A car is a wheeled, self-propelled vehicle. Normally, a car has 4 wheels and is designed for the transport of passengers. Depending upon locale, cars may also be called 'autos.'

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Honda civic 1.4

My daughter has a w reg Honda civic 1.4. she says there is a rattle from the back when she changes gear & also when dropping engine speed. What could it be? It is Sunday so can't find mechanic.
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4answers
55 views

How to not hit the car in front whatever the car? [on hold]

I'm designing a 3d model of a car with some specifications. The question that I thought of now and also is a good question as I don't personally know the answer while driving my own car is: How can ...
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1answer
29 views

Car horn works only sometimes and with very very low sound

My car (Suzuki Mehran) horn works only sometimes after many days and with very low sound. The problem started when I turned on car ac about a month ago. In start the horn sound became low whenever car ...
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2answers
394 views

Where is the part of the car that senses the i-key?

My car is maxima 2014. Where is the part that receives the signals from the intelligent key?
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2answers
35 views

Car won't shift after clutch replacement

I have a VW Polo Playa 1.4. I have replaced the pressure plate, flywheel, clutch cable of the car but unable to get clutch. The cable is pulling up the lever attached on the gearbox in order to shift ...
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1answer
226 views

Coolant pressure issue

I am in need of some assistance. I am having a coolant pressure on my 1.8 16v clio. (Renault), coolant, cooling-system, overheating (car maintenance) In that when left to idle and engine gets up to ...
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1answer
53 views

Water leaking through visor area into interior

My car leaks when it rains. Rain drips from the visor area. I suspect an area outside and above the windshield that is showing some rust. I also suspect that my windshield was not replaced (long ago)...
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31 views

Light bar vs Car battery

I have a light bar that pulls close to 22 amps how long can I have it on and my jeep off without hurting my battery?
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60 views

How to calculate the angular velocity ratio of a cardan shaft?

Recently this question has been bugging me, and while it might seem simple, I was not able to find a satisfactory answer. Suppose we have a cardan coupling like in the following picture, where the ...
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1answer
49 views

How can I tell the approximate real milage of this vehicle?

Looking at a 1990 conversion van with low miles ( 63,000 ). According to the owner ( who seems like honest dude ) He bought the vehicle from a collage, who uses it for one of the sports teams. ...
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1answer
24 views

2004 Volvo S60 starting issue

I am interested in buying a 2004 Volvo S60. The guy selling the car says: "It won't start. When you try to start it. its as if the battery was bad, but it's not" Does anyone know what that means? ...
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1answer
42 views

Lexus HS 250h car; a/c noise from inside the car

I am getting these kind of noise https://youtu.be/QhmK7oDX1tE Any idea what's wrong? Car details Year : 2010 Model : Lexus hs250h Its happening when I switch AC/Fan on and it last for 30 sec and ...
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160 views

Dent removal from passenger door

I have a huge dent in my front passenger door from where I was attacked by an elk. This dent has been in the door for probably 12 months as I previously did not care that it was there. Now I would ...
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14answers
11k views

Are classic cars safe?

Are classic cars safe? I am interested to know the differences between modern vehicles and vehicles of old from the 1960s. In the event of an accident, how does a classic vehicle compare to a ...
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1answer
112 views

My feet turn black

I left the pedicure salon, started my car and drove less than 3 miles to pick up something from the store, when I stepped out of my car my feet were black... and I don't meant just from dirt, It ...
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1answer
71 views

Headlight and dome light flickers

My car's headlight and dome light flickers when the car is started, but when the car is already moving light is working fine. Other lights works fine, though I wasn't able to check the tail lights and ...
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1answer
31 views

after replacing icv,intake boot,valve cover gasket and return to stock air box from CAI,car will not hold idle 325i 1994

Car will not idle after re-installing stock air box from previous cold air intake. I replaced idle control valve also replaced intake boot as well as valve cover gasket along with spark plugs, BMW ...
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3answers
2k views

Anyone know what car this is?

What car do you think this is? My guess is new 2017 VW Tiguan. Taken 8 April 2016 in Brisbane , Australia.
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1answer
66 views

Buy a new car or old car [closed]

I had recently started learning a four wheeler (Maruti ALTO) from driving school. Its some week course. After that should i buy a new car (New ALTO K10 or say SWIFT) or buy a old one as i might be ...
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1answer
104 views

How often do you need to run a car?

I have a car that is garaged and not used much. How often should I take it out for a drive and for how long each time? I currently get it serviced every 10,000 KM.
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2answers
69 views

Petrol to CNG converted cars

Please excuse if posted at wrong place. Does running car on CNG wears out engine? I am planning to buy used CNG car (India) but many mechanic advise against it for any CNG car than has run more than ...
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1answer
102 views

Why is my car showing “Trip [A]” and some different miles on odometer?

My Mitsubishi Galant started showing "Trip [A]" and also shows different miles? What does that mean?
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2answers
145 views

Multimeter to check car battery current

short background, my car battery will often be too flat to start the car if I don't use it for about 48 hours. Worst it happened the other day after leaving it at airport car park for 4 days and come ...
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1answer
114 views

How to apply brakes so there is minimal wear and tear?

I am looking to conserve energy and increase brake pad life in the following scenario - Say I need to stop 500 meters from where I am at. Assume I am a very aware and an expert driver and that there ...
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2answers
72 views

Losing coolant fast after just fixing radiator

I have just got my coolant tank and radiator replaced after a leak in the radiator and a cracked coolant tank. I filled the coolant tank last month and now it is nearly empty. I am just wondering if ...
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1answer
56 views

City Jetta Passenger Windows Unresponsive

I have a 2008 VW City Jetta. About a month ago, I had a remote car starter installed - big mistake. Upon installation, all passenger automatic windows were no longer responsive from either the driver ...
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1answer
42 views

How to maintain a car's interior when left unused?

