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Discussion Starter #1
whats the big plastic bulb next to the battery with a vacume line going in to it.im doing my heater core and was pulling the vacume line out to get some more room and the whole nipple and everything broke off.is it for the 4x4 or is it just emmisions stuff?can i just cap it.please help....thanks oh its a 90 s10 blazer with 4.3 auto and 4x4.
 

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2001 S-10 Crew Cab
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557 Posts
I think you are refering to the Vacuum acumulator.
Without it you may have difficulites in switching the heater controls and transfercase functions.
Should run about $5 for one at the salvage yard.
 
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