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Questions tagged [drivetrain]

The group of components in a motor vehicle that generate power and deliver it to the road surface. These components can include the engine, transmission or transaxle, transfer case (if so equipped), drive line, and axles.

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3answers
57 views

Mismatched brand tires on back, bad on high speeds?

Wouldn't post a new question if the internet wasn't full of "Yep, perfectly fine" one one side and "Nope, you're going to hit the closest tree" on the other side. Driving a FWD Volvo S40 2.4i. ...
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1answer
15 views

Odd squeak from axle/bearing area at any speed

My FWD 2001 Ford Focus has an odd rubbery squeak sound combined with a more thumpy sound from inside the vehicle at any speed. There is no sound when accelerating, and a slight sound (much less) when ...
4
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1answer
33 views

Vibration after the car has run for a while

First question here; go easy on me. So I have an e30 BMW(1989), the car runs fine however when I have driven for a few minutes a vibration occurs when I travel around 60(kph) This does not happen ...
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0answers
26 views

Cracking noise when launching vehicle or at lower gear

I have a Nissan X-Trail 2002 manual with almost 300k on it. I know it's old, but it was the only secondhand manual SUV I could find. The last service was about than 3 months ago. I drove it into a ...
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0answers
8 views

Thumping and scraping sounds

I recently bought a 1995 Toyota Corolla that has been in a wreck. When accelerating, there's almost always a thumping sound that increases with tire speed. It gets louder if I turn left and goes away ...
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2answers
101 views

What is a through-drive axle? and what is an interaxle differential?

While reading the 'Mercedes Truck Front Axle Systems' (https://www.mercedes-benz.com/en/mercedes-benz/vehicles/aggregates/powertrain-trucks-front-axle-systems/) I was confused as to what a 'through-...
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1answer
257 views

Powertrain vs Drivetrain vs Driveline

I did a bit of research and I'm really confused. Need a clear distinction between all three.
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1answer
2k views

Thumping/vibration linked with wheel rotation

I have a 1999 Mercedes C class with a wheel vibration. Its a pulsing kind of like tapping your finger on a table or driving over grooved roads. Its linked to vehicle speed and is apparent from really ...
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0answers
312 views

Vibration during Deceleration

I have a 2001 Mitsubishi Lancer CE, I recently replaced the clutch as the release bearing was no longer servicable. After replacing the clutch I noticed during deceleration a vibration like noise. At ...
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0answers
683 views

What could cause a clicking/popping noise when driving straight? (video)

Car is automatic front wheel drive Toyota. The sound comes on light-medium acceleration from speeds 15-35mph even when driving straight and it sounds just like a bad CV joint. In the video I have ...
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1answer
371 views

Tire and drive shaft revolutions near equal?

Obviously if you have a front wheel drive it is the same. When a rear wheel drive car makes 1 tire revolution while driving how many revolutions does your drive shaft make? Are driveshafts mistaken ...
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3answers
54 views

Why does my 1997 Suburban sometimes not get up and go?

I've got at 1997 Chevy Suburban. Recently we had the fuel pump changed, because we hit a bump and it gave up the ghost. In the last month there have been at least three times when we we've stopped, ...
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0answers
362 views

Possible causes of rotational axle play and rattling

Car is a 2007 Saturn Aura AT A while ago I ran into a large rock with my passenger front wheel, insurance paid for the apparent damage but about a week later I started feeling rattling from that ...
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1answer
5k views

Can driving in drive 2 damage my car

Not going to over inform here, suffice it to say that my 1997 Jeep Wrangler engine begins to choke and cut off at stops. Many ideas and repairs tried. I recently found that driving in (Automatic) ...
6
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1answer
364 views

PTFE or standard high temp grease for a slip joint?

My 1997 Ford F-150, 4.6L with automatic, is suffering from the slip join "clunk" at stops/starts. My research has found this is a common problem when the output shaft splines get dried out. It ...
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1answer
95 views

Metallic thud sound

Recently after having my car sit for 3 months I noticed a metallic thud sound wich can be heard in any of the two following scenarios: -When braking only when im reverse (it only happens once for ...
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0answers
808 views

clunking noise over bumps from rear right 1997 ford ranger 3.0 liter 5 speed manual transmission

I've noticed a clunking sound coming from rear right side of my truck when going over bumps. It's a 1997 Ford Ranger 3.0 liter manual 5 speed, has over 150,000 miles. Haven't found loose suspension, ...
4
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1answer
825 views

Different tread depths on 2wd?

