What is this hose?

Tiny
DOWENS1066
  • MEMBER
  • 2003 PONTIAC MONTANA
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 240,000 MILES
This hose has a pin hole leak.
Friday, July 7th, 2023 AT 5:18 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I need to know which hose. Is it leaking anything? What does it connect to?

If possible, could you take a couple of pictures and upload them for me to see?

Let me know.

Joe
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Friday, July 7th, 2023 AT 8:58 PM
Tiny
DOWENS1066
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Let's see if this picture will come through this time.
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Saturday, July 8th, 2023 AT 9:28 AM
Tiny
JACOBANDNICKOLAS
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Hi,

The coolant hose, both a rubber hose and steel tube, is the thermal bypass hose/pipe. See pic below. Is it leaking or what is happening?

Let me know.

Joe

See pic below.
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Saturday, July 8th, 2023 AT 9:10 PM
Tiny
DOWENS1066
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Thanks! It was leaking through a pinhole sized crack. When I took it off, it was super spongy, and turned out to have large cracks in the inside radius of each corner. It was probably the original one. I got one from NAPA and cut it down just a little bit to make it fit perfectly.
Thanks again for your help!
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Monday, July 10th, 2023 AT 8:11 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

Thank you for the update, and you are very welcome. I'm glad to know you got it taken care of.

Feel free to come back anytime in the future.

Joe
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Monday, July 10th, 2023 AT 9:37 PM

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