Good morning,
I would remove the spark plugs and see if the engine cranks over faster. I am wondering if the head gasket failed and there is coolant in one of the cylinders. You cannot compress a liquid and the result is what you hear.
https://www.2carpros.com/articles/engine-overheating-or-running-hot
https://www.2carpros.com/articles/head-gasket-blown-test
https://www.2carpros.com/articles/how-to-change-spark-plugs
I attached the procedure for removing the plugs below for you.
Roy
Spark Plugs
Base Part Number: 12405
Removal
image WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.
NOTE: Removal steps in this procedure may contain installation details.
Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation) .
Remove the ignition coil-on-plugs.
Refer to: Ignition Coil-On-Plug (303-07B Engine Ignition - 2.0L EcoBoost (184kW/250PS) - MI4, Removal and Installation) .
NOTICE: Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make sure the engine is warm (hand touch after cooling down) prior to spark plug removal.
NOTICE: Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
NOTICE: The spark plug procedure must be followed exactly or damage to the cylinder head and spark plug will result.
NOTICE: The spark plug must be securely held in an assembly aid or tool to prevent the spark plug from falling into the spark plug well which may damage the spark plug or the cylinder head.
NOTICE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause engine damage to occur.
NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
Remove the spark plugs.
Torque : 106 lb.in (12 Nm)
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Installation
To install, reverse the removal procedure.
Image (Click to make bigger)
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Monday, March 29th, 2021 AT 5:50 AM