throttle body coolant passage why?

deftsound

Please ask me how much my supercharger cost

Apr 6, 2004

945

1

39

Texas City TX

Jan 28, 2008

#1

• Jan 28, 2008

• #1

Can someone explain to me why there is a coolant passage running through the throttle body?? sorry im such a noob

 

LiquidGT

Member

Oct 8, 2007

368

0

16

Near STL hell

Jan 28, 2008

#2

• Jan 28, 2008

• #2

Its actually on the egr plate. Its there to cool the hot exhaust gasses going through the egr, and in turn keep the intake manifold and tb somewhat cool.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 28, 2008

#3

• Jan 28, 2008

• #3

deftsound said:

Can someone explain to me why there is a coolant passage running through the throttle body?? sorry im such a noob

Click to expand...

its for the EGR and because chuck norris said so

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 28, 2008

#4

• Jan 28, 2008

• #4

LiquidGT said:

Its actually on the egr plate. Its there to cool the hot exhaust gasses going through the egr, and in turn keep the intake manifold and tb somewhat cool.

Click to expand...

you forgot the part about chuck norris

 

bloopbloob

Member

Sep 27, 2006

578

4

16

Alberta

Jan 28, 2008

#5

• Jan 28, 2008

• #5

back on track...

like said before, the tb doesn't have coolant passages in it. it's the egr spacer that does, and it sits between the tb and the upper intake manifold. the reasoning is apparently that even the warm/hot coolant is still cooler than the recirculated exhaust gasses that pass through the egr spacer, therefore offering a cooling effect. some dispute this idea, and bypass the coolant lines running to and from the egr spacer. i have ran with both, and haven't noticed a difference either way.....

 

deftsound

Please ask me how much my supercharger cost

Apr 6, 2004

945

1

39

Texas City TX

Jan 28, 2008

#6

• Jan 28, 2008

• #6

bloopbloob said:

back on track...

like said before, the tb doesn't have coolant passages in it. it's the egr spacer that does, and it sits between the tb and the upper intake manifold. the reasoning is apparently that even the warm/hot coolant is still cooler than the recirculated exhaust gasses that pass through the egr spacer, therefore offering a cooling effect. some dispute this idea, and bypass the coolant lines running to and from the egr spacer. i have ran with both, and haven't noticed a difference either way.....

Click to expand...

that explains why the owner before me had them both connected togethor, i put it back the way ford had it

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

5,232

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gainesville

Jan 29, 2008

#7

• Jan 29, 2008

• #7

I was always told that it was to warm the air when it was cold outside. every car I have had that was equipped with a throttlebody has a coolant line running to it somewhere. I asked around different places and I always got the same answer. I was also told that unless you live in the great white north there is no need for it.

 

SVT32VDOHC

waiting for the next hack atta

Founding Member

Nov 22, 2001

3,501

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119

Motor City

Jan 29, 2008

#8

• Jan 29, 2008

• #8

I have heard both too. Cool the EGR gas, and warm the throttle body on cold days...either way, mine is disconnected. My car runs absolutely perfect on hot and cold days. The performance is up to par for an old 91 5.0L engine and I am not gonna change a thing!! I might just replace the hoses themselves. They are the only ones that aren't new. I had one burst before at 4:00a.m. That sucked!!!!!!!!!!!

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,356

208

114

Ohio

Jan 29, 2008

#9

• Jan 29, 2008

• #9

I know on GMs the Line is there to keep the TB from icing up, but from all I have read on the 5.0 it is there to cool off EGR.

 

bloopbloob

Member

Sep 27, 2006

578

4

16

Alberta

Jan 29, 2008

#10

• Jan 29, 2008

• #10

i always run it hooked up in the winter. but i've switched back and forth several times in the summer and never noticed any difference at all either way..... just my personal experience.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

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Jan 30, 2008

#11

• Jan 30, 2008

• #11

If it was needed for de-icing, they would have kept it for Cobras and 94-95's. The EGR design was changed and the lines went away.

For de-icing, a heat-riser would be more effective quicker anyhow.