When do i need to change timing belt on my 2003 hyundai xg350 just bought car and didnt get any info on it,

Follow the link to the timing belt diagrams, all of the needed info is there, scroll past the serpentine belt diagras, T belt is lower down on the page. https://www.2carpros.com/diagrams/hyundai/xg350/2003

When I did a timing chain on my Datsun I set up TDC on number 1 cylinder and then used a dob of paint on each pulley and a fixed point on the engine so that I could make sure everything lined up the same when I changed the chain.

bad fuel pump connection hose. over time the plastic wares out and gas eats through the plastic hose on the fuel pump. Car will start. Access fuel pump through the trunk- easy to replace. Same thing happened to me!

Towing a trailer with an XG350 is not recommended by the factory.

No. There is so much you will have to move out of the way to do it. It is better to pay someone to do it and sit back and have a beer or two while waiting.

No not cover that's normal wear, belts, brake pads or shoes, hoses, just a few thing's list more then likely longer.

Its possible, was the crank sensor physically damaged or just an internal failure. That would determine if it was a coincidence or not.

Ita an imobilizer fault.Try changing the key fob battery first.Before having it reprogamed.

It is a pain in the **** on the 3.5L. One trick I have found is not only do you have to take the hydrolic tensioner off, but it makes it easier if you also loosen the manual tensioner right by the hydrolic one. there are 2 holes in the pully. when you finally get the belt on when lined up correctly, turn the tensioner so the belt is really tight, you should be able to pull the pin on the hydrolic tensioner and put it back in. If the belt is too loose in front one of the cams will spin to one tooth off. have patience, these belts are a pain!!!!!!

ALLDATA SHOW 4.4 HRS TO REPLACE BELT.