water line to throttle body - needed?

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Feb 25, 2023 | 08:00 PM

#21

will O

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Joined: Feb 2023

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Carbon buildup, the water helps it from building up carbon

Quote:

Originally Posted by TA-Swede

Ditto on it not being needed. (Mine is disconnected)

However, I can't help but to wonder why it's there in the first place. I can't see that it does anything for emissions, so my next guess would be that it helps for those with cars in colder climates...

The water keeps carbon from building up in the exhaust, but I have seen where it will go bad and it will mess up the Cadillac converter‘s

Feb 25, 2023 | 10:00 PM

#22

G Atsma

TECH Senior Member

Joined: Jun 2016

Posts: 22,295

Likes: 3,619

From: Central Cal.

Quote:

Originally Posted by will O

The water keeps carbon from building up in the exhaust, but I have seen where it will go bad and it will mess up the Cadillac converter‘s

Not quite. They are to keep the throttle body from icing up in cold climates, one reason why most guys delete these coolant lines as they are not really needed in most areas.
The TB does not affect the A/F ratio, so a rich mix won't happen, and the CATALYTIC converter is not affected.
You really should read up a bit more..... Cadillac converters??? Right.....
Besides all this, you replied to a FOURTEEN YEAR old thread....

Feb 27, 2023 | 08:52 PM

#23

the_merv

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Joined: Mar 2006

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From: The Beach...

Some people are new to the internet, and to the world apparently...

Quote:

Originally Posted by will O

The water keeps carbon from building up in the exhaust, but I have seen where it will go bad and it will mess up the Cadillac converter‘s

Chemistry lesson bud....
Combustion of anything results in CO2 and H2O at minimum, there's your source of water in the exhaust, not from the engine coolant. If you think the steam line on the TB injects it into the engine, yea...

Oh, and Catalytic Convertor..