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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 10-24-2012, 11:40 AM   #1
pookie777
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Smile vacuum leak help please

hello everyone,, im now new and trying to find a vacuum leak on my e46 2000
where the easiest vac hole i can test a smoke test with a cigar. a nice picutre of the diagram would be greatly apreciated.
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Old 10-24-2012, 11:42 AM   #2
Mango
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Don't test. Replace.

There are various known places where all E46s leak vacuum. If you maintain these items, they'll be problem free for a lifetime. See sig, click on JFOJ. Do it. Hit the back button, see sig again--do it all!

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Old 10-24-2012, 11:46 AM   #3
pookie777
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so u suggest to replace all the vac holes with testing which hole is leaking...
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Old 10-24-2012, 12:00 PM   #4
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Read the first link below in my signature. Mango has this think is his signature.

Intake boots, SAP vacuum hoses, CCV hoses and highly likely is the CCV lower oil return line. $15 part that will give you close to a dozed codes.

Valve cover leaks as well as dipstick tube and oil fill cap can be a problem as well.
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Old 10-24-2012, 12:11 PM   #5
pookie777
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wow thank you jfoj and emango really help alot bout to try it now and i let u kno how it goes
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