Ninjacheezit Posted April 2, 2019 Share Posted April 2, 2019 Welp yet another problem with my 2007 Legacy gt >.<. I travel for all over for work. Before leaving for 3 days I put coolant in my radiator and overfill tank because it was low when I bought the car bout 3 weeks ago. Upon returning I noticed the overfill tank was empty. Didn’t worry me at first. I went to take my car to Subaru to get the rear diff clip I was talking about before replaced and going up a hill I noticed the usual maple syrup sweet smell of coolant burning. Didn’t see any smoke from my hood or tailpipes. When I got there and walked around the car I noticed the smell was coming from the tailpipes. Like I said this all happened after letting it sit for a few days. When I get back from this week of work and pick up the car anyone have any suggestions where to look? Surprisingly I didn’t get a chance to check my oil cap wasn’t thinking straight at the time. Do these cars have any coolant lines that fail often? Or should I go straight to looking for head gasket failure. The engine in the car is remanufactured but it’s from LKQ which online doesn’t look like their engines have a very good track record. Link to comment Share on other sites More sharing options...
moral hazard Posted April 2, 2019 Share Posted April 2, 2019 Get one of these and check for hydrocarbons in the coolant: https://www.amazon.com/Lisle-75500-Combustion-Leak-Detector/dp/B0007ZDRUI Also try to perform the bleeding procedure to remove air from the coolant system. If the stream of air bubbles never stop I'd suspect head gasket. You could do a few cheap things like bypass the heater core (just in case it's blocked), replace the radiator cap and thermostat. But other than its likely the headgaskets. Link to comment Share on other sites More sharing options...
apexi Posted April 2, 2019 Share Posted April 2, 2019 Yeah I'd be kind of curious to know how a hydrocarbon test goes Link to comment Share on other sites More sharing options...
Max Capacity Posted April 2, 2019 Share Posted April 2, 2019 Check the weep hole on the bottom of the water pump. My Gates pump was dripping from there. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
gimpydingo Posted April 4, 2019 Share Posted April 4, 2019 The hydro test didnt reveal anything will my hg leak. I replaced the coolant and while burping it kept a steady stream of small bubbles, I could never burp it. Had the mech tear into it and yep hg and cracked heads. Link to comment Share on other sites More sharing options...
alex843 Posted April 4, 2019 Share Posted April 4, 2019 Had that issue a while back. For me the radiator was coming apart under the air intake duct. Plastic end caps coming off. Link to comment Share on other sites More sharing options...
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