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Old 03-16-2007, 06:44 PM   #1
Matt_Fontenot
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1996 SC2
Question 96 SC2 Need Help Diagnosing Problem

Yesterday while driving thick plumes of exhaust started coming out the tailpipe, and the car started running rough both at idle and while driving, but the temperature gauge was no where near the red. I do not see any oil in the coolant or vice versa. The coolant level is not low, and there is no water in the oil. Almost everyone I have talked to say that it's the head gasket or the head, but I have read that the head gasket and head on the DOHC are very reliable. I guess I'm just hoping that it's not the head gasket I was quoted around $1000+. Could it possibly be anything else or should I just face facts?

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Old 03-16-2007, 06:55 PM   #2
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Default Re: 96 SC2 Need Help Diagnosing Problem

Quote:
Originally Posted by Matt_Fontenot View Post
Yesterday while driving thick plumes of exhaust started coming out the tailpipe, and the car started running rough both at idle and while driving, but the temperature gauge was no where near the red. I do not see any oil in the coolant or vice versa. The coolant level is not low, and there is no water in the oil. Almost everyone I have talked to say that it's the head gasket or the head, but I have read that the head gasket and head on the DOHC are very reliable. I guess I'm just hoping that it's not the head gasket I was quoted around $1000+. Could it possibly be anything else or should I just face facts?
Is the ECTS (engine coolant temp sensor) changed? If not, even it's not related to your problem it's good to replace it with the new style. Search for "ECTS" in how-to section of the forum.

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Old 03-16-2007, 07:13 PM   #3
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Default Re: 96 SC2 Need Help Diagnosing Problem

What color was the smoke? Could you tell what it smelled like?

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Old 03-16-2007, 07:26 PM   #4
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Post Re: 96 SC2 Need Help Diagnosing Problem

A fuel injector stuck open might be a possibility. Do a compression test or better yet a leak down test. Look at the condition of the plugs. Are they oil soaked, fuel soaked, etc?

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Old 03-16-2007, 09:53 PM   #5
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Default Re: 96 SC2 Need Help Diagnosing Problem

The exhaust was gray/white, and it smelled slightly like something was burning. Not a sweet burning smell just a slight burning smell.

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