rough idle

[ajcampen]

Blue stabil not red. I like valvtect product best

[Ronald]

bought new set of plugs this morning ac delco how much do I need to gauge them some said 40 m some said 60 m what is better for v8 380 2014

[thunder550]

Have you changed the fuel filter/water separator? If you had some bad gas something may have gotten stuck in there. I had an issue when I first got my boat where it would run fine until I stopped and drifted for awhile, then would start up and idle out of no wake zone, and as soon as I went to take off the engine would sputter and die, it would take a few minutes of cranking before it would restart. Changed fuel filter and no more problems.

Might be best to wait until you get the laptop on it, if there's a misfire somewhere that will tell you where. That way you're not throwing parts at it and just hoping for the best. I'm also assuming the newer engines will show fuel pressure through the scanner, anyone know?

[jhnmdahl]

Things like plugs and filter he will want to change anyway should be fine, but I might not throw things like plug wires in until the shop gets a code reader on it.

Edit - Aslan makes a good point - change fuel with the fuel filter.

John

[AsLan7]

Have you changed the fuel filter/water separator? If you had some bad gas something may have gotten stuck in there. I had an issue when I first got my boat where it would run fine until I stopped and drifted for awhile, then would start up and idle out of no wake zone, and as soon as I went to take off the engine would sputter and die, it would take a few minutes of cranking before it would restart. Changed fuel filter and no more problems.

Might be best to wait until you get the laptop on it, if there's a misfire somewhere that will tell you where. That way you're not throwing parts at it and just hoping for the best. I'm also assuming the newer engines will show fuel pressure through the scanner, anyone know?

.

I agree thunder. Still seems fuel related with the intermittent running during different Boat attitudes.—like water sloshing around somewhere. Gas tank, fuel filter, etc.
Changing plugs and fuel filter is an easy diagnosis and should be done at normal intervals anyways.

Laptop will diagnose fuel pressure. Marine tech diagnosing mine:
.

[Ronald]

im a happy puppy now I change the plugs for the acdelco and it runs good now i' m still going to check for ethanol in the tank and keep,the stabil close by at fill up time and when storing the boat ,i gap the plugs at 60m like you guy said on the forum ,i thank all you guy for helping me, be safe, I will post some pics later

[AsLan7]

im a happy puppy now I change the plugs for the acdelco and it runs good now i' m still going to check for ethanol in the tank and keep,the stabil close by at fill up time and when storing the boat ,i gap the plugs at 60m like you guy said on the forum ,i thank all you guy for helping me, be safe, I will post some pics later

Hey! Great to hear Ronald!!!

All we ask is for some pictures in return.
.

[thunder550]

Awesome!!

[Big Block Power]

Very cool. Congrats.oh did some of us say pictures and hang with us.

[thunder550]

Oh yeah don't forget pictures! And also pictures. Oh, and last but not least pictures!

[AsLan7]

...did anyone mention pictures?? (I think we are addicted to them)
.

[thunder550]