I also replaced a corroded cable end and put in a new battery

Sounds like broke timing chain but everything is ok

I need to replace the valve but can not locate it, I was told it was on top of the intake manifold, on the right side near the distributer cap. But the wires for the plugs go under the port fuel injection manifold on the left side of the engine. (Pass side) I must have been quoted a fix for a different year or engine. The codes say the purge valve is not responding, it's only a 12.00 part, but I can't locate it. I'm told by the original owner that the SES light has been on for many years, almost since he bought the vehicle.

After traveling for 1-1 1/2 hours it starts running like it's running hot

Why is there a buzzing sound in the fuel lines of my truck?

What I have found to date:
- When alternator is unplugged, the sound disappears (brand new alternator)
- When fuel pump relay is unplugged while running, pump continues to run but vibration changes pitch (relay gets warm when inserted)
- Fuel gauge has started acting funny (starts low and works its way to where it should be)
- Only seems to be bad on IDLE
- runs normal
- confirmed on stethoscope sound is only in fuel lines, predominately the return line
Any help would be greatly appreciated! I am very confused.

Also replaced fuel filter and it was completely clogged. And about a month ago my buddy crossed the jumper cables while trying to jump me off. And it melted the postive wire in half on my side. Don't know if that has anything to do with it

Is there an o ring that goes on hydraulic line connector that slips over nipple connection on the bottom of the clutch master cylinder then is held together using a retaining pin? I know there is one on the end of the line that connects the line to the slave cylinder, but not one seen for master cylinder.

Like I say it sounds as if you are listening to it thru a tube that is first covered then uncovered many times. At speeds only tho

Freon level is good compressor clutch and fan engauge properly no leaks cooliant lines are cold to touch all fuses are good cools a little when first turned on then gets HOT constant flow of hot air coming from under dash water in radiator is also good