2
votes
0answers
5 views

BMW E90: Professional Radio (Alpine CD73) USB Adapter won't work

I bought an USB Adapter which emulates a CD Charger. The port wasn't used yet. When I plugged my battery the Radio worked, but I couldn't find the CD charger /USB in my radio source menu. Do I have to ...
0
votes
0answers
16 views

car will not start after you turn it off

new fuel pump, battery, starter, cables to battery. The car will start but if you turn it off. it will not start up again. What do you think it maybe.
3
votes
1answer
29 views

How do nonlinear speedometers work?

Some cars, now have nonlinear speedometers. How can they achieve to get different spacing between some speed ranges?
2
votes
1answer
18 views

Calculate current drain from the battery in a drive

Control module voltage is one of the OBD PID. It signifies the car battery voltage. Is there any way to calculate how much current is drawn in a drive (say 7 km from my office to home). The voltage ...
3
votes
1answer
14 views

Ford Fiesta Mk6 heater blower fan motor resistor location?

Does anyone know the exact location of the heater blower fan motor resistor on the Ford Fiesta Mk6 (JH1/HHJB1) ? A picture will help a lot.
5
votes
1answer
28 views

What kind of sealer should go over bondo and primer?

I have some deep scratches on my fender that I filled in with Bondo glazing putty. Feels pretty smooth. I'm planning to spray on a filler primer and sand it down this weekend before spraying the ...
5
votes
2answers
34 views

Why are the spark plugs from the same 2 cylinders corroding faster than the others?

On my engine ('99, 360 v8 Magnum), I replaced the spark plugs less than 15k miles ago, because of misfires in cylinders 2 and 8. Those two plugs were badly corroded. Today I had to replace them again, ...
1
vote
1answer
13 views

Hyundia i20 heater failure

The car heater is blowing only cold air in my Hyundai i20. I have run the car over a long distance but the air is still cold. Any suggestions please?
2
votes
0answers
27 views

Battery Draw while car is off at 3.24

I have a 2007 Saab 95 wagon... For about 6 months at random about once a month my car has been dead. After calling AAA and they told me there is a draw from the battery at apx 3.24 which is should be ...
0
votes
0answers
25 views

2000 HONDA ACCORD V6 [on hold]

I just bought the car with 143k I was getting check engine light it gave p03001 codes I replace the spark plugs with the OEM and the coils brand new now the light went away but the issue is that we ...
4
votes
1answer
25 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
268 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 ...
18
votes
2answers
1k 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 ...
2
votes
0answers
32 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
11
votes
1answer
40 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
762 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
24 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 ...
4
votes
0answers
18 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 ...
2
votes
1answer
34 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?
2
votes
2answers
22 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 ...
4
votes
1answer
33 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 ...
4
votes
2answers
44 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
25 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
52 views

Turbo shaft broken [on hold]

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
48 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 ...
5
votes
1answer
142 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 ...
4
votes
0answers
66 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 ...
6
votes
1answer
57 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 ...
5
votes
1answer
33 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
70 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
2answers
72 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
302 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 ...
1
vote
0answers
15 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
33 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 ...
6
votes
2answers
81 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 ...
8
votes
1answer
35 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 ...
10
votes
3answers
59 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
18 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
64 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
61 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?
21
votes
4answers
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
22 views

citroen c5 2007, AL4, noise when on R

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
34 views

What driving speed gives the best fuel economy? [on hold]

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 ...
0
votes
0answers
20 views

petrol providers [on hold]

Is it possible to provide petrol to the bike customer to whom having fuel end in the road while travelling. It is project module where other registered person can provide petrol to the needed person ...
5
votes
0answers
30 views

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

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
42 views

What can you expect after applying leather protection? [on hold]

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
21 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
47 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. ...
6
votes
2answers
75 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
36 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 ...

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