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Questions tagged [acceleration]

The act of increasing speed over time.

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13
votes
2answers
2k views

Accelerator pedal stuck briefly - how to make sure it doesn't happen again?

While reversing into my drive the accelerator pedal briefly got stuck - luckily in the "up" position, not the "down" position, but given the hump in my drive that needs a little gas to get over, it ...
11
votes
2answers
6k views

When I step on gas pedal, the engine revs up but there is no acceleration

When I step on gas pedal, the engine revs up but there is no acceleration. When step off gas a bit it car starts to accelerate again. It's a manual transmission. 2005 Toyota Corolla. This is happening ...
9
votes
3answers
17k views

Scooter: Motor goes off when accelerating

A friend wants to sell me a scooter for a very cheap price. It is a Chinese model (Qingqi QM125T-10M). Probably a 125cc machine. He tells me that the scooter worked fine and he used it to go to work ...
8
votes
3answers
87k views

Rough Low Idle and Engine Shakes, Hesitation and Lack of Power

On a 98 Mazda 626 GF 2L I'm working on the engine seems to shake / wobble for about a second / second and a half when going to WOT from any starting rpm. It also almost sounded like maybe one of the ...
8
votes
2answers
614 views

06 Solstice - weird hesitation / bogging under heavy throttle

I wonder what percentage of the questions here are from me about this car... When I try to accelerate with more than about 60-75% throttle at lower RPM (say, under 3k or so), the car starts to ...
7
votes
1answer
2k views

Warm fuel injected engine stutters when accelerating

I have a 1994 Honda Concerto 1.5l gasoline car, fuel injected. When the engine is cold there are no accleration problems. But once it warms up it stutters if I step hard on the gas. When it does ...
7
votes
1answer
843 views

Slow acceleration when pressing hard on the gas

I have a 99'chevy camaro z28. It has been accelerating very slowly and eventually dying on me. I've changed the battery, spark plugs and the fuel filter. It manages to turn on and stay on fine. It has ...
6
votes
2answers
11k views

Rough idle + slow acceleration + engine dying after spark plug change

I recently changed the spark plugs and wires on my 2002 Ford Focus SE with Zetec (DOHC) engine. I used NGK TR5IX (7397-4PK) Iridium IX plugs and Motorcraft wires. When I received the plugs, they were ...
6
votes
1answer
791 views

Accelerator pedal goes to the floor sporadically while driving

One of my cars is a 1987 Chrysler LeBaron GTS, which originally belonged to my mother, and has only 30,000 miles on it. Occasionally, the accelerator pedal will go to the floor. (My mother took ...
6
votes
3answers
1k views

Optimal acceleration for automatic transmission? [closed]

In a car with automatic transmission, what's the best way to accelerate so as to minimize fuel consumption? Assume I'm not going to change the gears manually. Note that I'm also considering non-flat ...
6
votes
1answer
1k views

What could be the result of this missing o-ring?

Consider this o-ring : And this full diagram if you need a more global view : For completeness sake, here are the real parts : Where the o-ring goes : Where the little hole leads : The other end ...
5
votes
2answers
4k views

Why is my car losing power when accelerating?

I have Skoda Fabia 2002 with manual gear and over the past few days I find the car losing power when accelerating fast. When I push gas pedal to accelerate quickly (in any gear) I hear the engine ...
5
votes
4answers
1k views

What Accelerates a Vehicle With a CVT?

Back story This has been on the back of my mind for a while. I once had a long-term rental (5 months) with a CVT transmission, and after a couple of days, I figured out the best way to drive it, and, ...
5
votes
1answer
144 views

Acceleration pickup of a car

When I say "Tata Winger can accelerate from 0 to 100 Kmph in nearly 19 to 20 seconds, which is quite good for this class" - how is it measured? Is this by accelerating the car from 0 to 100 kmph on a ...
5
votes
2answers
338 views

Varying acceleration while riding

My motorcycle, a KTM Duke 200, while riding is producing varying acceleration. This is during a single ride. For about a few minutes, the acceleration is alright, then after a few minutes, the ...
5
votes
1answer
19k views

Does using the entire rev range of a car damage it?