I am sorry if this question has been asked before I tried searching. My 05 civic which is a fwd has one tire on the back with very low tread unlike the other tires mounted on the car, is this going to ...
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0answers
92 views

Where to learn about manual transmissions?

I own a 2007 ford fiesta ST150, which is a 2L FWD, so obviously it has a transaxle. I'm generally pretty comfortable working with my car, I'm only an amateur, a shade tree mechanic but I'll happily ...
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1answer
512 views

Vibration following replacement of universal joints on drive shaft of rear wheel drive vehicle

I recently replaced the 2 universal joints on the drive shaft of my rear wheel drive Lancer station wagon (instead of the entire drive shaft). small welding tacks were done to keep them in place. ...
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2answers
2k views

clutch makes noise and small vibration when disengaged

I recently bought a 1998 Kia Sportage. The previous owners said that the clutch was recently replaced, but I noticed after driving it for a while that when the engine speed is pretty high (around 4000-...
6
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1answer
430 views

Using 4wd on snow/dry pavement bad for 2012 Pathfinder?

Just bought a 2012 Nissan Pathfinder LE. I live in Colorado where the weather can be pretty random and very location specific. This creates areas of the town where snow may be covered in some areas ...
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2answers
810 views

2003 Ford Ranger Drivetrain Noise while Coasting

Me: 2003 Ford Ranger XLT, Automatic Transmission, 4.0L V6, 4x4, 180k miles. I do my own vehicle maintenance (brakes / suspension / ...), but am not a mechanic by any stretch. The Issue When ...
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0answers
52 views

rapid driveline clanging on ice

('07 Cobalt; 50K miles; NO ABS, no traction control, no limited slip) First winter storm for this car. When accelerating or braking on poorly-plowed road (so, slush/ice/some pavement), I got a ...
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1answer
3k views

Subaru clunking and whining - differential?

I have a 2002 Subaru Outback with a 5 speed manual and 160k miles on it. The previous owner claims to have replaced the front differential, because it was locked up. Now, I have been hearing whining ...
3
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1answer
5k views

2009 Ford Focus SE, Vibration returning after replacing Engine Mount

Like the title says, my car is a '09 Ford Focus SE, with an automatic transmission. Last year it started developing a vibration. Between two jobs and school, I just didn't have time to get it looked ...
7
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1answer
10k views

Grinding noise while driving

On my Opel/Holden Astra H (150KKm, front wheel drive, m32 6-speed manual transmission) I hear a slight grinding noise from the right-front, starting at about 40 km/h. The noise is synchronous to the ...
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0answers
53 views

Oil leak at rear drive shaft… 86 jeep comanche

There is a new leak at the rear driveshaft. What could this be and how do i fix? Mechanics cost too much and are unreliable (past experience) the repair manual said if it leaks in the rear the problem ...
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2answers
185 views

Pranged bearing bracket on main driveshaft: can I drive the car?

My son took my wife's all-wheel CR-V down a rough road and bent one of the suspension brackets for the central drive shaft. The car was still movable, but made grinding noises as he drove the last few ...
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2answers
11k views

Throw out bearing, input shaft bearing, or drive shaft support bearing?

I have a '94 BMW 318is manual transmission. I hear a grinding/whirring noise while driving that sounds to me like a bad bearing. I typically hear it when I engage the clutch. The sounds is more ...
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1answer
4k views

Does 2WD mode save me gas over AWD(auto) mode?

My 2015 Nissan Pathfinder has a switch for 2WD, AWD (auto), and 4WD Lock. Do I save gas by keeping it in 2WD? Or it doesn't matter because it's still the same drivetrain and it simply doesn't apply ...
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1answer
3k views

2003 Dodge Durango - Can I take the front drive shaft off and drive the vehicle?

I most likely have a messed up front differential on my 4x4. I was wondering if I can just take my drive shaft off and run it on RWD only? Can I just remove the universal joint pin and retain the ...
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1answer
166 views

Does it save wear on AWD drivetrain to shift to Neutral before going into Park or Reverse?

