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Ron Z.
Ron Z., - Ford Tech -
Category: Ford
Satisfied Customers: 19048
Experience:  18+yrs experience. State Inspector & Ford Diagnostics/Repair
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how to change spark plugs on 2006 F150 v-8 5.4 ltr.

Resolved Question:

how to change spark plugs on 2006 F150 v-8 5.4 ltr.
Submitted: 5 years ago.
Category: Ford
Expert:  Ron Z. replied 5 years ago.

Welcome! I'm Ron Z! I will do my best to answer all of your questions. For easy access to this thread, bookmark it now! Please read everything!


 

On this vehicle, the spark plugs are located under the individual Ignition Coils. The coils will need to be removed first, to access the plug. On this engine, there is also a "known problem" while removing the spark plugs. The plugs, on some engines, have a tendancy to seize themselves in, and during removal have a chance of breaking, leaving part of the plug still inside the cylinder head. Use extreme caution, and follow the procedure below as closely as you can!

 

To remove spark plugs without damage, it is necessary to adhere exactly to this procedure before removal is attempted.

CAUTION DO NOT REMOVE PLUGS WHEN THE ENGINE IS WARM OR HOT. THE ENGINE MUST BE AT ROOM TEMPERATURE WHEN PERFORMING SPARK PLUG SERVICE. REMOVING THE SPARK PLUGS FROM A WARM/HOT ENGINE INCREASES THE CHANCE THE THREADS COULD BE DAMAGED.

 

Spark Plug Removal Procedure

1.Remove the coil-on-plug assemblies and thoroughly blow out the spark plug wells and surrounding valve cover area with compressed air.

 

2.Back out the spark plugs no more than 1/8 to 1/4 of a turn. Using Motorcraft(R) Carburetor Tune-Up Cleaner, fill the spark plug well just above where the jamb nut hex sits (1/2 - 3/4 teaspoon). A minimum period of 15 minutes of soak time is required. The cleaner will wick down to the ground electrode shield and soften the carbon deposits in this time. DO NOT WORK the spark plug back and forth at this point.

 

NOTE COMPLETELY REVIEW THE PRODUCT LABEL FOR THE MOTORCRAFT CARBURETOR TUNE-UP CLEANER PRODUCT - USE AT ROOM TEMPERATURE AND SHAKE WELL.

 

CAUTION EXCESSIVE MOTORCRAFT(R) CARBURETOR TUNE-UP CLEANER, OR REPEATING THE PROCESS SEVERAL TIMES WITH TOO MUCH CLEANER FLUID, COULD INTRODUCE ENOUGH LIQUID VOLUME TO HYDRO-LOCK THE ENGINE.

 

CAUTION DO NOT USE AIR OR POWER TOOLS FOR SPARK PLUG REMOVAL. SPARK PLUGS MUST ONLY BE REMOVED WITH HAND TOOLS.

 

3.Tighten, and then loosen the spark plug, working the plug back and forth. Some screeching and high effort may be noticed. The expected removal torque is about 33 lb-ft (45 N.m). Repeat the back and forth turning as needed until turning effort is reduced, and remove the spark plugs.

 

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