My car makes a tapping sound that comes and goes?

The other day I was driving my car and I felt a jolt then a loud knocking sound starting coming from the top of my engine. I checked my oil and I was really low so I parked the car out oil in the car. The starts up just fine but when I driving it makes a loud knocking sound that comes and goes. Like when I speed up it stops when I slow down it starts back up again. But it comes and goes as I'm driving. Does anyone have and idea on what it could be.

My car is a 2000 ford mustang.

2005 ford mustang hard shifting?

So today I changed my oil, oil filter and fuel filter and started my car and everything it was fine put it in reverse and descending off my ramps everything fine no leaks. So about 2 hours later i go for a test drive and when i shift into reverse it like takes a second and then sort of jerks into reverse, i don't think anything of it.

so go for my drive and everything is fine, come home put it in park and then back to reverse and it does it again but never does it for drive.

so i go inside and google it and nothing good comes up and i read something where if you shift to N first then reverse it goes like butter so i did that and yes like butter.
do you think if i do that i'm doing anymore harm to the tranny or am i prolonging the life on it?

i have the 5r55s tranny it has 90k on it and had 61k i had a tranny fluid change. It never slips gears or anything and gets all scheduled maintenance. I do push her alot and do alot of 0-60 times. And like i said this is the first time it has ever happened and i didn't really think much of it until i read some horror stories online.

Added (1). if i just get a tranny fluid change do you think it would solve the problem, they do say to change every 30k?

2005 Mustang GT not starting. Bad full pump driver module?

2005 Mustang GT not starting. Bad full pump driver module?

Added (1). I checked the fuses and the fuel pump (replaced 3 years ago) and they are fine. The alternator, battery are all good. Fuel filter is fairly new. Fuel pump does not prime however. Car turns over but won't crank. Inertia switch is not triggered and not defective. Spark plugs were replaced about 4 months ago. Car has 86K miles.

Added (2). The engine turns over, but it will not start.

I just replaced my car battery a week ago, and my car shut off on me yesterday, what is the problem?

I just replaced my car battery a week ago, and my car shut off on me yesterday, what is the problem? - 1

Added (1). I drive a 2006 Ford Mustang GT, and a little over a week ago my car was having problems with the battery. It first happened when I was driving one night then my radio shut off, then my headlights proceeded to shut off along with my dash lights. Then you could hear stuttering in my engine and the exhaust. I turned off my car and tried to turn it back on and my engine stuttered for about 1-2 seconds followed by a bunch of rapid clicks. Replaced the battery and it happened again a week later.

Added (2). I replaced the battery a week ago and it was running fine then it did all what I had previously mentioned when it was messing up before. My radio and dash lights turned off, then my headlights turned off. My traction control and my ABS light came on, then my engine started to stutter then finally shut off. Even with a new battery.

Added (3). Quick Update: So every time I jump start my car, it'll start, but then shut off about a minute later. It's day time so I have no use for my headlights, but my radio will turn off then all my gauges will go down as if the car were turned off. If I allow the jump start to charge my battery for 15 minutes, it'll run a 5-7 minutes longer, but then shut off again. So is this an indicator that it's my alternator?

2013 Ford Mustang sport mode?

My mustang has a sport mode (S on the shifter column). And I have the option of manually shifting with the plus and minus buttons on the shifter. My question is do I have to manually shift? Or can I pop it into sport mode and drive it like an automatic? In other words can I drive it in sports mode without having to shift gears manually and have the car do it itself?

Dodge Charger vs Ford Mustang For first car?

I'm having a hard time choosing between a Dodge Charger or a Ford Mustang as my first car can someone tell me which one is better and list pros and cons. Best answer gets 10pts.