Coolant in throttle body?

Reply Subscribe

Thread Tools

Search this Thread

Mar 7, 2017 | 08:10 AM

Lith ium

Thread Starter

Honda-Tech Member

Joined: Mar 2017

Posts: 12

Likes: 0

Coolant in throttle body?

D16Y7

I know this is probably a noob question, but I just took out my throttle body to clean it and two little hoses attached to it had coolant in them.

why is that?

Mar 7, 2017 | 08:30 AM

tony_2018

Fish Twig

Joined: Nov 2005

Posts: 15,554

Likes: 309

From: Still hunting that foo up there

Re: Coolant in throttle body?

IACV is connected to the throttlebody.

Mar 7, 2017 | 08:46 AM

agb22

Honda-Tech Member

Joined: Nov 2016

Posts: 63

Likes: 2

Re: Coolant in throttle body?

Automatic? I believe that model has the Idle Air Control Valve attached to the bottom of the throttle body. Its mainly there for cold weather climates, to warm up the throttle body and keep the throttle body plate from sticking.

Mar 7, 2017 | 09:35 AM

Lith ium

Thread Starter

Honda-Tech Member

Joined: Mar 2017

Posts: 12

Likes: 0

Re: Coolant in throttle body?

^ manual
So apparently it's on both. And thank you for the explanation!

Mar 7, 2017 | 09:58 AM

Craft Matic Man

Trial User

Joined: Mar 2017

Posts: 1

Likes: 0

Re: Coolant in throttle body?

The IACV only controls idle speed on engines that are fuel injected. On some cars the throttle body has a water jacket in it to help warm the TB in cold weather. I've seen a cracked TB or bad gasket cause coolant to end up there. O-ring gaskets are notorious for that.

Hope that helps a bit,
CMM