Knocking sound going in reverse

[Isamu]

Hi all, would like to know if anyone has any knowledge about the following situation:

Just had a Simota CAI installed yesterday. HAd some idling problems but seems to have gone away, no CEL, no hesitation. BUT, what I do have now is a slight knocking sound when i put her into reverse. I thought it might have been the water bottle knocking something, or just the rough idle, but no.

Can't seem to find it anywhere either. Any suggestions?>

Thnx.

 

[NegatiZE]

Is the intake hitting on anything in the engine bay? Hold it still and have someone put the car in reverse and see what is making the noise.

 

[romecandleboy]

It sounds like that PCV (that is relocated near the strut tower when installing the intake) is rattling against it. If so, position it away from the strut tower.

 

[Isamu]

Ok, will have a look at the PCV, but its strange that it only does it in reverse...

 

[romecandleboy]

Ok, will have a look at the PCV, but its strange that it only does it in reverse...

Does it rattle while moving in reverse or right when you shift in to reverse momentarily?

 

[Isamu]

it starts rattling once I put her into reverse, the sound sill start even before I move