My friend owns a five year old Skoda Fabia, which he uses once in a month or two as he goes out of the town frequently. His car is fully covered while it is parked in the garage. Recently when he ...
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2answers
74 views

Peculiar Interior Lighting Issue

Recently a friend of mine was driving a VW Fox (not new, I'm not sure what year but it was certainly 5+ years old) home in the dark with the lights on. Strangely, after a minute or two of driving all ...
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1answer
134 views

What is the effect of the throttle body on the power curve produced by the engine?

I heard from another member of this community that the throttle body, among other things, has the ability to change the power curve of the engine. What exactly is a throttle body? How might the ...
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2answers
70 views

Why might you choose to change to using an aftermarket throttle body?

I have heard that some people might want to buy an aftermarket throttle body. Is the reason for this simply to replace a broken one or are there also other specific advantages (and disadvantages) to ...
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1answer
96 views

What are slip rings with respect to a cars alternator?

This is not a physics forum, and as such I don't expect answers to explain Faraday's law of induced emf (electromotive force), which is the basic physics principle behind how an alternator is able to ...
12
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1answer
207 views

How does the tachometer on my dashboard actually work?

Recently, I asked a question about the speedometer, how it works and how accurate it is. But that got me thinking... how does the rest of the dash actually work? I understand that the RPM measurement ...
6
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1answer
167 views

How come gears don’t normally change in an automatic car?

I know that there is a similar question here, and another one here that asks when an automatic gearbox knows how to change gear, but I want to know exactly how it does that. It was brought to my ...
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109 views

What is wrong with my car?

My car had a broken piston, and broke down completely. I bought a new engine, and had it installed. everything seemed to be working aside from a low clicking sound when driving coming from the engine. ...
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2answers
207 views

How does the speedometer on my dash actually work?

So pretty much everyone knows what a speedometer is, the thing on your dash that tells you how fast you are going, whether or not you're speeding, and what speed you have the cruise control set to (...
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2answers
412 views

How can you optimise the rate at which your electronic devices will charge in the car (fast in-car charging)?

Like many people who use their car regularly, I like to charge my phone when I'm driving so that it isn't flat with I get to wherever I'm going. I know that some computers have a fast charge port ...
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3answers
108 views

How can you use the headlights to tell the quality of your battery?

I understand that all headlights do dim briefly when you turn the engine on and that this is normal. I also believe that the headlights will dim more if the car battery is in poor condition. I hope ...
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1answer
350 views

What does it mean to have a stiff first gear?

This problem is a small one and it can only occur with manual cars, but I have been curious to find out more about it for a while now. Sometimes, when the car is attempting to pull away from a ...
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1answer
80 views

How to tell if you have a bad clutch?

I drive a 2004 VW Passat B5.5 that I bought used with quite a high mileage so it has therefore had a relatively large amount of usage (at 118k miles). I am curious to know how to tell if the clutch is ...
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2answers
1k views

How exactly does a differential work?

I understand that the differential (or "diff") is the thing that allows the drive shaft to transfer its rotational velocity to the front or rear axle in order to move the car. As far as I know, the ...
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1answer
75 views

Water Powered Cars - What are these things?

Whilst looking up the answer to another question using Google regarding the water output from a normal internal combusted engine powered car, I noticed that - to my surprise - all the top hits were ...
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1answer
59 views

1995 Mercury Grand Marquis, loud whine corresponding to engine revving

My '95 Grand Marquis (or as I like to call it, a Grandma Rquis) is suddenly very loud. There doesn't seem to be any issue with the performance, and when it's idling, it's as quiet as can be. I'm ...
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3answers
393 views

What exactly is a catalytic converter and why does it need to operate within a certain range?

I heard here that a catalytic converter needs to operate within a certain "chemical range" otherwise it will generate unnecessary heat. What exactly is a catalytic converter? How does it work? What ...
6
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1answer
181 views

Alternative fuel consumption metric to MPG to measure actual engine efficiency?

MPG is all very well and good, considering that most people that are concerned about their fuel consumption tend to want to get as many miles as they can out of it before they need to fill up again. ...
6
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1answer
67 views

What exactly is meant by the phrase “plugging in your engine”?

I have found a relevant quote from here that might be related: Plugged-in engines are already half-warmed when started. Fuel consumption is thus reduced by an average of 15 per cent over the first ...
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1answer
26 views

What “type” of engine does a Ford Fiesta, 2008, style climate D, 1.4 TDCi have? [duplicate]

a mechanic asked me this and I didn't know the answer.
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3answers
2k views

Why does my RPM drop when sitting idle at traffic lights?

While I'm sitting idle at traffic lights I put the car into neutral. The engine stays idling at about 1000 RPM. However every now and then it drops down to about 500 RPM and then quickly back up to ...
6
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1answer
100 views

Why is my car so icy in the winter?

The car is a 2004 VW Passat B5.5. The last few days have been colder than usual where I live (below 0 degrees Celsius). The outside of my car has been covered in ice in the mornings and I use a ...
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1answer
205 views

How do old cars actually lose horsepower?

I have heard that when a car gets old it slowly but surely loses its horsepower to some degree. For example, I used to drive a 1997 Ford Fiesta with a 1.25L 1242cc engine that supposedly produces a ...
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2004 VW Passat B5.5 - Why are my wing mirrors being weird?

Today whilst I was trying to park my 2004 VW Passat B5.5, I noticed that something to do with my wing mirrors wasn't working quite right. When the toggle was on the left position, the left wing mirror ...