Question about 1997 Chevrolet Venture

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I have a 1997 Chevy Venture 3.4L V6. Since buying the van last year I had the head and intake gaskets replaced due to overheating and mixing of oil and coolant. I have been driving the van for about 5 months since the replacement and I am having trouble again. The van tries to shut off and is difficult to start. When it does start it idles very rough until it warms up. Just today I've noticed steam from the driver's side engine area. I can't tell if it is coming from the engine or in the area behind the engine along the firewall. Also when I noticed the steam there was the milky mixture again in my oil pressure cap. Could the gaskets have been improperly replaced? Will replacing them again help the problem? Also if this will not help the problem would changing the motor be a reasonable cost for the age of the vehicle?

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Sometimes the head gasket blows from too much back pressure caused by blocked exhaust or cat. convertor. This will happen if the heads were not checked for warpage & cracks. Also if poor quality head gaskets were used &/or improper torquing precedure, this problem will occur. It may be wise to get a complete long block that has been rebuilt & warranted for at least a year. Make sure you have no exhaust restrictions because antifeeze in the exhaust will wreck the cat. convertor. Good luck with your rebuild!

Posted on Aug 20, 2010

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Posted on Jan 02, 2017

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1 Answer

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