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Radiator reservoir replacement

Tiny
GUITICH
  • MEMBER
  • 2017 CHEVROLET SILVERADO
  • 4.3L
  • V8
  • 89,000 MILES
Is it necessary to drain the radiator of all the fluid when replacing the reservoir?
Saturday, February 8th, 2020 AT 10:04 PM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

No. Just get the level lower than the hose that goes from the radiator to the reservoir, or plug the end of the hose with a bolt or something. Take the bolt out when done and reattach the hose. In the diagrams down below I have included the instructions for the removal and installation of the overflow reservoir for your vehicle. It does call for the draining of the coolant, but like I said, just drain so that the coolant level is below the hose and you should be fine.

Thanks,
Alex
2CarPros
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Saturday, February 8th, 2020 AT 10:07 PM
Tiny
GUITICH
  • MEMBER
  • 2 POSTS
Thanks a bunch. I didn't think so but it's nice to get some pro advise.
Gary
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Sunday, February 9th, 2020 AT 4:47 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Use 2CarPros anytime, we are here to help. Please tell a friend.
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Tuesday, February 11th, 2020 AT 11:38 AM

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