by Magiccandle on July 16th, 2008

Magiccandle

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How do I do the testing for a bad egr vaulve for an 89 olds cutlass?

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  • by chrisbt629 on July 17th, 2008

    chrisbt629

    Make sure all vacuum hoses are hooked up correctly and in good repair. Hook up a vacuum pump to the EGR valve and apply a vacuum. If it holds vacuum good. If it leaks vacuum, not so good. Don't use gas or solvents to clean the valve as they will damage the diaphragm.

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