Hi All,
I have a question on my 1997 Crusader 434XLI. I am having an issue with the STBD engine occasionally bogging down (2x per year) after a long run. Twice when heading on 40+ mile trips the boat has run great, however when i throttled down to an idle speed and then tried to bring it back up to cruising speed, the STBD engine would bog down at 2100 rpms to idle. (and could never get back up to cruise).
When i got to a dock, i have replaced the racors, (both engines and both clean). then on my trip home the boat would run great, and i couldnt replicate the issue if i tried.
Well the issue came back when running the boat on another 90+ mile trip. I ended up talking to the former owner and he said that the issue came up and his mechanic indicated that it was a MAP sensor issue. (not sure how they determined that but he did tell me that he replaced the fuel pump in the process of troubleshooting..ouch)
When i checked the MAP senor, the ground terminal was had a lot of rust and buildup on it. (see attached pictures) I ended up cleaning the terminals with emory cloth and some anti corrosive electrical spray. The issue has not come back since...knock on wood. My question is...does this make sense to be the issue? would cleaning up that terminal really be the solution to this issue? any help or commentary would be greatly appreciated!
I have a question on my 1997 Crusader 434XLI. I am having an issue with the STBD engine occasionally bogging down (2x per year) after a long run. Twice when heading on 40+ mile trips the boat has run great, however when i throttled down to an idle speed and then tried to bring it back up to cruising speed, the STBD engine would bog down at 2100 rpms to idle. (and could never get back up to cruise).
When i got to a dock, i have replaced the racors, (both engines and both clean). then on my trip home the boat would run great, and i couldnt replicate the issue if i tried.
Well the issue came back when running the boat on another 90+ mile trip. I ended up talking to the former owner and he said that the issue came up and his mechanic indicated that it was a MAP sensor issue. (not sure how they determined that but he did tell me that he replaced the fuel pump in the process of troubleshooting..ouch)
When i checked the MAP senor, the ground terminal was had a lot of rust and buildup on it. (see attached pictures) I ended up cleaning the terminals with emory cloth and some anti corrosive electrical spray. The issue has not come back since...knock on wood. My question is...does this make sense to be the issue? would cleaning up that terminal really be the solution to this issue? any help or commentary would be greatly appreciated!
Last edited: