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Old 09-13-2014, 08:36 PM   #1
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Default Need help identifying a part

Hello all! Grateful for this wonderful forum!

I need help identifying this particular line. It is right under the radiator and up towards the right side of it (looking towards the windshield) and runs towards the left side of the serpentine belt.

This particular line is leaking coolant and I need it replaced ASAP. It'* a black line and I put some duct tape around the leaking part as a temp fix. I also will be replacing the radiator and was wondering if there is anything I should know before doing this? I tried looking at step by step videos on youtube but there is none for the radiator.

Thanks everybody!
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Old 09-13-2014, 08:49 PM   #2
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The only line that small that has coolant running through it is the line that goes from the overflow at the neck of the radiator, and the overflow bottle.

It looks like it could also be a vacuum line, but if there is coolant running through the vacuum lines, there is a very big problem.

Windshield washer lines are also that small, but shouldn't be in the area you mentioned.
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Old 09-13-2014, 09:33 PM   #3
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Hmmm, then maybe I mistook it for leaking. That general area is leaking and it is coming from the bottom where the radiator sits. If no hose around there contains coolant than maybe the radiator was just leaking so bad it was overspilling and was leaking on top of that line causing me to think it was leaking. Idk, when I saw it it was at the parking garage at my school so I didn't have much light. I just saw coolant leaking from that spot and I figured it was that line.
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Old 09-14-2014, 11:43 AM   #4
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That is not a coolant line. That is your EVAP vent line that runs from the fuel tank up to the charcoal canister.

What the problem really is, your leaking coolant from your radiator and it just so happens to be leaking onto that EVAP line.
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Old 09-14-2014, 12:03 PM   #5
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Good call Mike, pretty sure all of the coolant reservoir overflow tanks have soft rubber tubes on them, not hard plastic like that, it is definitely the EVAP line.
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Old 09-14-2014, 07:38 PM   #6
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Quote:
Originally Posted by Mike1995 View Post
That is not a coolant line. That is your EVAP vent line that runs from the fuel tank up to the charcoal canister.

What the problem really is, your leaking coolant from your radiator and it just so happens to be leaking onto that EVAP line.
Yes I think this was what was going on as well.

So we took out the old radiator and it had a decent sized crack at the top left that was causing it to spill coolant down and onto the EVAP line. We replaced the radiator so I can my Bonneville again! Thanks everyone!
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Old 09-14-2014, 09:33 PM   #7
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Thanks for letting us know what you found out, and did to fix it.
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