Question about 2001 Hyundai Sonata

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Need detailed how-to--but only for replacing rear 3 plugs on V6 hyundai sonata 2001. There are lots things connected to intake manifold, which cannot be lifted high enough to prop it high enough to place socket wrench onto the rear 3 plugs.

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I just did this today. This is how I did it and by no means I am a professional. You will find two 12 mm black bolts along with 3 12 mm zinc bolts on top of manifold these need to be taken out. Next on the left hand backside you will see a ground wire that needs disconnect. Right by this connection you will see another 12mm black bolt on the back side this bolts need taken out. there are two more of these bolts going across the back that holds a wire harness as well as the intake manifold. Next, I took of the flex pipe from air filter and disconnected the wire harness (gray and black) I believe go the air flow meter. this will help you get to the left side back bolt. the middle back bolt is right under the trottle cable brackets. I moved my cables being carefully not to move the 12 mm nuts to much. Next I took the bracket off which gave me room to get to the bolt. The manifold should be free to move now. be carefull and gentle when moving to look for any connection that might impede moving the manifold to the right side(brake fluid tank side) this will give you enough room to change all three plugs. Took me a couple of hours to do.

Posted on Mar 12, 2009

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How do you change spark plugs in a 2004 hyundia sonata


It depends on which engine is in the vehicle. The 2004 Sonata came with two possible powertrains -- the 2.4 Lit L4, and the 2.7 Lit V6.

On the 4 cylinder engine, there are two coil packs and two ignition wires, Below each coil pack is a spark plug (#2 and #4 cylinders). The wire from # 2 coil pack goes to #3 spark plug, and the wire from #4 coil pack goes to #1 spark plug.

Photo:

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Now the 2.7 Lit V6 requires you remove the surge tank (intake manifold) in order to access the spark plugs & wires on Bank 1 (Right Hand side of the engine).

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I posted this solution for this same engine on the 2001 Kia Optima. It is Exactly the same 2.5 V6, and the instructions are exactly the same. I recommend replacing the plug wires. Please see 2001 kia Optima for the rest. Good luck, it's fairly easy.

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