How do you change spark plugs on 2003 mercury sable?

Answer 1

Front 3 are easy. Here's for the back 3

You have to remove the upper intake manifold. Here are your instructions

1. Disconnect the battery ground cable.

2. Remove the air cleaner assembly and the air cleaner outlet tube.

3. Remove the pin-type retainers and the snow shield.

4.Disconnect the accelerator cable, speed control actuator cable and the throttle return spring from the throttle body

5.Remove the bolts, then position the accelerator cable bracket aside

6.Disconnect the hoses.

• Disconnect the vacuum hose.

• Disconnect the evaporative emissions (EVAP) return tube

7.Disconnect the idle air control (IAC) valve and the throttle position (TP) sensor electrical connectors

8.Disconnect the engine wiring harness from the intake manifold support bracket

9.Remove the upper intake manifold support bracket

10.Disconnect the positive crankcase ventilation (PCV) tube from the upper intake manifold

11.Loosen the nut and disconnect the exhaust gas recirculation (EGR) tube from the EGR valve

12.Disconnect the vacuum hose from the EGR valve

13.Disconnect the vacuum regulator solenoid vacuum and electrical connections. Disconnect the vacuum hose from the upper intake manifold

14.Disconnect the wire harness retaining clip

15.Disconnect the spark plug holder and the radio interference capacitor electrical connector

16.Remove the bolts and the upper intake manifold