TB Hose ID Please?

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BlueCrush
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TB Hose ID Please?

Post by BlueCrush »

What are these two hoses (located with thin red arrows) going into the throttle body for and where do they go to. There is one at the top ofthe throttle body:And one at the bottom of the throttle body:Thanks,Brian
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tnpartsguy
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Post by tnpartsguy »

The top hose is marked "Fuel Rail Injector Feed" The lower hose is marked "Throttle Body Heater Inlet" The part it goes to is marked "Valve, Idle Air Control"There should be a 3rd hose beside the lower one "Throttle Body Heater Outlet"
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BlueCrush
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Re: (tnpartsguy)

Post by BlueCrush »

I don't see the third one. Where is that one located?
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tnpartsguy
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Re: (BlueCrush)

Post by tnpartsguy »

Should be beside the other lower one. They mount in a V into that block.
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BlueCrush
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Re: (tnpartsguy)

Post by BlueCrush »

Ahh, yes found the third one. Now which do each of these three hoses do? what is their purpose?
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tnpartsguy
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Re: (BlueCrush)

Post by tnpartsguy »

The top one feeds fuel from the TB to the Injector rail. The bottom 2 carry coolant to heat the TB so it doesn't ice up. I was kinda surprised to see this, as most cars use an electric heater now. But anyway, that's what they are, and they are all needed for the car to run properly.
Current Ride 2015 GMC Terrain SLT
2nd Vibe 2006 Vibe AWD Stealth Monotone "Recon" December 2005 MOTM
Original Vibe: 2003 AWD Abyss Monotone "Darth"
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BlueCrush
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Re: (tnpartsguy)

Post by BlueCrush »

Excellent! Thank you for the lesson in Throttle Body Hoses 101.
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