Re: 327ci mystery

Posted by Tim Cole On 2019/6/14 20:08:52

It's probably the intake manifold gasket. To test spray throttle body cleaner, Gum Out, or anything containing toluene around the manifold. If the motor changes the manifold is leaking. Some starter fluid on a rag can achieve the same result.

After that you can do a running compression test. Put the tester in a cylinder and run the motor. Make sure to ground out the plug wire to avoid coil damage. This test will check for broken rings, sticking rings, and sticking valves.