Ground Wires
Had the engine replaced in a 2000 ford explorer 4.0 V6 like 3 weeks ago and I don't think that they hooked up all the ground wires in the engine compartment because when you hit a bump some of the components in side the vehicle stop working and then all of a sudden they start working again that's what makes me believe that it is a ground wire ether not reinstalled or loose I just need to know were to look for them