Engine Problems

[joeregal]

Out Saturday and Port Engine (8.1 Volvo OSI XDP)
was cutting out, missing, and backfiring. Felt a lot like it might be water in the fuel but starboard engine operating fine. Haven't switched out fuel filters this season. Any ideas? Have asked dealer to put a scope on it.

 

[pdecat]

hummmmm you suspect the filter but decide to first pay the shop to scope it. why not pull the filter?

 

[Canada]

Dawntreader with same boat and engine(s) had a problem on our trip with one engine cutting out.

It would refire and then cut out again.

Turned out to be a loose connection / wire in the main wiring harness behind the dashboard.

Sorry not mechancial per se so that's the best I can offer.

 

[PleasureTime]

A very similar problem on my 3560 8.1L Gi turned out to be a loose connection where the battery cable connected to the starter. The cable is routed through a rubber boot that made it seem tight but in fact it was loose enough to cause the engine to cut out, apparently when temperature was just right.

 

[joeregal]

Thanks to all for the input!

 

[j-d]

Problem doesn't always have to be the Hot wire. Could also be one of the many ground attachments is loose. Always check both.