throttle body coolant tube broke
#1
03-10-2010, 06:57 AM
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#2
03-10-2010, 08:32 AM
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Supposedly, the coolant passage on the throttle body is to keep the throttle body from freezing up in cold weather. If you were on a cold snowing/raining/otherwise moist day this could be a concern as the throttle body could get condensation on it as that moist air hits a cool metal surface. It could cause corrosion on the steel or aluminum that would prevent smooth operation of the throttle plates.
Of course, this is all speculation and it is your choice in repairing or plugging it off...
Of course, this is all speculation and it is your choice in repairing or plugging it off...
#3
03-10-2010, 10:24 AM
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#4
03-10-2010, 10:42 AM
Senior User
I have had mine removed for two winters here in N. Ohio. I did have a tube between the hose ends and laying up against the throttle body; but, then it looked like heck and when the engines cold and pumping cold coolant????; does it really help? Maybe its important in the tundra region. Anyways I have had no driveability problems.
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03-10-2010, 02:41 PM
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#7
03-11-2010, 07:49 AM
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#8
03-11-2010, 11:57 AM
Post Fiend
#9
03-11-2010, 04:52 PM
I researched it a while back and the general consensus was that it was better for fuel atomization if it was connected. I figure the factory made it that way for a reason.
If I remember right. Its primary purpose was to keep the TB from icing up. Subford said that its better to leave it connected.
If I remember right. Its primary purpose was to keep the TB from icing up. Subford said that its better to leave it connected.
#10
03-11-2010, 05:43 PM
Post Fiend
#11
03-11-2010, 05:56 PM
I believe thats what some of the seasoned FTE members said it did. There have been more than a few threads about it over the years. I don't know if it really does anything or not.
https://www.ford-trucks.com/forums/8...nt-bypass.html
https://www.ford-trucks.com/forums/8...nt-bypass.html
Ford says hoses are there to give more power as warm air will vaporize the fuel better.
You already have the more O2 from the stock cold outside air at this point so now you need to warm it.
They are not for throttle body icing, if the throttle body was to ice up it would do it long before the water temperature got up high enough to melt it.
Also the throttle body is not made with a venturi like it was with carburetors that drop the air temperature and cause icing between 33-38 degrees on humid days. So no air temperature drop with the throttle body and no icing.
You already have the more O2 from the stock cold outside air at this point so now you need to warm it.
They are not for throttle body icing, if the throttle body was to ice up it would do it long before the water temperature got up high enough to melt it.
Also the throttle body is not made with a venturi like it was with carburetors that drop the air temperature and cause icing between 33-38 degrees on humid days. So no air temperature drop with the throttle body and no icing.
#12
03-11-2010, 06:07 PM
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i think i am "seasoned" enough to say what i said.
think about it:
in cold climate this may help vaporize fuel but if the engine is hot and the air around it is also hot then the warm coolant would not be needed.
after the engine is warmed up the additional heat from the coolant will not help it and in fact may hurt it.
i am in ohio now but while living in l.a. i bypassed my corvettes coolant lines to the t.b. and it ran better then it did with it hooked up.
hope this clears my view of this up for you.
think about it:
in cold climate this may help vaporize fuel but if the engine is hot and the air around it is also hot then the warm coolant would not be needed.
after the engine is warmed up the additional heat from the coolant will not help it and in fact may hurt it.
i am in ohio now but while living in l.a. i bypassed my corvettes coolant lines to the t.b. and it ran better then it did with it hooked up.
hope this clears my view of this up for you.
#13
03-11-2010, 06:17 PM
#15
03-11-2010, 06:52 PM
Senior User
I considered the pipe thread and hose fittings to make a repair; however I weighed it against breaking the tap off in the Throttle body or cracking it and decided not to try. I removed the hose fitting on the intake standpipe fitting and plugged that. Then removed the T-fitting in the heater hose and replaced with longer hose. I used a piece of the T-fitting-bracket to cradle the hose to the alternator bracket as original.