On my standard 2000 1.2 Opel Agila, I often have to get to about 5000RPM to join a fast road on a steep (1 in 10) hill, as it is gutless on hills. I have to do this almost every day, and I have ...
5
votes
2answers
918 views

Bigger/smaller tires

On a track, bigger tires have more contact therefore more traction. However, it comes at a cost of more unsprung weight. Therefore, the 0-60 time is slower as tested by Car And Driver. This was tested ...
5
votes
1answer
4k views

Nissan Quashqai acceleration problem

I have a 2009 1.5dci Nissan Quashqai diesel with 59k miles on the clock. I am experiencing the following symptoms and would appreciate any guidance the community can offer: 1) Car is ticking over ...
5
votes
2answers
903 views

Reasons car loses ability to accelerate with time?

My car hasn't done vast amounts of miles (short of 60000), but already at 30-40000 I would say I noticed it's ability to accelerate has dropped. It is still OK for my use and the fuel efficiency is ...
5
votes
1answer
1k views

Should an automatic drop gears while driving flat without using any pedals, or should it cruise?

I fixed a problem with my accelerator pedal, which caused a different unexpected change to how my automatic behaves. Since it's my first automatic (I normally drive manuals), I want to know which is ...
5
votes
3answers
2k views

2000 Honda Accord Shakes under acceleration

I have have Honda Accord 2000 with manual 5 gear transmission. During acceleration it shakes like front end is ready to jump out. Engine doesn't misfire or anything - I have plenty of power on all ...
5
votes
0answers
1k views

1998 Nissan Sentra (automatic): Hard/No (Re)start, Intermittent Stalling, Jerky Acceleration

In an attempt to be as detailed and thorough as I could be in order to correctly and potentially definitively diagnose the issue(s) plaguing the vehicle in question, this post is very long. ...
5
votes
0answers
288 views

High acceleration and dying when brake is pressed [closed]

I have a 2003 Ford Taurus its been good, only needed a new starter and new brakes besides the standard service in the 6-7 yrs since I got it. TL;DR: High RPM in idle, need to ride brake to keep ...
4
votes
1answer
121 views

Why does the engine have lesser pulling strength when the fuel in the tank is lesser?

I've noticed a difference that when the fuel in the tank is low, it takes a bit more time for the bike to accelerate to a higher speed than if the fuel tank is mid level or full. Same thing said by a ...
4
votes
5answers
24k views

While raising the accelerator suddenly my bike's speed goes down

While driving, I faced some problem in my bike. when I raise the accelerator suddenly my bike's speed goes down. Anyone knows what is the problem?. I'm using yamaha ss 125 cc bike.
4
votes
2answers
278 views

Given the following scenario, what type of engine (diesel or petrol) allows for greater acceleration and/or top speed?

I know this isn't exactly a Motor Vehicle Maintenance & Repair related question but this seems the most appropriate StackExchange community to ask it. I apologize if I am being wrong in my ...
4
votes
1answer
142 views

Is there a car black box to help solve the mystery of Sudden Unintended Acceleration?

Drivers blame the car while car makers blame the drivers. Dozens already killed and still no clear answer to what went wrong. It seems black boxes do not sense pedal action but are installed only to ...
4
votes
1answer
16k views

Engine problem while accelerating

My car is a manual transmission car and is about 14 years old. I have recently noticed that when I am driving along in gear (ie foot is not on the clutch at all) that when I put my foot down hard on ...
4
votes
1answer
4k views

Opel Corsa D engine issue?

I have a 2011 1.4 petrol Corsa D. When accelerating the car lurches. This doesn't happen all the time and is seemingly random. It may happen when I accelerate from 60 on the motorway back to 70 or 30 ...
4
votes
2answers
693 views

Unable to accelerate after jump starting

I apologize in advance for the long question. I want to make sure I'm as detailed as possible. Today I discovered my Toyota 2009 Venza completely dead (kids left the rear passenger lights on... I ...
4
votes
1answer
2k views

Acceleration practices and wear on automatic transmission

Does a driver's acceleration practices substantially influence the wear on a car's automatic transmission? If a driver accelerates with a RPM > 3500 from stop, is this any "easier" on the automatic ...
4
votes
2answers
276 views

Mazda 3 gear drops at high speeds

I have a 2013 Mazda 3 i Touring sedan, with about 39,500 miles on it. I've had no issues with it before. And I had a mechanic look it over about 6 months ago when I bought it. This just started last ...
4
votes
1answer
352 views

1997 Infiniti J30 is sometimes very slow to get power after a full stop, otherwise fine

My 1997 Infiniti J30 is sometimes very slow to get any power when I start going from a full stop. I can put the pedal to the floor, and it will slowly creep forward for 3-5 seconds, then suddenly ...
4
votes
1answer
516 views

