Dirt in spark plug threads - 2004 F150 4.6L V8
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Originally Posted By: AVB
Originally Posted By: SOHCman
The spark plug thing wasn't a problem on the 5.8 was it? I think its got iron heads anyway.
5.8 or 5.4? 5.4 has issues, the old 5.8 doesn't.
A new to me 5.8, one of the last years for it I believe before they went to the modular engines. I still need to go through it and change the plugs and everything so I know its all correct, good to know it doesn't have the thread problem...
Originally Posted By: SOHCman
The spark plug thing wasn't a problem on the 5.8 was it? I think its got iron heads anyway.
5.8 or 5.4? 5.4 has issues, the old 5.8 doesn't.
A new to me 5.8, one of the last years for it I believe before they went to the modular engines. I still need to go through it and change the plugs and everything so I know its all correct, good to know it doesn't have the thread problem...
No plug problems in a 5.8. In fact, the first engine I ever changed the plugs on was an '87-'91 F-150 4x4 with that engine. I was sitting on the header panel just to reach the plugs, no way it was happening from the ground.
No kidding, you need a stepping stool just to reach into the engine bay, though this is a 250. It's seems to be a thirsty engine, but my initial mpg reading came in just shy of 15 mpg which isn't too bad for a 8600 gvw truck. Luckily by 97 they came with roller lifters and the like.
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