5
votes
1answer
62 views

What is making this noise coming from the rear end of my car?

2004 Mercury Grand Marquis It starts to make a noise the faster that I go the more high-pitched the noise gets when you slow down the noise gets more low-pitched. It's coming from the rear of the ...
3
votes
2answers
666 views

Can I replace my R14 wheels/tyres with R13 wheels/tyres?

I have a Peugeot 107 with 14 inch rims. My tires are bald and require replacing ASAP. I have a friend who has a Ford Ka with 13" rims. They purchased five new tired (including the spare) less than ...
23
votes
2answers
3k views

What are the Advantages & Disadvantages of a Boxer engine?

I know that boxer engines are those which have pistons moving in the opposite direction. Also the fact that since they sit low the center of gravity is lower and causes better handling. Why dont ...
3
votes
0answers
45 views

2001 honda civic dx over heating problem

Two of my hoses in the front are very hard I took out the thermostat and the hoses are still hard and my car is still over heating what can it be
13
votes
1answer
88 views

How can I tell which parts of my car are “By Wire”?

I've recently purchases a manual transmission 1.5 Honda Mobilio. Which claimed to be a drive by wire vehicle and I assume it really is, but I don't know how to tell if a car is drive by wire. I am a ...
10
votes
1answer
810 views

Are older cars' cigarette lighters the same as modern

Do the Cigarette lighters in the older cars(like my 1986 ford ranger) have the same functionality as modern cars? For example: Should I be able to use a cigarette-lighter adapted phone charger in my ...
4
votes
1answer
50 views

Car Making Noise After It speeds up

Car(2008 Volkswagen Jetta) makes high pitched noise like a cricket after I accelerate(to about 35 mph or 3rd gear) independent of braking. The noise continues even if I come to a full stop but the ...
5
votes
1answer
865 views

What is Neo-Chrome?

Is anyone familiar with the process of neo-chrome plating and how it works? It is a different finish than burnt titanium, but seems to involve a heating method in some way to give it the rainbow ...
3
votes
1answer
52 views

stuck in park no power to dash or windows

My Honda out of the blue would not go from park and so I had to use shift lock release and I have no power to my windows or dash what would cause this?
3
votes
2answers
88 views

1990 Mercury Cougar LS stereo wire color diagram

I'm having trouble finding color coding for my Mercury Cougar. I found a diagram but it shows the stereo constant power wire is green and yellow, but there is no green and yellow in my Cougar stereo ...
5
votes
1answer
87 views

Is there any benefit in performing a 4/7 swap on an LS engine?

Based on some resources, I was able generate a list of all theoretical firing orders for an LS engine with a cross-plane crankshaft. Here they are (L,R denote which bank each cylinder in the firing ...
5
votes
2answers
140 views

What is the difference between “multi port” and “combined port” fuel injection?

I have heard these terms tossed around quite a bit and I understand that fuel injection is needed in order to inject fuel in to the engine (from a fuel rail/injectors?). What is the difference ...
4
votes
1answer
130 views

How often should I change my Nissan Sentra's (2012 model) oil?

I have a 2012 nissan sentra. Here is the manual. I looked into it but it doesn't seem to indicate the frequency of which I should change the oil. It does mention that the oil change light indicator ...
0
votes
1answer
75 views

Turbo shaft broken [closed]

Ford Fiesta 1.4 diesel TDCI There was a rattling noise. Checked and found that noise is due to damaged turbo turbine. So turbo replaced. But after replacement with new turbo and 10KMS road test, the ...
5
votes
1answer
354 views

Difference between fuel pressure and fuel rail pressure

In OBD PID wiki page, there are 2 PIDs listed: Fuel pressure and Fuel rail pressure. Are both of them the same? Can someone please give an elaborate explanation of it - What exactly are they ...
7
votes
1answer
228 views

Why do electric motors produce peak torque instantly vs gasoline engines

On a separate forum someone had asked why do electric cars do not have a transmission. The simple answer was that electric cars produce peak torque at any RPM but the gasoline engine needs to rev ...
5
votes
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 ...
7
votes
1answer
194 views

Are all drive-by-wire cars completely (brakes, clutch, gas, steer) by wire?

