Throttle body coolant bypass?
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Senior User
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From: Iowa
Throttle body coolant bypass?
Is there any harm in bypassing the throttle body's coolant passage? What is the reasoning for having the coolant run through the TB anyway?
Will you gain or lose horsepower if you bypass it with a piece of hose (or simply plug both galleys)?
Will you gain or lose horsepower if you bypass it with a piece of hose (or simply plug both galleys)?
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Joined: Feb 2004
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From: North Bend Washington
it's been described in shop manuals as an EGR plate cooler. i guess it's supposed to cool EGR gasses as they enter just behind the throttle body and maybe it also keeps the throttle body itself warm.
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From: Iowa
Originally Posted by Ford_Six
It's there to prevent ice formation on the throttle body. Without that, you could run into some problems with ice on cold, humid days.
Just like the heat riser for the carb on my '54
After I took some of the air plumbing off the truck the other day, I realized that it's not a big deal to unhook this passage for removing the TB. I won't spill a whole lot of coolant or anything.
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