I've got a intermittent idle issue taking place on my 04 LXI with a 340 Monsoon engine.
Not seeing any issues running at speed, just idle and low speed forward gear.
Here's a couple videos:
(trimmed the 1st video, stumble happens ~4 mins apart)
(occurs at 30 seconds and 8 minutes)
In the last 10-15 hours, the boat has new plugs, wire, fuel filter and distributor. I've also checked for codes and am coming up empty there.
Given the quick fuel pressure drop takes place when it happens, I'm leaning towards it being a fuel pump issue but wanted to see if anyone else had a different thought.
Have an appt with the dealer on May 12th but would love to solve it before then.
Thanks in advance for taking a look!