Detailed advice ,how to change spark plugs of hundai sonata 6 cylunder.?

Go To pep boys or read car manuelDetailed advice ,how to change spark plugs of hundai sonata 6 cylunder.?
Treat as you would any other car - work carefully, consider that the heads are made of alloy, the plugs probably the smaller size common on modern engines, and use CARE and not BRUTE-FORCE!

Only ever remove one HT lead at a time, so you can't possibly lose the firing-order. Check the HT lead for cracks in the insulation and heat-damage. I always use a good quality socket, with a 1/2'; wrench, to extract the old plugs. Check their condition and read what their colour says about the life they have had - plugs tell you what is going on in the engine.

Using a proper feeler-gauge, set the clearance on the new plugs to the gap stated in the manual or hand-book. Apply just a drop of engine-oil to the threads of the plug, insert it into the socket, and get it started into the hole. I always use a tubular wrench for fitting the new plugs - it is designed to be a weak tool, that will just not be able to murder the plugs in too tightly! The plug should spin easily in, if there is any real resistance, you may be cross-threading it. Check it can be turned back just as easily as it is going in. Get it up finger-tight, and then nip it up with the short swinging-handle on the plug-wrench.



Remember, you don't want to break it! No bicep-strains here please. Replace the HT lead and do the next one. Repeat until all 6 are done.Detailed advice ,how to change spark plugs of hundai sonata 6 cylunder.?
Take them out, they are worth more than the car - scrap the car
to remove the rear plugs you need to remove the intake manifold. this is a complicated process that can't be explained to someone that probably has never done this. better to take it to a shop.