Thread: Secondary air system question on a 3.0i
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Old 06-28-2018, 01:50 AM
e39_touring e39_touring is offline
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Quote:
Originally Posted by kevinkay View Post
make a cheap "harbor fright" smoke test, thats what I did.....
https://www.youtube.com/watch?v=AsgB9eBl58I
Spot on, I hooked up a smoke machine, and got smoke pouring out of that intake elbow even though it looked fine visually. That smoke machine sure is a handy tool!
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