 ...
1
vote
4answers
118 views
Use of Neutral Gear in Automatic Transmission
I am new to driving A/T cars and I am trying to understand the use of Neutral(N) gear. Should I shift my gear from D to N when my car comes to a complete halt on a red light or somewhere else? As per ...
1
vote
1answer
79 views
Cost to alter the transmission system
How expensive would it be to replace a manual transmission system to an automatic?
1
vote
2answers
74 views
Can anyone identify the problem?
I just broke down. Here's a description: ('97 Subaru Legacy)
Driving completely normally along a town road, the car suddenly began to sputter and jump as I pressed on the gas. Then the check engine ...
1
vote
2answers
153 views
How does a belt drive CVT variator work?
The title basically says it all, but I am the most interested in what the rollers actually do?
1
vote
2answers
74 views
Possible to diagnose broken transmission without starting engine?
While I know a little about cars, the bulk of my knowledge came from when I was a kid bolting on stuff to my Honda and racing it illegally. (So, not much.)
My '96 Civic DX (5-speed) recently passed ...
1
vote
2answers
235 views
How much efficiency is robbed from 'pumping loss,' if any?
I'm specifically referring to the loss due to the pistons pulling air through a mostly closed throttle while cruising at highway speeds in a gasoline engine.
To give an example, I've always wondered ...
1
vote
1answer
154 views
How to generate involute gear milling Gcode
I need to make some gears/pinions myself. I have access to a high quality 4-axis CNC mill, but not to a lathe. I'd like to cut these gears out of flat stock (facing), rather than round (edgewise) ...
1
vote
1answer
398 views
How do I change the CV Joints on my 2003 Acura TL?
How do I change the CV Joints on my 2003 Acura TL?
My 2003 Acura TL 3.2 has been making creaking sounds when I turn around corners and I've been told that old, noisy CV joints are likely the culprit. ...
