Ford AGSF-32W-MX
Spark Plug

The ground cable of the battery must be disconnected before servicing the spark plugs. Service and repairs for the right-hand side spark plugs require upper intake manifold removal to gain access. You need to detach ignition coil electrical connectors before taking out the bolts which also remove the ignition coils. Apply compressed air to remove all foreign debris from the spark plug well before commencing with the plug removal process. The inspection process of spark plugs should include gap adjustment which must be followed by proper tightening to 15 Nm (11 lb-ft) torque value. The ignition coil boots need a minimal amount of dielectric grease applied inside before reinstallation as a new step. Installation of ignition coils and bolts follows with similar torque specifications at 15 Nm (11 lb-ft). Reinstall the upper intake manifold by its right-hand side while completing the process by reattaching the battery ground cable.

A service technician should start spark plug replacement by disconnecting the upper intake manifold. Discard the ignition coil electrical connectors then remove its bolts while making sure to reinstall the bolts with a torque level of 6 Nm (53 lb-in). Pay attention to rotate ignition coils gently because this technique will loosen the seals to improve extraction. Compressed air should be used to clean the spark plug well before removing the plugs. The proper torque setting for spark plugs is 15 Nm (11 lb-ft) when reinstalling. The spark plugs need inspection then cleaning with either a wire brush or a professional spark plug cleaning tool according to the manufacturer's recommended procedures. Reverse the setup instructions by installing back the spark plugs with possible adjustment for the plug gap. The inner surface of the coil boots requires a thin Silicone Brake Caliper Grease layer with XG-3-A dielectric compound or equivalent material to Ford standards ESE-M1C171-A for installation.

A technician should start spark plug maintenance by removing the upper intake manifold. The service on ignition coil electrical connectors and bolts first requires disconnecting these connections then applying a small turning action for better bolt removal. You should install and tighten the ignition coil bolts to 6 Nm torque setting (53 pounds inch measurement). During removal and installation of spark plugs hand tools must be used because other tools may damage both the cylinder head and the spark plug assembly. You need to use compressed air for clearing all debris from the area where the spark plugs will be installed. When installing the spark plugs tighten them to 15 Nm (11 lb-ft). Follow manufacturer guidelines to use either a wire brush or professional spark plug cleaner to clean the spark plugs before beginning any inspection process. Proceed with the removal reversal steps while correcting the plug gap when needed. Lens on installing the ignition coils requires coating them with Silicon Brake Caliper grease and Dielectric compound XG-3-A that meets Ford specifications ESE-M1C171-A so that you can lubricate the coil boots.

The procedure for servicing spark plugs starts with removing two nuts together with the bolt along with the generator air inlet duct. The procedure continues with disconnecting the four ignition coil-on-plug electrical connectors. To take out the ignition coil-on-plugs apply a light twisting movement that will both break the seal and simplify their extraction process. You should then remove both the ignition coil-on-plugs and their four bolts. The substitution and add-on of spark plugs requires hand tools for maintaining cylinder head and spark plug safety. Compressed air helps eliminate all foreign materials in the spark plug well before taking out the four spark plugs. Examine the spark plugs before applying hand tools to set their gap and perform the installation procedure using only these tools. Tighten the spark plugs to 12 Nm which corresponds to 106 lb-in. The procedure requires dielectric grease on the ignition coil-on-plug boots before each installation step. Install the four ignition coil-on-plugs and bolts while torquing them to 10 Nm (89 lb-in). The procedure ends with attaching the generator air inlet duct followed by tightening the two nuts and one bolt to 6 Nm (53 lb-in).

You should start spark plug servicing by removing the ignition coil-on-plug system. Clear all foreign material in the spark plug well before plug removal by blowing with compressed air. Use the same cylinder for reinstallation of original spark plugs yet you can install new ones in any cylinder. The service starts with removing RH spark plugs before LH spark plugs are taken out. Check the spark plugs for any signs of trouble. To install the spark plugs you should first adjust the gap when needed then place the spark plugs back into position following the removal steps in reverse order.

Service procedures start with disconnection of the battery ground cable followed by ignition coil electrical connector removal then bolt removal from the ignition coils. Interior spark plug wells should be cleared from foreign debris before plug removal through compressed air usage. The spark plugs should be checked for damage followed by proper gap adjustment before their reinstallation where torques should reach 12 Nm (9 lb-ft). Mechanic needs to wipe a minimal quantity of dielectric grease onto the interior region of ignition coil boots prior to installing them onto spark plugs. Follow this step by step process to install ignition coils and bolts at 10 Nm (89 lb-in) torque followed by reconnection of ignition coil electrical connectors and conclusion with the battery ground cable.

