Fuel cools Skydrol...Skydrol warms fuel....works great. Skydrol makes skin irritable....everyone's happy he he

Skydrol Ffffff stings when you get it in your eye !

I have the same problem. I keep getting an overheat and low pressure for both elec hydraulic pumps Mitch Bowman

Same thing happened to me on my first quick flight. Did a bit of digging thorugh the docs re. overheat and noticed in the tutorial that PMDG have modelled the gear lever correctly in that you have to centre it after use otherwise the hydraulics will continue running and coule overheat. Have not tested it yet but that is my best guess so far. Chris Hardy

Skydrol Ffffff stings when you get it in your eye !

Famous rumour at my work - Guy works with Skydrol. Goes to bathroom w/o washing hands first...remainder of story...well you know...haha As for no returning the gear lever to off...could be it I suppose.

Same thing happened to me on my first quick flight. Did a bit of digging thorugh the docs re. overheat and noticed in the tutorial that PMDG have modelled the gear lever correctly in that you have to centre it after use otherwise the hydraulics will continue running and coule overheat. Have not tested it yet but that is my best guess so far. Chris Hardy

You could be onto something !!

Ah Chris, I seem to recall not moving the landing gear to Off for quite some time. I was also trying to get the gear to work with my GoFlight hardware and may have inadvertantly left the gear activated throughout the flight. I've disabled the GoFlight gear lever now as it doesn't work with the 737, so I'll see if I get it on the next flight.

Actually, just done another test, and the hydraulic electric pumps are already overheating before I've even started the engines. I think it was about 3 minutes from switching them on to engine start.

I've done some more testing, and it actually seems that it's a problem with my saved flight that I was using. I've reloaded the aircraft from scratch, and so far no issues.

Same problem here, saved flight. Also noticed that the fuel temp guage is maxed out. Since the fuel is used as a heat exchanger for the hydraulic fluid this makes sense. I've reloaded the same flight a couple times, flew to different airport , saved it, reloaded, nothing. Clearing failures does not help, only reloading plane fixes the issue.

I'm having the same problem over here. I finished a flight, saved de situation and the next flight a got a fuel temp maxed out and EMDP Overheat light all the way on the next flight.

This definitely seems related to saving a panel state as that's when the problem started for me too. I used the same procedures prior to creating a saved state and did not experience the bug, but once i saved the state and used that save, boom.

After I load the panel state inflight I had the same problem. But I think it wasn't a fault of the hydraulic pumps, I think it has something to do with the fuel system. The fueltemprature indicator was far above the scale. So the fuel was to hot and the pumps weren't able to cool down. John

Hi, Same problem there with a saved panel state... The clear failure option works correctly in the menu but don't work in the facts. The 2 electric pumps are out. Regards, Richard Portier

Found fix to low pressure and overheat after several minutes of flight time, I saved a flight in FSX, you have to go and delete flight in document FSX folder ,, solved the problem with the low pressure and overheat for hyd pumps..... Ray Vlasek

I have the startup style set to "previous flight.flt" in the PMDG setup menu. Because of your tips on fuel temp I checked this file and found the saved temp to be extremely high: Fuel Temp=4294965243 Changed it back to Fuel Temp=0 and my HYD pumps are working great now :)