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02-15-2017, 06:13 PM | #1 |
Scooby Newbie
Member#: 454001
Join Date: Sep 2016
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Valve cover coolant leak???
2002 Impreza outback sport.
Losing a little coolant, smell it leaking, looked under today and the only wet spot was on the driver side head between valve cover and head. Any ideas what it could be? I don't think its possible to be from the valve cover lol. Also sometimes in 5th the temp gauge will climb to the 2/3s mark, downshift and wot always brings it down to normal. Thanks
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02-15-2017, 07:04 PM | #2 |
Scooby Specialist
Member#: 283429
Join Date: May 2011
Chapter/Region:
South East
Location: Down yonder.
Vehicle:2016 Fuji Sunfire 03 Silver |
Unless you have a milkshake on your dipstick that is improbable. Check your heater pipes at the back of the engine (drivers side) and follow the black pipe across the head to the front of the block where it drops to the water pump/thermostat. I bet you got a pin hole in the pipe or a leaking hose and it is dripping down at the VC. That would also create an air bubble and give the temp symptom.
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02-15-2017, 07:11 PM | #3 |
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region:
RMIC
Location: Denver
Vehicle:2001 2.5RS Black Diamond Pearl |
There is a hard line that runs from the water pump to the heater core right there. Look around that.
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02-16-2017, 06:14 AM | #4 |
Scooby Newbie
Member#: 454001
Join Date: Sep 2016
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My oil is good, changed it last weekend and there was a small amount of froth in the catch can but it's had all different types of fluids in it recently. That's the pipe that I suspect too but it looked dry everywhere I could see. I'm off at noon tomorrow so I'll be able to take a better look and try some things(start with new clamps).
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02-16-2017, 07:17 AM | #5 | |
Scooby Specialist
Member#: 283429
Join Date: May 2011
Chapter/Region:
South East
Location: Down yonder.
Vehicle:2016 Fuji Sunfire 03 Silver |
Quote:
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02-16-2017, 10:15 AM | #6 |
Scooby Newbie
Member#: 456880
Join Date: Oct 2016
Location: Iowa
Vehicle:2003 Ourback Red |
How's you're coolant level? If it's chronically low it makes me suspicious of a head gasket. Wife's 04 had a slight head gasket issue. Symptoms I saw were.
1. Running down the interstate it would be fine until it pushed enough coolant to run warm. We would stop and top off the coolant and be back in business for another 200 miles. 2. It was chronically low on coolant. I would dump a little in once a week and all was well. But it always pushed out coolant. 3. I kept finding a slight leak at the top radiator hose to block connection. I replaced clamps and hoses to no avail. 4. It had a slight scum in the catch bottle. Nothing bad, but brown ring in it at the coolant level. I second doing a pressure test on the coolant system. I finally found our issue by leaving the pressure on it overnight. |
02-17-2017, 06:44 AM | #7 | |
Scooby Newbie
Member#: 454001
Join Date: Sep 2016
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03-13-2017, 05:57 AM | #8 |
Scooby Newbie
Member#: 454001
Join Date: Sep 2016
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Fixed!!
Sorry for the delay but I had no news so no post lol. Changed my coolant temp sensor, Tstat and coolant (treated it to Subaru parts ). But when I was changing the cts I noticed the top of the motor under intake was green, looked around and found a small hose that connects under the throttle body. The clamp was half way down the hose and wet with coolant. Reset the clamp here it should be and all is well. Temp gauge hasn't moved since, no coolant smell and no more leak!! Thanks for the input guys. Glad it wasn't hg's lol
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03-13-2017, 09:33 AM | #9 |
NASIOC Supporter
Member#: 30669
Join Date: Dec 2002
Chapter/Region:
Tri-State
Location: USA, North NJ, 07456
Vehicle:1998 Legacy 2.5GT Silver Sleeper BK, 5MT |
Likely the throttlebody heater, some people delete that (run a length of pipe between hoses instead of having coolant heating the TB), I left mine connected.
Thanks for closing this out. Glad it's fixed, especially for free. |
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