Get a UV dye kit. They work amazingly well, and they're a lot cheaper than a trip to the shop.
I have this one:
But there are cheaper options out there. The one I have came with different types of dye for coolant, refrigerant, oil and hydraulic systems. Basically, you clean the engine as best as you can (it doesn't have to be perfect), add a small amount of dye to the engine through the oil filler cap, and run the motor for a few minutes. Put the goggles on and light up the suspect area with the UV flashlight. The source of the leak will be very, very apparent.
I initially thought this stuff was snake oil until a friend of mine who is a professional mechanic showed it to me in action. I find this to be an invaluable tool when chasing leaks.
Blue-ish 2006 2.4, Werks stage 1 turbo, Borla cat-back, DDM braces, Spec aluminum flywheel, Spec stage 2 clutch, Werks aluminum radiator, some gauges, RKSport hood, Morimoto FX-Rs, GReddy Profec, Norm's fenders
'07 GXP, RPM Stage 2, Solocatless downpipe, TCE Wilwood 6 piston front brakes, 4-piston rears , Stainless brake lines, slotted/drilled rotors, BC Racing BR coilovers, Performance Autowerks intercooler, DDMWorks CAI, charge pipes and braces
Last edited by raygun; 04-18-2019 at 12:01 PM.