I have an old Subaru with All Wheel Drive. I can feel in some circumstances the larger and more complex drivetrain "winding and unwinding" all those differentials and CV joints. It feels unpleasant, ...
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2answers
4k views

What additional wear will occur on the drivetrain from running larger tires and not regearing?

This is probably best viewed as a general question, however specifically I'm talking about a 2004 Jeep Wrangler Unlimited with an automatic transmission. I have gone from stock 29 inch tires up to 33 ...
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2answers
445 views

Identify that part of my S56 BMW M Coupe

There is a driveline component with a rubber shock absorption ring in it. It sits between the tranny and driveshaft. I cannot remember the name of this component. Does someone know the name of ...
7
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1answer
2k views

How to shorten a driveshaft?

How can I shorten a driveshaft? Are there any warnings before proceeding? What tools are required, and optimal? Is there a "required" way to measure correctly? How can I keep the metal square? Is ...
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1answer
110 views

What exactly is an outer CV joint and how can I replace one?

I recently got my 2004 VW Passat B5 a new MOT, but they said that an advisory item that would get worse over time were worn outer CV joints. The car creeks when turning on full left lock, though I ...
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1answer
77 views

Driving simulation while on front jackstands

I have a 2007 Tacoma, 4WD. I wanted to perform a driving simulation but with the truck being still in order to troubleshoot a rattling sound I can't reproduce when the engine is idling but the ...
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2answers
2k views

Why is it that the front of the car lifts up when releasing the clutch?

I don't know much about the inner workings of a car. For driving one, I find that having an rough idea about what the gearbox, engine and clutch do and where they are is often enough. However for the ...
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1answer
1k views

Speed difference between rear wheel and front wheel drive

Hypothetically if we have two almost identical cars with identical attributes (horse power, engine size, weight, etc.) , but one of them is front wheel drive and the other is rear wheel drive. My ...
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4answers
17k views

Is there a benefit to belt driven motorcycles?

What are the pros and cons of belt driven motorcycles compared to chain driven bikes?
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1answer
1k views

Drivetrain sounds like rustling leaves above 4k RPMs

2011 Mazda6 FWD 2.5L I4 6-speed manual 85,000 miles 5-6k miles ago (2-3 months) I started to notice a "rustling" sound coming from the front of my drivetrain, but only when in gear above 4,000 RPMs. ...
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2answers
1k views

Fixing vibrations caused by replacing springs?

I am slowly restoring a 2000 Jeep Cherokee Sport with 97K miles to use as a winter/light towing vehicle. I had some sag in my coil springs and leaf springs and the shocks were shot. So I had my ...
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1answer
2k views

New engine and clutch, have weird vibration @3K RPM

I just replaced (well, had someone else replace) the engine in my 06 Solstice. The engine runs great for the most part (will open a separate question about that), but there is a weird vibration at ...
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1answer
420 views

Downshifting to a stop- wear and tear?

I drive a Mustang GT, and I love the deceleration "pop" that you get when the engine revs climb without the accelerator being pressed, so as one might surmise, I tend to downshift to a stop at lights ...
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1answer
82 views

I have a car drive-train question. [closed]

I have a car drive train question. I'm looking at used SUVs since my last car died 3 months ago (20 yr old Honda Accord), specifically looking at vehicles like the Honda CR-V or Toyota RAV4.I know AWD ...
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5answers
23k views

Car pulls to right when letting go of accelerator?

I'm driving an old Grand Voyager minivan temporarily, and notice that when I accelerate then let go of the accelerator, the car pulls slightly to the right, and I have to correct it by steering a ...
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6answers
18k views

Does wheelspinning damage my car?

Apart from the tires, if I pull off quickly and I wheel spin, do I cause any damage to the internals of the car? Obviously I don't mean reving it to 4k+ and then dumping the clutch, I mean speeding ...
6
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1answer
330 views

Wrangler JK transfer box options

Apologies for a very Jeep-centered question, that may not interest everybody. Here goes: I own a 2009 Wrangler JKU (pre face-lift), equipped with the 2.8 TD engine, Chrysler NSG370 six-speed manual ...
6
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2answers
9k views

2000 Chevrolet Silverado - Clicking Noise From Front Differential

I have recently noticed a clicking noise from the front differential on my 2000 Chevrolet Silverado when traveling at low speeds (under 10 MPH, but I'm sure it's always there, but it's too fast/too ...