I've recently purchases a manual transmission 1.5 Honda Mobilio. Which claimed to be a drive by wire vehicle and I assume it really is (don't know how to tell if a car is drive by wire). I am a new ...
6
votes
1answer
74 views

Drive by wire disables steering when car is off?

I've recently purchases a manual transmission 1.5 Honda Mobilio. Which claimed to be a drive by wire vehicle and I assume it really is (don't know how to tell if a car is drive by wire). I am a new ...
4
votes
2answers
196 views

Tried to shift but failed at very high rpm how much damage did I cause

I went up to 6 rpm and then tried to shift to second gear aggressively and unknowingly the clutch was not fully depressed I think and the gear change failed of course I heard the gears grinding but I ...
7
votes
3answers
564 views

Okay to add new oil to old?

Title pretty much explains, I change my oil every 4-6k miles depending on how generous I’m feeling, however will the oil dirty oil that’s already in the sump mix with the clean oil when topping up? ...
5
votes
3answers
403 views

Are there cars that can shift to reverse even while moving?

I am aware that a car has to be at full stop in order to shift to reverse. Then I saw a video which was able to do a reverse without even stopping. Insane parking https://www.youtube.com/watch?v=...
2
votes
0answers
47 views

Volvo D13 Boost and fuel mileage problem

My Volvo diesel D13 creates boost at low RPM's at various amounts of level and at any given time; the fuel mileage has gone down by 1.5 miles per gallon. The waste gate was replaced and the computer ...
6
votes
1answer
72 views

Car manual says I have to wait a few seconds before shifting to reverse, why?

I am the type to read the owners manual of everything I buy. I am a new driver and I have just read my owner's manual. As the questions says, it's telling me not to instantly shift to revers when I ...
5
votes
2answers
188 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 ...
9
votes
1answer
166 views

How does Audi Crown Gear Center Differential work?

I'm trying to understand how the engagement of the clutches is varied. I see the power is transmitted through the center input shaft and is transmitted through the four pinion gears, but I don't ...
11
votes
3answers
182 views

Brake lights don't illuminate until pedal is pressed by about 5-10mm

2003 Opel Agila My brake lights do not light up until I have pushed the pedal down by about 1cm. If I rest my foot on the brake pedal, with the brakes applied a little bit then the brake lights do ...
4
votes
1answer
30 views

How to increse Idle Air OR Gas - 1986 ford ranger

I have a 1986 for ranger that sounds sluggish on idle not bad just not great. If I push a little on the gas the idle sounds perfect. I am wondering how I can achieve the same affect automatically?
4
votes
2answers
247 views

Start a circuit or device when you insert key in car ignition

I want to start a circuit in my car when I insert my key in car ignition and let it turn off when the key gets removed. I have Honda Civic 2007. Can someone just help me out as to from where do I take ...
9
votes
2answers
403 views

Keep Alive Memory (KAM)

What is "Keep Alive Memory" (KAM) and how is it different from RAM? From what I read over the internet, it is kept alive even after the ignition is OFF, but isn't that what a ROM is supposed to do?
23
votes
3answers
4k views

Why do pickups and large SUV's use 4x4 and generally not AWD?

In almost every case I can think of, the larger vehicles with four wheel power are 4x4, and the smaller ones AWD. As far as my experience goes, AWD is much more convenient, and also works at least as ...
4
votes
0answers
41 views

citroen c5 2007, AL4, noise when on R [closed]

Sometimes when i change to Reverse, there is strange noise from inside of the car, whats possible cause? the transmission is auto, AL4, and the noise is even if i m not moving(brake pedal)
3
votes
0answers
48 views

What driving speed gives the best fuel economy? [closed]

If you are running low on fuel in a gasoline powered car I guess driving at a constant speed is best and turning off stuff like the AC would be wise . I suppose keeping the car in a reasonably high ...
5
votes
0answers
44 views

what would cause lack of movement in the gas pedal, causing slow acceleration? [closed]

