Most likely a vacuum leak. Check for a hose unplugged.

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May 23, 2024
12:53:14pm

John Doe Slack-jawed Yokel

Most likely a vacuum leak. Check for a hose unplugged.

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John Doe

Bio page: John Doe
Joined: Oct 23, 2010
Last login: Jun 26, 2024
Total posts: 39,040 (680 FO)

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Messages

Author

Time

I replaced a failed power steering pump on my uncle's 2004 BMW 325ci last night

jdub FORMER USER

May 23, 12:49pm

Most likely a vacuum leak. Check for a hose unplugged.

John Doe

May 23, 12:53pm

Could be a cracked or misaligned intake hose allowing more air into the engine

misterpepper

May 23, 1:44pm

It was the mass airflow sensor. If I unplug it, the car runs great. It's about $70 to replace.

jdub

May 23, 5:02pm

That doesn't sound right. The MAF is metering fuel based on how much air it

misterpepper

May 23, 5:43pm

I did remove the intake hose entirely, and yes it still runs. So, your opinion is there's still a crack somewhere,

jdub

May 23, 5:55pm

If there's a crack or a vac leak a good MAF will give bad data because

misterpepper

May 23, 6:07pm

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