Rough Idle Due to Broken Vacuum Tee on Mazda Millenia

There are T-shaped vacuum connectors under the intake manifold that can break and cause a rough idle.

RepairPal Verified
Average mileage: 143,833 (106,000–177,000)
Engines affected: 2.3L V6 Supercharged, 2.5L V6
8 model years affected: 1995, 1996, 1997, 1998, more1999, 2000, 2001, 2002
14 people reported this problem
5 people shared problem details
2001 Mazda Millenia- 2.5L V6177,000
mechanic damaged the intake which have a vaccum leak. need to know how to repaired the vaccum leak and the cost of repair.
5 people like thisFlag inappropiate
1998 Mazda Millenia- 2.3L V6 Supercharged144,000
the dealer found the problem. Have not been fixed yet. Looking to find the tee connector at local auto parts store.
1 person likes thisFlag inappropiate
1995 Mazda Millenia- 2.5L V6106,000
Rough idle=repair pending
1999 Mazda Millenia- 2.3L V6 Supercharged160,000
the idle up when the car is hot
Car was in for service and the next day it began to idle rough. I brought it back into the shop and they identified that the t valve had become cracked and was causing a vacuum leak. The mechanics denied any wrongdoing and so I took the car to another shop to repair the issue. Not saying that they broke it but their ice cold bedside manner didn't provide enough reassurance for me to keep shelling out perfectly good benjamins to suspect mechanics. lesson learned.
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