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What are some of the best ways to test for a leaking intake manifold gasket. I have a miss during highway accerating. Thanks
Spray 2+2 around the intake manifold to see if the RPM's (idle) increase or decrease. If it makes a difference in the RPM's, you probably have a vacuum leak.
Common Problems > GMC Yukon
Q&A > GMC > 1999 GMC Yukon
Q&A > GMC > 2001 GMC Yukon
Q&A > GMC > 2000 GMC Yukon