How do I drain Santa Fe fuel tank

gas fuel filter is located in the gas tank as part of the fuel pump --dropping tank ---if diesel located front firewall How to replace fuel filter on HYUNDAI SANTA CM TUTORIAL AUTODOC

It could be the sending unit in the tank or the gauge on the dash. A mechanic would test the signal coming from the sending unit to verify.

As long as you didn't start it & they got it all the gasoline out you're fine.

Average for a V6 engine 2 wheel drive model is 20mpg. That is 20 miles per gallon US.
If you have an 18 gallon tank, you could expect 180 miles on a half tank of fuel. Again, this is US measurements.

Never seen a big engined petrol one of these ,diesel manuals yes plenty abound ,but this year model on the diesel anyway suffers from a crankshaft keyway problem and it wears away allowing the front pulley and timing gear to move allowing the pistons to hit the valves ,now later models had a deeper keyway as a remedy but yours is a 2002 and this could suffer the same problem as the diesels.So check the timing marks first before you change this and that ,V6 petrol ?? try paying 7 dollars a gallon and then say if the diesel isnt the best for economy

You don't say how much diesel you put in or how much petrol was in tank in the first place. If the amount of diesel is less than 5 % of the total then you may try filling tank with petrol and keep topping up to dilute the diesel. The best fix would be to drain fuel tank completly and refill with petrol. If tank has a drainplug , this will be easy but if no drain plug you will have to remove tank from vehicle to empty it.

The "MOST EFFECTIVE
" way is to REMOVE The FUEL TANK and DRAIN it By Tipping it over to Pour From FUEL INLET HOSE. Im Sure you Dont want to Here this as it Requires Much WORK . , BUT It IS The MOST EFFECTIVE Way to EMPTY The TANK.

You can buy a suction hose small enought to get intothe tank at an auto parts store. you will have to remove the fuel from the tank. All of it and then replace fuel filter.

HAVE YOU CHECKED THE FUEL LINES WHERE THE FUEL PRIMING PUMP IS CONNECTED FOR ANY CHAFFING THEY ARE COMMON FOR CHAFFING BESIDE THE FUEL FILTER WHICH WOULD EXPLAIN WHY FUEL IS RETURNING TO FUEL TANK.

Hi, this could be down to the fuel line and injectors being dirty as at low revs their is less pressure forcing the fuel through.
My first thing to try would be to buy a fuel cleaner that you pour into the fuel tank these tend to solve the problem your having.
Make sure you buy the correct one ie petrol or diesel follow instructions on the bottle for amounts to use then run the car for a good run usually takes about 4 hours of driving time to fully clear all fuel lines and filters.
I use this in my car once a month as you can pick up small traces of dirt from filling stations this then clogs up over time.
Hopefully this will solve your problem if not then give me a shout back and ill assist you further