Dshow
Petty Officer 1st Class
- Joined
- Jan 1, 2007
- Messages
- 313
Hi all,
I have a 2001 5.7L Mercruiser (sn 0M080869) with throttle body injection. Yesterday, we had a boat full (4 adults & 4 teens) to go tubing. Ran great for about 45 min. We stopped to exchange tubers and would not run again. Initially it would crank and fire, but when I tried to give it gas, it would die. Then, after a couple attempts, it wouldn't fire at all. It seemed like it was starved for fuel... I kept an eye on the temp guage and didn't see any overtemp but it was hot in the engine compartment... (I was prop'd very low, when pulling, RPM was ~3500 but speed was only 15-20 MPH.) I let it sit for for a few minutes (not very long, 8 on the boat...) and still would not start, so we go a tow to the ramp. When I got home an hour later, it started right up... I looked at the contents of the fuel/water seperator and it looked like all fuel. Today, it started right up again. I let it idle for a 5 min or so, and ran fine. I have a scan tool (didn't have it on the boat...) and there we no codes. I originally thought it was my fuel pump because it has sounded like crap on prior starts, but I can still hear the pump and it ran today...
Any ideas on what could have caused this or what I should look at when this happens again?
Thanks
I have a 2001 5.7L Mercruiser (sn 0M080869) with throttle body injection. Yesterday, we had a boat full (4 adults & 4 teens) to go tubing. Ran great for about 45 min. We stopped to exchange tubers and would not run again. Initially it would crank and fire, but when I tried to give it gas, it would die. Then, after a couple attempts, it wouldn't fire at all. It seemed like it was starved for fuel... I kept an eye on the temp guage and didn't see any overtemp but it was hot in the engine compartment... (I was prop'd very low, when pulling, RPM was ~3500 but speed was only 15-20 MPH.) I let it sit for for a few minutes (not very long, 8 on the boat...) and still would not start, so we go a tow to the ramp. When I got home an hour later, it started right up... I looked at the contents of the fuel/water seperator and it looked like all fuel. Today, it started right up again. I let it idle for a 5 min or so, and ran fine. I have a scan tool (didn't have it on the boat...) and there we no codes. I originally thought it was my fuel pump because it has sounded like crap on prior starts, but I can still hear the pump and it ran today...
Any ideas on what could have caused this or what I should look at when this happens again?
Thanks
