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Coolant leak from the reservoir?

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Old 03-11-2024, 12:30 AM
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jeanpxrk
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Default Coolant leak from the reservoir?

I’ve been having this coolant from the passenger side. The weird thing is that it drips from the wheel well/fender trims.

I put dye and no leaks were found under the hood not even any of the hoses. Could it be that my reservoirs got a crack in it?

How common do these things crack anyways?
Old 03-11-2024, 05:38 AM
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Lawandorder
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Plastic reservoir cracks on the bottom of the tank are extremely common. I’ve had to replace mine twice.

easy fix. Drain, replace with a new one from rockauto and refill.
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Old 03-11-2024, 08:38 AM
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Tron Z
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Age, as well as hot / cold cycles eventually causes plastic to become brittle and crack. Rubber components (belts and hoses) also deteriorate for the same reasons. This is not unusual for a 20+ year old vehicle.
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Old 03-11-2024, 02:40 PM
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MSG C5
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Common issue. Replace with a new reservoir and cap and consider it a good run for a 20+ year old piece of GM plastic.
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Old 03-11-2024, 08:13 PM
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jeanpxrk
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Thanks for all the help everyone!

currently an apprentice at a dealer and so i’m still second guessing my diagnostic skills!
Old 03-13-2024, 09:57 AM
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Tron Z
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Originally Posted by jeanpxrk
Thanks for all the help everyone!

currently an apprentice at a dealer and so i’m still second guessing my diagnostic skills!
When you are just starting out, there is no such thing as a stupid question. That is especially true working at a dealer, where you won't see too many old cars.
Old 03-13-2024, 05:53 PM
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UstaB-GS549
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I had same thing. It was leaking from the seal on the cap.
Old 03-15-2024, 10:59 AM
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redzg
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Just be sure to order the correct tank for your year — there are two versions with a different level sensor.

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