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Throttle body hose

Tiny
ADAM DICK
  • MEMBER
  • 1995 BMW 525I
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Where does the three hose on the bottom of the throttle body connect to? Had noticed coolant bleeding out from the throttle body and noticed a hose was rotted off. I don't see any sign of the rest of the hose or where it connects to.
Wednesday, November 27th, 2019 AT 4:20 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

Can you upload a picture of the hose in question? I have tried to look at manuals and nothing is specific. If I see what you have, it should help.

Let me know.
Joe
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Friday, November 29th, 2019 AT 8:12 PM
Tiny
ADAM DICK
  • MEMBER
  • 4 POSTS
Everything I've found says it connects to the block but I cannot find a connection. Starting to wonder if it was capped off.
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Sunday, December 1st, 2019 AT 10:50 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Okay, now I see. If I recall you said there was engine coolant involved. Those two hoses allow engine coolant to flow through the throttle valve. It's been awhile since I dealt with them. There is a steel pipe which the return connects under the intake and the other to the engine block under the manifold. I attached the best pic I could find and highlighted them.

Take a look and let me know if this helps.

Joe
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Sunday, December 1st, 2019 AT 6:21 PM
Tiny
ADAM DICK
  • MEMBER
  • 4 POSTS
Thanks for the help. Me and one of mechanic buddies find the issue. For some reason on my car specifically this hose never had a connecting point under the manifold. It was just plugged off. Just wanted to pass this along incase someone else runs into this.
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Tuesday, December 3rd, 2019 AT 2:24 PM
Tiny
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  • MECHANIC
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Welcome back:
Glad to hear you got it taken care of. I have to be honest, I never saw one without a return. Where did you find the info? I would like to know for myself.

Joe
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Tuesday, December 3rd, 2019 AT 7:09 PM
Tiny
ADAM DICK
  • MEMBER
  • 4 POSTS
We got a hold of a BMW dealership.
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Wednesday, December 4th, 2019 AT 2:18 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi:
Okay. I appreciate you getting back to me. That is an interesting one. Regardless, thanks again and have a good holiday season.

Take care,
Joe
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Wednesday, December 4th, 2019 AT 6:31 PM

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