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Old 12-14-2011, 07:43 AM   #7
TxZHP04
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Join Date: Feb 2006
Location: DFW
Posts: 5,728
My Ride: ESS TS2+ ZHP
Quote:
Originally Posted by Sean172 View Post
How do find a vacuum leak?
A professional smoke test is your best bet. Sometimes you can find these leaks through visual inspection or strategic spraying of volatile fluids around the engine bay. Plenty of discussion of this topic including a thread on how to build your own smoke machine, you just need to search them out. Cracks in the intake boot between the MAF and TB are pretty common as are cracks in the numerous hoses attached to the intake manifold. A leaking DISA gasket is also relatively common.
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04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump
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