IDENTIFYING 16 VALVE ENGINE VS. 24 VALVE ENGINE
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From: Fairfield, Ohio
IDENTIFYING 16 VALVE ENGINE VS. 24 VALVE ENGINE
For an 2004 F-150 5.4 L , how can you identify if it's a 16 valve or 24 valve engine. Been told it's the 3 valve engines that have the spark plugs problems.
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Joined: Mar 2005
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From: Mexico, Missouri
My memory is a little fuzzy, but I recall that 2003, 5.4 and later modular engines had the 2-piece plug design.
The earlier modular engines, 5.4, had just 3.5 threads that held the spark plug in the head. They were prone to blowing the plug out. My ex had a 2000 expy that I had to be careful installing and carefully torque down the plug.
The earlier modular engines, 5.4, had just 3.5 threads that held the spark plug in the head. They were prone to blowing the plug out. My ex had a 2000 expy that I had to be careful installing and carefully torque down the plug.
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2004 F-150 Heritage has a 2 Valve, 2004 F-150 "New Body Style" has a 3 Valve.
Does your truck look more like the 1997-2003 F-150? It is a heritage and will have a 2 Valve
If it looks more like the 2005-2008 F-150, It is a 11th gen "New Body" and will have a 3 Valve
Does your truck look more like the 1997-2003 F-150? It is a heritage and will have a 2 Valve
If it looks more like the 2005-2008 F-150, It is a 11th gen "New Body" and will have a 3 Valve
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