I have a 2002 Hyundai Elentra. Until yesterday every thing was fine. Yesterday I noticed the car was not accelerating normally. I also noticed my gas pedal basically had almost no movement. No ...
5
votes
1answer
59 views

What can you expect after applying leather protection? [closed]

Brought a new car with leather protection, the brochure only says lifetime protection against cracking, splitting and discolouration caused by the harmful effects of ultra violet light permanent ...
2
votes
0answers
63 views

2004 GMC Yukon Denali, intermittent no crank/no start/no noise

OK, it started doing this a few months back with no rhyme or reason. Before this happened, sometimes would start beeping after engine start. A long 18 beep procession. Don't know if related. When ...
8
votes
1answer
182 views

Disconnected wires near battery in BMW e46

I noticed a disconnected wire dangling next to the battery in the trunk of my 2005 BMW 330ci. It was actually a red and blue wire that veered off from the thick red one in the middle of the image. ...
7
votes
2answers
116 views

Driving slower at low constant rpms or driving fast to get to destination faster, which saves more gas?

As the question title says. I am a new driver and I understand that driving at higher RPMs can burn more gas faster. However getting to a destination longer would mean you were spending gas at a ...
6
votes
1answer
614 views

Ticking noise while idling that increases with acceleration

2013 Chevy Cruze. 86000 miles. Our car has been ticking while idling, and the noise gets louder and faster when accelerating. Oil has been changed regularly. Water pump was changed recently due to a ...
4
votes
1answer
83 views

What does an actuator part look like?

I found out that one of my actuators is broken. I found this part corresponding to the door that needs to be fixed. It's called 'door latch', so not sure if this contains the actuator. I'd appreciate ...
5
votes
1answer
49 views

1995 Dodge Viper

So my friend is interested in this 1995 Dodge Viper he's seen on a pre-owned showroom and I have some questions that I'd like to ask. What kind of questions related to that specific car should we ...
12
votes
1answer
210 views

What made Ferrari choose this particular firing order for their flat-plane V8's?

In other words, what factors influence an engine designer's decision to go with a certain firing order? I had some free time today to investigate what firing orders are possible on a flat-plane 90° ...
5
votes
1answer
57 views

Strange brake noise

https://goo.gl/photos/8J9acXhHpqFL3nau5 My car just started making this noise when I apply the brakes. It persists for a few seconds after but only if the car is moving. Any ideas what is wrong? ...
7
votes
2answers
111 views

No low beams but do have high beams

I have a 2008 Toyota tundra that I replaced 1 headlight on thinking it was bad but then replaced it a second time and it worked fine for 1 day and the all of a sudden now I do not have any low beams ...
4
votes
1answer
123 views

Battery light flashing after alternator install on 2004 Ford Escape

I just put new alternator on my 2004 Ford Escape, and now my battery light keeps flashing on and off, and it will sometimes stay on. The battery has been checked and is charging 100 % . The alternator ...
12
votes
4answers
2k views

Tire SideWall Damage. Replace?

Yesterday I bumped into a curb and my tire has sidewall damage. Is this tire safe to drive on? or do I need to replace this tire?
7
votes
2answers
579 views

what are the advantages of upside down forks

Recently I have come across many bikes which have upside down front forks. From browsing around the internet , I was not able to get a concrete answer for why it is preferred over conventional ...
12
votes
2answers
210 views

Car stalls/dies suddenly while driving and is not starting again

I own a Indian Make TATA INDICA Ev2 (CR4) Turbo Engine car. I did rebore recently and the mileage was 130,000 KMs. After rebore first service of 3000 km is successfully completed and now I'm facing a ...
7
votes
2answers
227 views

Hyundai i30, 1600 cc Difficulty starting

Hyundai i30 model 1600 cc Auto. diesel, now done 60,000 miles. About 10 months ago, I had difficulty starting the engine from cold. The temperature would have been in the 50 to 60 degree Fahrenheit ...
7
votes
1answer
80 views

backup lights stay on in park and switch off

I am working on a 2003 ford explorer sport trac.The backup lights stay on and I have to remove the fuse to turn them off.

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