2004 Ford Explorer accelerates too quickly from idle

I have a 2004 Explorer/v8/4wd/bauer edition. When I take off from a stop, there is a slight lag and then the vehicle over accelerates (sort of "jumps" off the line). If I gradually apply the ...
4
votes
0answers
599 views

Engine not functioning properly at idle (cold or hot), during driving, slow acceleration, does not increase speed [closed]

I have a VW POLO (6N2) - 1.4 (60Hk), from February 2000. After the car was standing still for 2 days in a rural area close to a stream (damp environment), the car had issues with being idling. Even ...
4
votes
0answers
3k views

Acceleration problem, but only immediately after stopping

Symptoms: The following applies mainly when accelerating from zero speed at 1st gear in RPM below 2500. Above that RPM range, there is no problem (then acceleration is assisted by turbo-compressor). ...
3
votes
2answers
1k views

MAZDA 3 2006 (UK) - poor acceleration then takes off at 3250 revs

I have a 2006 Petrol Mazda 3 1.6, with 74k on the clock. I have a problem where the car is really jumpy with poor acceleration when it is accelerating from 0 up to 3250 revs, it feels like it is ...
3
votes
3answers
1k views

Difference between revving in park vs. accelerating in drive?

More specifically, what additional parts/sensors/systems are active/activated when the car accelerates vs when you revving the engine in park? How does the electrical system differ between the two? If ...
3
votes
1answer
185 views

Maintains speed when I let off the gas

My 02 impala is either maintaining or picks up speed after I let off the gas pedal. It's almost acting like the cruise control in on, so I pulled the fuse to the cruise. The problem stopped for a week ...
3
votes
1answer
21k views

Corsa D Stuttering Accelaration with Malfunction Light flashing

I have a 1.2l Vauxhall Corsa D (62 plate) that has done 63K miles. A problem has developed over the last day or two that is becoming a concern, and has got worse over the last 24 hours. Whilst ...
3
votes
2answers
229 views

Volvo V70 I stalling when accelerating too much

I've recently bought a Volvo V70 I 2.4 (106 kW, gasoline, 1998), and on the way back home from the seller the car died several times when starting from a standstill, until finally a few hundred meters ...
3
votes
1answer
69 views

Does accelerometer log data in Toyota Camry?

After car accident (rear end hit) I need data of peak acceleration. Does accelerometer log data in Toyota Camry LE 2015? How to read?
3
votes
1answer
238 views

1995 Subaru impreza acceleration problem

I recently brought a 95 Subaru impreza 1.6 ltr 5 speed manual. I put my foot down on accelerator and it spits and splutters. If i put my foot down slowly I can get up to speed, but once I'm at say 100 ...
3
votes
3answers
44k views

Ticking or clicking when accelerating

So I've had my Ford F-150 for a few years now. It's a 2001 and up until the other day it was running and sounding like new. On the way back from work I stopped at the gas station to fill up. When I ...
3
votes
1answer
333 views

2015 VW Golf TSI Standard accelerating automatically

The car keeps accelerating after shifting to 3rd/4th gear at random times. I would shift, take my foot off the pedal and the speed would, in one occasion, accelerate to 40kmh and maintain speed. The ...
3
votes
1answer
701 views

97 Sentra Slow Acceleration?

I just recently bought a 97 Sentra with less than 15k on it. I have never driven a Sentra before, so I'm not even sure if there is a problem. There doesn't seem to be a whole lot of power and I have ...
3
votes
1answer
25 views

Reproducible brief acceleration cut-out at 65mph

We recently bought a second-hand 2001 Honda Accord. Yesterday the check engine light came on while driving, and a few minutes later the acceleration momentarily cut out (resulting in a 'bump' feeling)....
3
votes
5answers
78k views

White smoke from tail pipe and loss of power when accelerating

I have a 2011 GMC Sierra 1500 V6 with 145,000 miles. For about the last 6 months or so when I start the vehicle after it's been sitting for a while, a very large plume of white smoke belches out from ...
3
votes
1answer
1k views

2015 Hyundai Sonata not accelerating

I recently purchased a 2015 Hyundai Sonata its only 2 months old and while driving on a freeway I was unable to accelerate. I was cruising at 65 mph and while trying to pass someone it just limped ...
3
votes
3answers
17k views

2001 civic won't accelerate when pressing gas petal..?

For the past few days my check engine light has been on. Whenever I try to accelerate, the car will not go very fast at all, no matter how hard I press it, all the way down, halfway, doesn't matter. ...