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Coolant System: o-ring on inlet tube not sealing fully

Tiny
CORJAMES2420
  • MEMBER
  • 2006 HYUNDAI ELANTRA
  • 2.0L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
Hi, I noticed a leak coming from behind the water pump on my car engine block, where the inlet tube connects into The back of the water pump housing and is sealed by an o-ring. I replaced the O-ring with OEM from dealership and cleaned the housing well, put everything back together and started the engine. There is still a slight leak/drip coming from that O-ring seal.

Any ideas what I'm doing wrong?


Thanks,
James
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Sunday, October 25th, 2015 AT 2:36 PM

1 Reply

Tiny
ED-WEEZY21
  • MECHANIC
  • 248 POSTS
Theres only going to be 3 reasons why that would be leaking. You either have another bad seal, or maybe it moved while reinstalling and isn't sitting properly. You either have a cracked water pump around the area of where the seal should be and the coolant is getting past it. Or lastly, you might have a cracked inlet tube. Really, theres no other reason why it would be leaking.
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Sunday, October 25th, 2015 AT 3:48 PM

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