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Old Jan 25, 2013 | 02:32 PM
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mightymoose95
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5.0 throttle body

what is the difference between a 93 and a 88 throttle body on the 302 motor?? the 88 has two hoses coming from it just behind the IAC but the 93 doesnt. what are those to?
 
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Old Jan 25, 2013 | 03:18 PM
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That's where the lines from the charcoal canister attach, on the early trucks there is a little Y just below the TB and then a single line goes down to the can, on later trucks they either eliminated the system or used a single larger hose on the passenger side of the TB connected via the canister purge valve.

The charcoal canister filters fuel vapor from the gas tanks.
 
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Old Jan 25, 2013 | 06:01 PM
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ok awesome. makes sense now.
thanks
 
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