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7 votes

Does engine braking an automatic wear out the transmission?

Basically, yes. Automatics don't have a clutch per se, but you're causing additional wear and tear on the internals. Basically you're reversing the power flow -- instead of the engine driving the ...
TMN's user avatar
  • 2,311
7 votes

"Keep in low gear" driving a gearless electric vehicle

Electric vehicles can "engine" brake by using the drive motors as generators. As they generate electricity they consume the car's potential energy - either from speed or elevation or both. The energy ...
dlu's user avatar
  • 14.5k
7 votes
Accepted

Never declutch while braking at higher speeds: meaning

There are two things to think about here. (1) On a bike, engine braking only acts on the back wheel. If you press the clutch while you are braking hard, you change the "balance" of the ...
alephzero's user avatar
  • 2,954
6 votes
Accepted

Disengaging gear when braking/Coasting

If you're coming to stop, the inertia of the vehicle drives the wheels. This keeps the engine spinning if you don't touch the clutch until the absolute last moment. In your case it sounds like this is ...
Eric Urban's user avatar
  • 1,286
6 votes

New pads braking cause medium steering wheel vibration, shims were not replaced, rotors look good

Vibration through the steering wheel is generally caused by a defect in a rotating part or an imbalance in a rotating part. Note: neither pads nor shims rotate. If the problem is the same after you ...
Tim Nevins's user avatar
  • 1,036
5 votes

Braking with left foot is sharper than doing with right foot

It is because you have, over years, “educated” your left foot /brain / muscle memory to hit the pedal and go to the floor ie clutch to change gear. You now have to re-learn the use of the left foot ...
Solar Mike's user avatar
  • 34.6k
5 votes
Accepted

Brake pedal goes to floor "sometimes" only

It's not a stupid question at all! You are right to be concerned, brakes are critical for safety and you need to deal with this before you get in an accident. The ABS light turning on while it was on ...
GdD's user avatar
  • 17k
5 votes
Accepted

Does engine braking help stop a car faster in an emergency?

No, it does not, at least not in a car that has a properly working braking system. In every modern car the brakes are capable of locking up the tires on both the front and rear axles. Today that ...
jwh20's user avatar
  • 12.1k
4 votes
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Car randomly pulls left or right when braking

What you are most likely experiencing is the pull from tires when breaking on uneven surface or road with grooves from heavy vehicles. If you have rather wide, sticky, square tires, this is what it ...
Alexus's user avatar
  • 550
4 votes

Car randomly pulls left or right when braking

If you have worn out steering parts, these can cause your issue, worn parts cause slack in the steering, when you brake it will pull to the side which has the most slack at the time. You can test for ...
Moab's user avatar
  • 7,990
4 votes

Mixing DOT 4 with DOT 4 synthetic

DOT 3, 4 AND 5.1 can be mixed. They are compatible. None of them are compatible with DOT 5 that's silicone-based. I just bought some Motul DOT 5.1 and it says on the front label: "NON-SILICONE base ...
Houckster's user avatar
3 votes

Can rotors be different thickness on both sides of the car?

Yes, rotors can be different thicknesses, as long as the active friction area is the same And they are above the minimum thickness. It is customary to fit new rotors in pairs when both are worn ...
Solar Mike's user avatar
  • 34.6k
3 votes

Mixing DOT 4 with DOT 4 synthetic

Manufacturers have been labeling their DOT3 and DOT4 products as "synthetic" as many consumers associate this with higher performance or quality similar to motor oil. But ALL brake fluids can be ...
masospaghetti's user avatar
3 votes

When braking and the car is near to stop I hear the sound of acceleration

I have a manual Subaru with electronic throttle control and this happens to me sometimes. The ECU is assuming that you are about to downshift, ie, into a parking lot or something similar. It increases ...
Nathan Tehrani's user avatar
3 votes

2001 Chevy Cavilier brake issue

Sounds like you have 2 problems. Brake pedal that goes down to the floor at a red light is a bad Master Cylinder, replace it Common issue as cars get higher mileage is the Thottle Body and throttle ...
Moab's user avatar
  • 7,990
3 votes

