I have replaced my 5.7 GXI-J this year with a new long block. Essentially a new block and heads. I transferred over intake manifold, distributor, ECM, fuses from old engine. New motor placed in boat and all hooked up. I went to start initially, fuel cell charges and primes, hear the traditional three beeps then quiet. Engine turns and fires for a second then dies.
I have double checked all electrical connections, but nothing obvious stands out. Does anybody have any suggestions on what to look at before I give up and take it to the dealership for diagnosis.
I have double checked all electrical connections, but nothing obvious stands out. Does anybody have any suggestions on what to look at before I give up and take it to the dealership for diagnosis.