How do I properly remove the intake manifold for spark plug access on a 2007 Kia Sportage 2.7 ltr v6?

Here's a video on changing your rear spark plugs. 2007 Kia Sportage EX rear spark plug replacement

HERE'S A VIDEO ON CHANGING YOUR SPARK PLUGS. 2007 Kia Sportage EX rear spark plug replacement

Two additional possibilities:

• Fuel contamination (worth siphoning and replacing ALL of the fuel to eliminate the possibility, especially if you have been using ethanol blend fuel);
• Bad spark plug wire (despite proper static resistance). Just replace ALL of the spark plug wires.

they are in the factory repair manual.

For 2007 Mercury Milan 3.0L SFI DOHC 6cyl the upper intake manifold must be removed to access the RH spark plugs only.

1. Remove the upper intake manifold, if removing the RH spark plugs. Refer to the Intake Manifold procedure in the Engine Mechanical Section
2. Disconnect the 6 ignition coil-on-plug electrical connectors.
   NOTE When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
   
3. Remove the 6 bolts and the 6 ignition coil-on-plugs.
   WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
   NOTE Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
4. Remove the 6 spark plugs.

To install:

1. Inspect the spark plugs, as outlined in this section.
2. Inspect the 6 spark plugs.
3. Adjust the spark plug gap, as necessary, to 1.32-1.42mm (0.052-0.056 in.).
   WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
   
4. Install the 6 spark plugs. Tighten to 15 Nm (11 lb-ft).
   NOTE Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
5. Install the 6 ignition coil-on-plugs and the 6 bolts. Tighten to 7 Nm (62 lb-in).
6. Connect the 6 ignition coil-on-plug electrical connectors.
7. If removed, install the upper intake manifold

Hope helps.

Removing the intake manifold will give you the room you need to access the spark plugs near the firewall.

Does it look like this?

http://partimages.genpt.com/largeimages/618434.jpg (copy and paste in your address bar)?

If so that is called the plenum gasket, or intake plenum gasket. There are available aftermarket, places like NAPA should have or be able to get them. It is a common gasket to replace because of the necessity to remove the plenum to do a tune-up. NAPA gets about $7 for the gasket.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

the spark plugs are located in the head. you must remove the upper half intake manifold first, it has three bolts 12mm. then remove the black plastic cover down the center of the valve cover, six 10mm bolts. remove the two coils and plug wires. now you have access to your spark plugs. Good Luck

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Drain the engine oil.
3. Remove or disconnect the following:
   
   Negative battery cable Intake manifold bracket upper bolts Clutch release cylinder and move it aside, if equipped Intake manifold bracket lower bolts and remove the bracket Starter from the clutch, manual transmissions only Starter from the torque converter, automatic transmissions only Starter electrical connectors Move the transmission wire harness aside Starter
   
   
   Fig. Exploded view of the starter
   

To install:

1. Install or connect the following:
   
   Starter to the engine well Starter electrical connectors Lower intake manifold bracket and install the upper bolts Starter into position. When aligned properly torque the bolts to 40 ft. lbs. (54 Nm). Torque the intake manifold bracket bolts to 40 ft. lbs. (54 Nm). Properly position the clutch release cylinder, if equipped. Torque the bolts to 40 ft. lbs. (54 Nm). Torque the intake manifold bracket upper bolts to 40 ft. lbs. (54 Nm). Negative battery cable