Check the spark plug for bridged gap dangers and evaluate the electrode deposit accumulation to determine if it has caused the gap to close because of oil or carbon fouling. Clean the spark plug when the condition requires cleaning. Before putting in a new spark plug check for oil fouling through black wet deposits on the insulator shell bore electrodes which gets there because of excessive oil entering the combustion chamber because of worn rings, pistons, or excessive valve-to-guide clearance or worn or loose bearings. Fix any oil leak before installing the new spark plug. The presence of black dry fluffy carbon deposits on insulator tips and electrodes and shell surface areas necessitates new spark plug replacement because these symptoms could be caused by improper heat ranges and air filter filth or too-rich fuel mixtures along with prolonged idling. Examine the firing tip for normal burn appearance because light tan or gray-colored burn deposits signify proper functioning. The combination of melted electrodes and damaged insulators shows pre-ignition along with engine damage that stems from wrong ignition timing or improper fuel use or unauthorized hell-coil thread inserts require installing a new spark plug. Look for overheating symptoms which include white or light gray spots and a bluish-burnt appearance of electrodes from engine overheating, wrong fuel type, damaged spark plugs or those with improper heat range and low fuel pressure and incorrect timing. Replace the spark plug if needed. Particularly inspect fused deposits which manifest as melted or spotty bubbles that usually form when accelerating sharply then check for replacements.

Service and repair of spark plugs requires the ground cable disconnecting from the battery as a first step. Disassemble the items which include the two nuts, bolt and generator air inlet duct. Follow this step by disconnecting each of the four ignition coil-on-plug electrical connectors through slight twisting to separate them from the connection. Start by removing four bolts to extract the ignition coil-on-plugs as well as clearing the spark plug well using compressed air before uninstalling the four spark plugs. Check the spark plugs for condition then set their gaps properly before installation while tightening each plug to 12 Nm (9 lb-ft). You should apply a tiny amount of dielectric grease inside ignition coil-on-plug boots prior to their application on spark plugs and fasten the four ignition coils with bolts that reach 10 Nm (89 lb-in). Reposition the generator air inlet duct while securing the electrical connectors of the four ignition coils with two nuts and a bolt which need to be tightened to 6 Nm (53 lb-in). The battery ground cable needs reconnection as the final step.

You should start spark plug servicing and repair by disconnecting the battery ground cable. Examine the spark plugs by first removing the upper intake manifold when working on the right-hand side of the engine. The service requires detachment of six ignition coil-on-plug electrical connectors. A gentle twisting motion should help you remove ignition coil-on-plugs since it will help break their seals. After removing six bolts and six ignition coil-on-plugs you should clear the spark plug well using compressed air to prepare for six spark plug removal. Examine the spark plugs and modify their gaps correctly then install them by tightening to 15 Nm (11 lb-ft). Apply a small amount of dielectric grease inside each boot of the ignition coil-on-plug before connecting it to the spark plug. Install the six ignition coil-on-plugs and their six associated bolts while tightening them to 7 Nm (62 lb-in). Reinstall the upper intake manifold for the right-hand side lastly followed by reattachment of the battery ground cable.

Service of spark plugs starts with removing coil-on-plug ignition device along with right-hand RH spark plug replacement. Compressed air should be employed first to eliminate any foreign objects within the spark plug well. A spark plug that is reused for replacement should return to its original cylinder place but new plugs may be installed in any cylinder. Simultaneously eliminate the left-hand (LH) spark plugs before analyzing their condition. Perform the installation process by keeping the spark plug gap properly adjusted before proceeding with the spark plug removal steps in the opposite order.

Remove the ignition coil-on-plugs.

Next, remove the LH and RH spark plugs and inspect them.

Connect the spark plug wires to the spark plugs.

Yes, new spark plugs can be placed in any cylinder.

White or light gray spots and a bluish-burnt appearance of electrodes.

Remove the upper intake manifold to access the right-hand side spark plugs.

A small amount of dielectric grease should be applied to the inside of the boots.

Reverse the removal procedure.

Reconnect the ignition coil electrical connectors and finally reconnect the battery ground cable.

Clean the spark plug as necessary.