Q:I changed all the bad fuses, then I changed the switch, then I tested the motor by hooking up a 12V battery pack, and it worked just fine up and down. What else could be the problem and how do I test it?Also, the window and the door lock mechanisms don't work on the passenger front door, even from the master control on the drivers side door.

the window has a plastic belt on it behind the door panel that has broken or the teeth on it has stripped out.You can get the parts anywhere now.

Q:I check the fuses and they are good.

Look under the seat and remove the water bottle you dropped and is blocking the mechanics.

Q:Hi my first visitI have been having problems with battery drains lately. Overnight the voltage of my car battery drops from 12.4 to 11.8 and if I leave it more than 3 days it will not start (11.5 to 11.2). On idle and load it is near 14.2. So I feel alternator is charging well.I am about to start pulling fuses to locate drain but was wondering if an alternator that is starting to die (but will still charge) can cause battery drain. Can the diodes in alternators draw current from the battery?Thanks

full charged battery's are 12.4- and up not 13.8 only, that guy sounds like a rude know it all. and yes it can, there are allot of thing inside the alternator that can go bad and drain the battery. if you want to do it the easy way get it tested at an auto parts store, they can tell you. if you would rather do it your self, use to volt meter and pulling fuses, but I suggest putting it on the amps setting and use and use the ground post and terminal. because if you accidentally ground out the positive side you could blow fuses, cause shorts, other kinds of damage, or get shocked. but of you ground the ground. well you'r grounding a ground and nothing happens lol. and don't let people tell you that you have to go to collage to change it or rebuild it. if you look the info up and just put you'r head into it there is no reason you can't do it or at least try. people that tell you that are just smart mouths and the world is full of them. my brother didn't go to school to weld and he is the best welder in this town and my uncle is a very respected mechanic and he didn't go to school for that either. I'm the first man to go the collage in my family and i still have to ask the older people around for advice allot. all school is, is a way to get a peace of paper, take it from me, there was some people in my class that would do more damage then they fixed. and they graduated too. anyways Hope you get it fixed.

Q:I know it's loose because if I wiggle it the amp turns off. how can I properly adjust this without injurying myself or ruining frying my amp. do I really have to remove the fuse or since it's only the ground can I just untighten the screw on the cap and then slide the wire back in and tighten it back on the ground? thanks.

If its the ground wire that is loose you can just tighten it. It is the positive wires that you have to worry about because you cant have to watch so you don't short it out.

Q:I got infinity kappa 6.5 Components and infinity 6x9 kappa both are 2 ohm speakers, dual 7 inch touch screen tv radio has a 15 amp fuse, mtx jack hammer 4 channel amp which is rated at 400 watts rms x 4 @ 2 ohms birth sheet states 480 rms @ 2 ohms x 4, 800 max birth sheet states 895 max @ 2 ohms x 4 and has 2 35 amp fuse, and rockford fosgate tweeters ran of the radio 22 rms. just bought a die hard platinum battery and upgraded my ground and power cables under the hood with 4 awg cable. two 4 awg cables to the alternator and 2 to the ground and engine block one to the fuse box all 4 awg. my lights dim as the bass hits in idle should i get a capacitor or high output alternator?????????

Get an alternator b/c your battery is being drained faster than it should. If u can upgrade to 140-160 amps that should do it. A small cap just to the bass amps might be a benefit as well.

Q:I have a friend with a 1993 Chevy Lumina and it will not charge the battery for some reason. He just replaced it with a new alternator and had it checked to make sure it was good at the store he bought it. When we jump it off with another vehicle it cranks fine and runs.but then when you drive down the road it will die if you step on brakes.then try to crank it.and it is deadwill not crank.like a dead battery. We had the battery all charged up as the battery is only 1 year old. Even bought a new battery. Why won't this thing charge? It there some kind of other electrical component keeping it from charging properly? What about fuses or some other regulator or realy somewhere? The engine on it by the way is a v-6 and a 3.1liter.

There is an alternator fuse in the under hood fuse box . If that is not blown check the battery wire on the back of the alt for battery voltage .

Q:Hey,Ww have a DC to AC converter so we can use our laptop and charge our cells on the road. The casing fell off the converter, and my mom and sister told me that it was stuck in the front power port (or point as the manual calls it) of the van.One day I decided to go out with a pair of hemostats and try and remove the plug. Little did I know that power was still running to the power point inspite of the engine off. Once the hemostats were inserted, there was this huge ark (tons of sparks) so I made sure everything ran properly and said that I would get the part out at a later date.Today I looked and it turns out no part is stuck in that power port, but it is dead. The fuses for the front and back port are okay along with the cigar lighter.I thought I could go pick up a new port from the dealership, but my mom thinks the wiring is fried, but if the voltage got that high, wouldn't the 20 amp (max of 240V) be fried?Anyone know what could be wrong? Is it the wiring or port?Ty!

Im sure it would be the wiring or a fuse. I would check for a fuse under the dash and also there should be a main fusebox in the engine bay next to the battery. If it was the wiring then it would have shorted at the weakest place (or smallest gauge wire). When something like that happens you need to be carefull. There is no telling what kind of damage might have been done to other electrical components in the vehicle. Hopefully that was the only thing affected and you wont see any more problems come up later on. I would suggest having a diagnostic done on the electrical system just for good measure. good luck.

Q:During the battle of Gettysburg, the gunfire was so intense that several bullets collided in mid-air and fused together. Assume a 4.91 g Union musket ball was moving to the right at a speed of 248 m/s, 20.3° above the horizontal, and that a 2.96 g Confederate ball was moving to the left at a speed of 282 m/s, 16.0° above the horizontal. Immediately after they fuse together, what is their velocity?

For this problem, you'll have to use conservation of momentum in both x and y direction. For x direction - m1v1 (x) +m2v2(x) (m1+m2) V(x) 4.91*248*cos(20.3) -2.96*282*cos(16) (4.91+2.96)*V(x) solve for V(x) here. V(x) would be the x component of the vector (as asked in the question format). Similarly conserve momentum in y direction, and solve the problem.

Q:changed battery, changed alternator, about a month later, same problem,, the battery is a maintence free sealed one, the alternator new, what else could it be,, it smells like sulfur again

if it,s overcharging then it must be the voltage regulator.

Q:I have a 240 watt car amp and every time i put my ground wire in the fuse blows and the only other thing i have hooked up is my power no speakers or remote just the ground and power can someone please help me?

I think because your ground wire is cross, get a cheap meter and check the ground wire is right, when you buy it they will tell you how to check, and its easy