Closely examine the entire length of the fuel line to see if there are ANY pinhole fuel leaks. Even the slightest amount of fuel seepage will result in a vacuum leak and that would cause the fuel line to suck air when the vehicle is facing uphill. If it's a small leak the action of the fuel pump could eventually overcome the leak, driving any trapped air out.
reverse and set the parking brake.
In a downhill area, you should always park with the front wheels toward the curb. The theory is that if the brakes malfunction, the car will move towards the curb and stop, instead of going downhill, gathering speed and causing an accident.
keep hand brake
hi it sounds like your fuel pump is leaking and when its facing downhill the fuel runs out the pipe causing a air lock but when its uphill fuel is kept in the pipe line. i think there is a rubber diaphragm inside pump that is replaceable hope this is of help
turn your wheels toward curb
The handbrake is used to stop a stationary car rolling downhill. The transmission can also stop a car from moving when parked.
Your front wheels should be turned so that, if your car were to roll it would turn into the curb. If your car is facing downhill, the front wheels should be turned into the curb. If your car is facing uphill, your front wheels should be turned away from the curb.
Have your votlage output on your alternator checked? Have your votlage output on your alternator checked?
turn your wheel to the curb and pull your hand brake on and leave it in gear
when you think the temperature is going to reach 0 degrees Fahrenheit or colder at a time when your vehicle is parked outdoors. Regular diesel fuel will get too thick to feed into the engine at very cold temperatures.
Diesels are kept running while parked for various reasons. In cold weather, a diesel may be very difficult to start so it is better to leave it running. Maybe the engine is needed to run heat or A/C for the sleeper cab.
yes