Have your motor mounts checked for cracks or breakage.
Normally this is caused by warped brake rotors.
On fuel pump in the gas tank.
in the gas tank
With your hand.
35 gallon
Yes.
Yes.
20 gallons is average
Press the set buttons for hour and minute.
The gas gauge is done by a blue wire on the fuel pump.
If shaking ihappens as you pick up speed could be worn U joints, loose or broken motor mounts for starters. If at idle could also be and engine issue due to timing problem, emission control issue, burned valve or ignition problem causing misfire or dead cylinder.
under the van near the gas tank