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Automotive/1989 bmw 525i vacuum leak

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Question
The vacuum leak seems to sound like its by the rear of the engine by the fuel injectors and I think it runs into the line which splits into three coming off of the brake booster

Answer
yes thats the awkward one at the back.The only way to do it right is take off the intake manifold or throttle body carefully and change all of them .Replace any gaskets you need .The hoses get hard over time with the heat and crack i have done many of them.No easy way im afraid just got to take a lot of stuff off to access it.

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Sean Halliday

Expertise

general auto repair,japanese,bmw,mercedes,mini cooper 1960/2009,general british cars,ford.I DO NOT work on automatic transmissions.Manual transissions i install clutches only.Many people ask me to diagnose noises from their cars,unfortunately i cannot do this unless i hear it.As you appreciate,vehicles can and will make a variety of noises.I DONT UPGRADE or fit aftermarket performace kits,parts,chips,only replacement parts.

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40 years experience on all general auto repair.

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