I'd be checking around the air tank to make sure the air supply to it hasn't been popped off?
A good clean up needed then and a thorough examination of air lines and airbags. 👌
Maybe loosen it and faf with it a little. The proof will be when you warm the engine and check your work👍
Are you sure the o-rings are correct for the application? 🤔
As long as the collars on each pipe sit against the black plastic they are are home. The aluminum collar should be sat equally across the pipes in relation to the black plastic receiver 👍