Intake manifold movement?

[alm001]

This happens on mine. The boots between the manifolds are rubber, and under vacuum they will contract.

[Gilles]

Will is saying that the intake manifolds are moving away from each other ?, this means that one of them could be loose, but if you have a worn engine/tranny mount both manifolds will move along with the throttle body (and engine..)

[alm001]

Originally Posted by Gilles

Will is saying that the intake manifolds are moving away from each other ?, this means that one of them could be loose, but if you have a worn engine/tranny mount both manifolds will move along with the throttle body (and engine..)

Right, moving away from each other under throttle. So as he presses the throttle manifold vacuum level goes down, and the manifolds move apart.

[WillH]

https://youtu.be/8_ADUbIiaP0
Sorry I can't embed for some reason...

[WillH]

I'll find the torque value for the manifold bolts and give them a check on Friday. I would assume that if they were that loose to allow movement that it would throw a code...

[Gilles]

Originally Posted by WillH

I'll find the torque value for the manifold bolts and give them a check on Friday. I would assume that if they were that loose to allow movement that it would throw a code...

Will, I would also check the engine and gearbox supports.

[WillH]

Originally Posted by alm001

This happens on mine. The boots between the manifolds are rubber, and under vacuum they will contract.

So does yours react the same as my video? Can't figure out if this is trompe l'oeil or if there is an issue here. I'll take measurements at rest and under vacuum...
Friday or Saturday morning...