A computer without power is just an expensive brick!
First things first - something to hold gasoline, like a gas can.
One part of town has proven useful for random things; it may prove useful again.
It's in the upper-right side of town.
You'll find it on the far-right side of the junkyard.
Something that can transfer gasoline into our gas can, like a hose.
Now that the junkyard has been fully looted, we'll have to find junk the old fashioned way.
Try checking random people's trash. ?
You may have luck on the streets that named characters live on.
On Samantha Silverman's street, in a trash can right next to your entrance point, you'll find a short hose.
Something filled with gasoline.
There's been no shortage of cars littering the streets, making it difficult to speedwalk your way across the screen.
Try finding one with an accessible gas tank.
On the far-right side of the shopping street, a large car has a missing gas cap.
You can relieve it of its gas by using the hose and gas can on the car in that order.
Perfect - with this full can of gas, we can restore power to the truck.
Just don't forget to switch the generator on.