D
David John
Guest
I have a 1998 Mercruiser7.4 MP
I have a 1998 Mercruiser7.4 MPI that has a deep knocking noise when reved over 3500rpm. I was driving it at about 3000rpm and the warning buzzer went off so I shut it down. It started again but I have not been game to continue using it. Could it be the knock sensor ? any suggestions please.
I have a 1998 Mercruiser7.4 MPI that has a deep knocking noise when reved over 3500rpm. I was driving it at about 3000rpm and the warning buzzer went off so I shut it down. It started again but I have not been game to continue using it. Could it be the knock sensor ? any suggestions please.