Sensors reading air temp are not reading actual coolant temp or affected metal temp. The sensor is sitting in an air pocket which appears cooler than the surrounding metal because air does not transfer heat as effectively as coolant/water.
20hrs later and I’m still battling this issue. It takes three or four outings for the issue to present itself as cloudy drive oil (I pull the props and start to drain).
Still no oil leaking out, just a bit of water being sucked in from somewhere.
Each time I see milky oil, I change it. That’s...
Check the main grounds, too. The problem being contained to one bank, plus the persistent temp sensor codes may suggest a ground issue confusing the ECU. I think your main ground location is port side back of cylinder head.
oops, nope, didn't see that attachment.
I assume you replaced the whole assembly, not just the pump motors?
I don't think you have O2 sensors on a 2008, but that can cause bank to bank mixture issues when one goes bad.
Possible your fuel cooler float seat is leaking.
The float is there to allow fuel vapor to escape to the port side of the intake manifold to be burned.
When the seat seal goes bad from ethanol degradation, raw fuel is allowed to pass to the intake manifold, too. Symptoms include all the ones...
With the help of my phone camera I was able to see the bottom of the exchanger clearly and darned if 24 of the 25 cooling channels in the feed area weren't clogged with grit and mud. I'm surprised the temps were under control as much as they were with such low flow.
With the help of a metal...
Thanks. Can you guys confirm the direction of flow with the raw water system? Gimbal to thermostat housing to exchanger to raw water pump to exhaust? The pump pulls through the exchanger?
I popped the top off the exchanger this morning and found some plant debris covering some channels. Will...
2014 V8-380-CD.
Closed cooling.
My marina gets to less than 2’ of water at low tide. When docking yesterday, I had my first overheat event after expecting it to happen someday after all these years of docking in shallow muddy water.
Alarm sounded while at idle speed and I immediately saw the...
Ok, seems like I jumped to conclusions regarding the regulator being the failed part on the pump,
It’s most likely the float assembly in the fuel cooler cell.
The needle assembly tends to gunk up preventing the float from shutting off fuel to the vent, which connects directly to the intake...
I agree, but this is the diagnosis from the authorized VP service center. Is this even possible?
For what’s it’s worth, since this is a returnless fuel injection, pressure modulation is done by an integral regulator at the fuel pump. So if the regulator failed, it means whole pump replacement...
Been battling a bad misfire issue on my 2014 V8-380-C-D. Rich codes on both banks, you can see the short term trim pull fuel on both banks as soon as the O2 sensors come online. Oil getting lots of fuel contamination. Raw fuel on spark plugs.
Threw in the towel and decided to let a local VP...
For what it’s worth, I was able to get my engine to fire by doing an oil change. The original issue is still there, a bad misfire condition when warm, and that apparently was causing a lot of unburned fuel to accumulate in the oil to the point where there was not sufficient oil pressure during...
