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

2006 HYUNDAI ELANTRA
150,000 MILES • 2.0L • 4 CYL • FWD • AUTOMATIC
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CORJAMES2420
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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
Oct 25, 2015 at 2:36 PM
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ED-WEEZY21
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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.
Oct 25, 2015 at 3:48 PM