The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Missing on the 6,8 I have done everything. Please help

billnorman · 12-22-2010, 05:03 PM

Double righto on the blown head gasket. also, check the valves to see if they all move the same distance, if #6 or#8 has a tight intake or closed exhaust it may be killing the adjacent cylinder. How do you know those 2 are bad? Seems that a bad intake gasket could be causing this, spray the intake near the cylinders with carb cleaner see if the RPM goes up. See if you have a vacuum tap in the manifold that's leaking.

12-22-2010, 05:03 PM	#13
billnorman Registered User Join Date: Mar 2009 Location: glen burnie md Posts: 174	Re: Missing on the 6,8 I have done everything. Please help Double righto on the blown head gasket. also, check the valves to see if they all move the same distance, if #6 or#8 has a tight intake or closed exhaust it may be killing the adjacent cylinder. How do you know those 2 are bad? Seems that a bad intake gasket could be causing this, spray the intake near the cylinders with carb cleaner see if the RPM goes up. See if you have a vacuum tap in the manifold that's leaking.