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Old 02-28-2015, 08:33 PM   #1
Scooby Newbie
Member#: 388125
Join Date: Apr 2014
Chapter/Region: MAIC
Location: westminster, md
2002 wrx wagon

Default 06 impreza 2.5i probable head gasket leak

my sisters car (about 185k miles) is showing signs of a leak but is maintaining oil levels. i took a look at it today and and the top of the heads are dry. underneath there seems to be some oil leaking, driver side does look like there is a mix of coolant and oil and passenger side just oil. is there a possibility there is something else to look for since there is still oil when checked regularly? any thoughts will help so i can take the necessary steps to fix this.
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Old 02-28-2015, 11:06 PM   #2
NASIOC Supporter
Member#: 274613
Join Date: Feb 2011
Chapter/Region: E. Canada
Location: Ontario, Canada
2008 Impreza 2.5i


HG leak will push coolant into oil or oil into coolant depending on the spot where it fails first, you just gotta keep on top of checking both fluids. Oil will turn light brown, kinda like chocolate milk, and coolant will turn from the nice green to poopy brown (or blue to poopy brown)

HG job will require you to pull the engine and do some work (HGs in the car is really hard, the bolts are like 7"). Luckily if you're mechanically inclined, the parts are relatively cheap. both HG's and new head bolts will run about 200-250$, and then just a bunch of your time.

If you know that it's going to be an issue, I'd order the parts now if you're gonna do it yourself, and then find a convenient time to do the work. With an engine hoist and a friend (hopefully you're both car guys ), you can probably do it in a weekend. If the car starts overheating, or you start blowing white smoke in exhaust, it's time to start planning the work.

In the shop, this job will cost 1000-1500$.

Also, this would be a good opportunity to do any work needed on your timing belt (pulleys, gears, water pump, tensioner){$150 , shop:+$500}, valve cover gaskets {$40, shop:+$100}, spark plugs + wires {$50, shop: +$100}, and cam seals {$8, shop:+$100} if you haven't already

Last edited by perds; 02-28-2015 at 11:38 PM. Reason: price
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