hello again. I have a 1998 subaru outback and i have been having problems with it. I replaced my radiator hoses and thermostat because my engine was leaking coolant from them. I have discovered an oil sludge residue in my overflow reservoir... what is wrong with my car?... im thinkin its the headgasket... again...
can i just throw in some blue devil headgasket seal to fix it? and then just flush out the oil in my car.. will that somewhat correct problems.. or is my engine done??... please help...
2007-12-17 03:10:23 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
How long ago was your head gasket changed???? What can happen is that the oil pressure is somehow leaking past the gasket material and oozing it's way into your cooling system. First of all, shampoo your engine compartment so you can see what's what. If you are using American (green) coolant, you may be creating your own problem. Subaru and other fine auto's require a special formulation of anti-freeze in their cooling system that is more gentle to the gasket material and to the aluminum (cylinder head) parts. I have seen several Japanese heads that have turned into Swiss cheese from using the wrong type of anti-freeze. If this has happened, you can certainly try to use a special additive to reseal the head gasket, or you can try to re-torque the head to attempt to reseal it. The residue you see might also be coming from leftovers in your cooling system brought on by the head gasket work you have previously had done. In that case, power flush your cooling system to remove all contaminants and then, USE ONLY THE PROPER COOLANT!!!! Also, make sure that your fan switch activates at the proper temperature to prevent overheating of the engine. If in doubt, just go ahead and replace it.
2007-12-17 08:18:57 · answer #1 · answered by Robert M 7 · 0⤊ 0⤋
in general you should use subaru OEM coolant and subaru coolant conditioner to minimize the possibility of leaks. No other coolant or coolant conditioner is recommended by Subaru the part number for the coolant conditioner is SOA635071 the part number for the coolant is SOA868V9210 I have seen some cars where a coolant issue (such as those leaks you fixed) caused abnormally high operating temperatures, and as a result the headgasket expanded and leaked some oil. After the coolant issue was resolve, everything went back to normal. Replacing a head gaskets on the 2.5L SOHC are really expensive, before you do that I recommend that you clean the coolant reservoir thoroughly, flush the coolant with subaru coolant, put in the subaru coolant conditioner, and then inspect the reservoir for oily residue on a regular basis. If you see oil in the coolant or excessive oil and/or coolant consumption, only then should you move forward with trying to diagnose and fix the headgaskers
2016-05-24 08:30:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Remove the cylinder head and have it machined and checked for cracks. There are a number of possibilities, but doing this should at least find the trouble.
Have it pressure tested while off.
Once fixed, (THEN) flush the cooling system.
2007-12-17 03:55:05 · answer #3 · answered by Wisdom 6 · 0⤊ 0⤋
i have used a ceramic seal with good luck on a honda
2007-12-17 04:32:13 · answer #4 · answered by brian45mmn 2 · 0⤊ 0⤋