Page 1 of 1
7.4 gi random issues
Posted: Mon Jul 10, 2023 9:59 am
by itllbefine
So I am at the Ozarks for vacation and thought I had everything done and in working order. Start the boat up and runs great, then starts to loose power and sputters, turn the boat off for 1-2 min start it and lay into throttle and good to go again??? It might run good for 10-15 miles or maybe a couple hundred yards. Any input would be great. Not really worried about being stranded, but annoying when we are trying to have a nice cruise and have to slow down, stop and reset
Re: 7.4 gi random issues
Posted: Mon Jul 10, 2023 10:36 am
by dustinm
Change fuel filter? That would be my start. I would then dump out the old one in a container to see what comes out
Re: 7.4 gi random issues
Posted: Mon Jul 10, 2023 5:03 pm
by itllbefine
Filter has maybe 1 hr on it
Re: 7.4 gi random issues
Posted: Sat Jul 15, 2023 6:51 pm
by coolbreeze255
Sounds like a fuel issue.
I believe your engine is fuel injected. If so, you might check the fuel pressure to make sure your fuel pump is keeping up with the engine's demand. Make sure it's within specs. If not, it's most likely your fuel pump. Also, you could try cleaning your injectors. But if your engine is running great, but then dies, then it's most likely your fuel pump.
Also, how old is the gas? If it's really old, even with fuel stabilizer, the old fuel might be getting kind of thick, jelly-like. In that case, your fuel lines might be clogging up like a clogged artery. In that case, you might have to drain your tank and flush the line. Hopefully, that's not the case.
Best of luck to you.