Car randomly pulls left or right when braking

I disagree that this is a wheel alignment issue, as the car is pulling randomly to either side - I'd expect alignment to either show no pulling, just tire wear, or to pull consistently to one side. I ...
PeteCon's user avatar
  • 8,712
2 votes

Car rolls back when braking at low speed on 14 ' Audi S4 (B8.5)

If it's the control arm bushings, you should notice that the wheel itself shifts a bit backward in the wheel well. It certainly is bad for other components as well as vehicle handling because you get ...
Alexus's user avatar
  • 550
2 votes

What is regenerative braking and why don't we use it?

We can do the next best thing. 1/2 mile (800m) ahead, I see a light turn yellow; at 60 mph (100kph) that's 30 seconds. And I know that light has about a 35 second cycle, plus 10 seconds for the ...
Harper - Reinstate Monica's user avatar
2 votes

What is regenerative braking and why don't we use it?

Regenerative braking is only really useful on electric or hybrid cars for the simple reason that they have a way to make use of the energy stored. Also once you have an electric motor as part of the ...
Chris Johns's user avatar
  • 1,586
2 votes

Does switching to neutral on an automatic transmission improve braking for immediate stopping?

Shifting into neutral CANNOT, and DOES NOT allow for more controllable nor more efficient braking. Torque converters "Lock-Up" when the car is being Driven by the engine. NOT upon deceleration. When ...
B. McClure's user avatar
2 votes
Accepted

Does engine braking an automatic wear out the transmission?

Sorry for bringing up an old thread, but I'd just like to add my personal experience with this. Long story short, I recently took up the practice of engine braking on an automatic minivan, and my ...
Steven Sanchez's user avatar
2 votes
Accepted

ABS noise and pulsation in brake pedal while braking

The fact that there is no fault codes or ABS light it probably means that there is either a mechanical fault with one of the wheel speed sensors or a intermittent short circuit. I've seen many things ...
Newbie Noob's user avatar
  • 2,781
2 votes

Brake Jam on Opel Corsa

I'm not entirely sure if this issue can be caused by other brake parts such as the ABS module, but in this answer I've formulated what seems to me the most logical explenation. These are my thoughts: ...
user60481's user avatar
  • 1,339
1 vote

Increasing dead stroke of a hydraulic hand brake

The first idea is to separate the rod pushed by the lever into two parts, so it has a sliding section in the middle, such that the initial movement moves a small piston into a cup - once it hits ...
Solar Mike's user avatar
  • 34.6k
1 vote

Can tire-road adhesion be measured?

It wouldn't be too hard too test a tyre for it's roadholding performance. Here's how i would do it. Possibly it is done exactly this way by manufacturers. If you apply a precisely dosed force on a ...
Bart's user avatar
  • 2,954
1 vote
Accepted

Can tire-road adhesion be measured?

I believe that a predictive model would be the best thing you could create. There are so many variables from tire wear and temperature to road conditions and slope that having a perfectly accurate "...
JPhi1618's user avatar
  • 13.2k
1 vote

Scraping noise when braking

Firstly check the tyres for any rubbing marks around the outer side tread area. Its possible that when braking and the front of the vehicle dips down a little the bodywork is rubbing on the tyre. If ...
Orb's user avatar
  • 5,067
1 vote

Scraping noise when braking

Check and see if the plastic on the inside of the wheel well popped loose. It may be rubbing the tire when you brake (or maybe turn).
xpda's user avatar
  • 631
1 vote

2008 Jeep Wrangler - Painful noise when coming to a stop

Yes! Fellow Jeeper here..and I swear I’ve encountered every strange braking sound on my 2009 JKU. Have you checked the slide/guide pins on the caliper? One could be failing and causing the pad to ...
IdahoFish's user avatar
1 vote

How much movement is normal in sealed brake master cylinder?

Yes, this is normal, if you ever rebuilt a MC you will see there are springs behind the cups on the pistons, when installed in the car and properly bled you will get about half the distance or a ...
Moab's user avatar
  • 7,990

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