My upper radiator hose came of. The clamp was still on the Hose. Its is no sign the hose being broke. I put the holes back on but they are signs of some smoke what is from the radiator but not sure where is the holes with the radiator can't tell. anybody have any idea what's going on.

 

You need to replace your front and rear engine mount. The motor is rocking back and forth when you touch the gas pedal. That causes the rad hose to be pulled on. Hence it coming off. You need to replace them before it grenades your transfer carrier. Ask me how I know that one....

 

Wrong thread

 

The motor mounts are a common problem on pacificas. Upon acceleration, the motor gets thrown back and the hose gets detached