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post #1 of 13 (permalink) Old 03-25-03, 02:09 AM
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EBII weird prob.....

Hey, hope someone can help me out, heres wats going on...car is fine to warms up, then temp gauge rises to just under red then drops back to blue and then floats slightly up and down, heavy coolant loss but cant see where its going, had the pressure checked its holding it fine but can open it the `next` day and theres still pressure there but harldy any coolant....oil mix is not milky (not using anti-freeze), and it cuts out a cyclinder after it warms up........sounds like cracked head but some signs point against it.....any help appreciated, had two mechanics look at it(500..00 bucks) and its exactly the same..................thx

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post #2 of 13 (permalink) Old 03-25-03, 03:54 AM
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Just because the oil isn't milky doesn't mean the gasket isn't blown. It may be leaking into a cylinder and evaporating when the cylinder fires. Do you have any steam coming out the exhaust? There is a test that mechanics can do to see if there is any exhaust gas present in the coolant. From the symptoms you are describing, it deffinately sounds a lot like a blown head gasket or cracked head.

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post #3 of 13 (permalink) Old 03-25-03, 03:54 AM
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Any signs of coolant on your block? Stains or anything?

I'd probably suggest it was the head, espec. if its loosing coolant. Try all your hoses as well.

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post #4 of 13 (permalink) Old 03-25-03, 11:19 PM
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definately sounds like a head problem

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post #5 of 13 (permalink) Old 03-26-03, 12:35 AM
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thx for the info, no sign of coolant leaks anywhere, actually took radiator out and put it back in again, double checkin hoses they all seem ok....also installed a new thermosta, but still doing it...
post #6 of 13 (permalink) Old 03-26-03, 04:45 AM
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Another indicator of a cracked head or head gasket problem.

On a cold startup, does your engine run rough for a few seconds then clear up?

If so, it's likely to be trouble. When you park the car for the night the cooling system is still pressurised and forces coolant into the combustion chamber through fractures in the head or leaky head gaskets. The engine eventually cools down and the cooling system is de-pressurised to the point where no more coolant is forced out. Because it's overnight enough water will gather in the combustion chamber to cause a rough start up.

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post #7 of 13 (permalink) Old 03-26-03, 09:09 PM
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how much does it cost do replace a head gasget? i got a small leak, not bad, but about half a overflow tank in about 2-3 months?
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post #8 of 13 (permalink) Old 03-26-03, 10:04 PM
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Around $1000 for a good job, sometimes more. But if you do it yourself, or get someone with some knowledge to give you a hand it would cost considerably less. Most of the cost is in Labour.

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post #9 of 13 (permalink) Old 03-27-03, 05:05 AM
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Make sure you have a dual acting thermostat fitted; using a single acting t stat will cause these symptoms.

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post #10 of 13 (permalink) Old 03-27-03, 11:51 PM
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thx for the replies....it actually starts up real good, not rough, its after it warms up, the ride changes and gets shakey....when i changed the thermostat the old one was a single i think(much smaller) but theres the duel one now and makes no difference....its driving me crazy..............
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