Heavy Coolant Leak from Backside of Engine

[turbolag277]

I must have had a very slow coolant leak somewhere, because yesterday my coolant got so low that my car overheated. Steam was coming out if the engine bay, but my car never went into limp mode.

I let it cool off before adding more coolant. Went for a test drive and everything went great, the car sounded normal, temps were steady, and power felt great. I get home and notice a huge leak coming from the backside of the engine. I haven't been able to find the leak yet, but it's dripping down on the RMM and everything else in that area. I think it's coming from the drivers side of the engine below the intake hoses.

I was worried it was water pump, but the leak isn't near that as far as I can tell. Coolant reservoir and tubes are about 18 months old, don't see any leaks. Car is up on Quickjacks now so I'll be able to see better.

 

[sczamun]

Turbo coolant line possibly

 

[Zeille]

could be that, or could be that coolant return line that comes from the back of the block on the drivers side, goes around, and into the coolant reservoir. sometimes that can slip out or break, it's rubber to plastic. (it'll be near both the o2 sensor plugs)

 

[turbolag277]

Thanks for the ideas. It does not look like either of those. On second look, it seems like it is coming moreso from side of the engine (drivers side). There is some pooling of coolant underneath the battery. My first thought was the coolant outlet or the bypass valve, but neither of those were dripping.