94 ford explorer intermittent start?

Okay so my 1994 ford explorer will crank but not start unless I have a battery charger on and press the gas peddle, I also have to keep applying pressure on the pedal to get the truck to keep running and it will idle from 600rpm to 1500rpms evendors die sometimes when i let off gas. I have replaced crankshaft position sensor, throttle sensor, maf sensor, ignition switch, fuel pump, ignition coil, eec and fuel pump relays, fuel filter, alternator and battery to no avail. I have checked gas pressure at Schrader valve, voltage on injectors, spark in wires and grounds from power relay box and solenoid also starter. I was told by my mechanic to check all grounds but I'm unable to find a wiring diagram. Any help would be very appreciative as I don't want to just keep throwing money at it. I'm almost possitive there's a short somewhere.

2004 Mercury Mountaineer hold in muffler?

I own a 2004 Mercury Mountaineer (which should be identical to a 2004 Ford Explorer in many aspects). I noticed a leak underneath the car today while it was running, and noticed a hole in the anterior (towards the front of the car) of the muffler. It is very small and appears to be directly below the input. Is this is a problem, or is it how it should be (came from the factory that way).

I ran the car in the rain this morning for a few minutes, and then parked the car for a few hours and the weather proceeded to be sunny and in the 80's, if this has anything to do with it.

Attached is a picture of another muffler that looks like the same, but from a different manufacturer
2004 Mercury Mountaineer hold in muffler - 1

New alternator and battery but battery still won't charge in my ford explorer 93?

My battery wouldnt charge So i just replaced my alternator a few days ago knowing it would fix the problem. It appears that the alternator was not the problem. I've got a brand new alternor and when i check the battery(running car), it just stays on 12.5V and doesn't go up. I tried using it yesterday and it just drained out on me. I tried 3 good batteries already and checked if they charge in my car but they don't. Oh, the alternator came with a volt regulator.

What will happen if I put diesel in my 2008 ford explorer?

My boyfriend gave me 2 jugs of gas but neither jug wuz full. I called 2 make sure I could put both jugs in it & 2 ask him if if they were both gasoline & if so why did he five me 2 separate jugs. He said no, 1 is gas. 1 is diesel but you can put it n the car because I use it sometimes in my car. It will hus clean out your car.