Migs87421

So check this out fellow G's. Unknown that I was leaking coolant my heater hose connector tube broke. I replaced it with no problem. I filled the car with coolant only for the coolant to slowly leak from the bottom of the driver side. It's a 2011 g37x coupe. Any suggestions or ideas where it might be coming from?

ILM-NC G37S

iTrader: (3)

Did you check all of the hoses and clamps top-side? Heater hose, throttle body, etc.?

You will have to crawl under the engine (engine OFF and COLD) to look for signs that coolant is leaking from the water pump "weep hole." I marked the general area for where the weep hole should be in the following pics:



Good luck.

Migs87421

Thanks brotha. That's exactly where it's coming from. Thanks for the verification. Greatly appreciated. Would you say it's an easy DIY task or should I take it to the dealer?

ILM-NC G37S

iTrader: (3)

How easy of a DIY task it is depends on your skills. For the most part, replacing the water pump on these engines IS NOT a easy job because the entire front of the engine has to be cracked open just to get to the pump.

The water pump is circled in yellow. This thread will have a little more info and pics for you to look through.

If you are not able to do the job, I would shop around for reputable Nissan repair shops. The dealership would be my last option. Also, depending on mileage, you will have to check the condition of the gallery gaskets, chains, guides, tensioners, and shoes considering you will already be in there.

I would strongly recommend that if you do have to replace the water pump, make sure it is OEM (p/n: B1010-JK20A) and not some chain-store knockoff. OEM water pumps are made by Aisin and they are highly reliable pumps.

Edited to add: just checked and the OEM water pump is ≈$80 from Orland Park Infiniti as of 27 July 2023.

mummy2

I would just throw in a bottle of Stop Leak.