Chevy Blazer
Chevy Blazer S-10

How do you fix a vacuum leak on a 2000 Chevy Blazer?


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2013-06-14 05:33:30
2013-06-14 05:33:30

Need to know the location of the vacuum leak in order to answer this.

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Start with looking for a vacuum leak.

I have a leak on my drive shaft left front 2000 cheve Blazer I would like to replace the whole unit

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You failed to mention the model year but a large vacuum leak could do that.

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A vacuum leak can do that. Check the gasket at the base of the throttle body for leaks. It was common for that gasket to crack and allow a vacuum leak. With the engine running, spray carb cleaner around the base of the throttle body. If the idle changes briefly while you are spraying that area you have found the leak.

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The controls that direct the air flow to the defroster, to the vents and to the floor are vacuum operated. You may have a vacuum leak causing your problem. Check under the hood for broken, cracked, disconnected vacuum lines.

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A vacuum leak could cause that. Check the gasket under the throttle body for a vacuum leak. It was common for that gasket to crack apart with age.

First you have to locate the source of the vacuum leak then you can determine what steps to take to stop the leak. Determine the source and re-post your question with more info.

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