One of 2 things is happening here. Either the ignition system is crossfiring from either from incorrect wire placement or a problem in the ignition system or the other possibility is that the engine is hydrolocking from coolant leaking into the cylinders. That engine had a known problem with bad intake manifolds leaking coolant into the cylinders. You would need to pressure test the cooling system to find out.
Thursday, April 25th, 2013 AT 2:42 PM