jguarniere
Cadet
- Joined
- Sep 1, 2003
- Messages
- 9
My 1997 MerCruiser 7.4LX is currently experiencing a serious drivability problem. A few weeks ago, the boat started to lose power occasionally (once every 10-15 minutes), but only for less than a half second before recovering fully. This only occurred at high engine speeds. Last week, however, the problem became more frequent (once per minute), and more severe (loss for up to 1 second). It now occurs at lower engine speeds as well (down to 3000 rpm). Since the boat sat winterized/unused for two years (2000-2001), I replaced the fuel filter this weekend (no help). I also ran fuel injector cleaner through the engine a few weeks ago, after the problem started. The engine runs, but very erratically at this point. Any ideas regarding what I should check next?
