Jeep wj 2.7 problems

[rkoste32]

hello guys,
im having some problems with my jeep
one of them is outside is very cold and im having very little heat blowing in the cab, sometimes it so hot it burns my hand but for a very short time after that is warm..changed antifreeze and thermostat 1 year ago, im blaming the heater core being clogged, does anyone know where the 2 hoses going in the core are located? i tried looking for them but no luck,im planning to hook up a water hose to it to clean it
the second problem is about fuel tank, let's say i park my care with a full tank and i leave it for 2 3 days, when i start it up it always shows less fuel than before parking it, sometimes i parked it with 3 lines on the fuel gage and when i started it up the fuel light came on..eventually it rises up but very slow and never to the level i left her with,and sometimes with 3 lines of fuel and parked it a little bit uphill on a road border(sorry dont know the word for this) lifting the front of the car with let's say 6 cm difference prom the back..and i didn't want to start anymore..or starting for 2 seconds and dying..i had to put 20 liters of diesel in it to start again..the same problem happened again one morning..first start in cold weather and started perfectly drove a few km and shut it down a little bit uphill(like first time) with half of gas tank..it started on the third try..i changed my pressure regulator with a new one, new hoses orings, a few new hoses, i rebuild the high pressure pump and don't know what it could be the problem
can anyone give me some advices?
thank you

[Ben-n-Jo]

If you park with left hand side down hill gauge will read lower.
I have put a 10mm anti return valve in fuel line on the tank side of fuel filter. to stop fuel running back to tank if I have an air leak with orings. Replace all orings from high pressure pump back to and including fuel filter. Hope this helps. Heater could be the blend doors, a common problem. Heaps on YouTube about this.
Hope this helps you. Ben

Sent from my ZTE T84 using Tapatalk

[rkoste32]

it always reads lower, i doesn't matter where i park it, and the blend doors were replaced by the previous owner the work well,i wish i could find those hoses that run into the heater core

[Adrian D]