- Joined
- March 16, 2013
- Messages
- 4,261
- Reaction score
- 233
- City, State
- Woodstock, GA
- Year, Model & Trim Level
- 04 Ford Explorer 4.6l
I understand now why the timing will just let go and torpedo the 4.0 engine.
I pulled my 150k mile engine out and replaced it with my 130k engine, while having the trans swapped.
My sons 4.0 had a spark plug break, so we set forth to look over the 150k engine to swap it in.
Turns out the 150k engine had two broken rear guides. While messing with it, the front tensioner crumbled.
This engine made absolutely no noise. No start up rattle, nothing. So as these guides break, they can stay in place and function. When they let loose finally, it’s complete failure with no warning. Engine toasted.
I pulled my 150k mile engine out and replaced it with my 130k engine, while having the trans swapped.
My sons 4.0 had a spark plug break, so we set forth to look over the 150k engine to swap it in.
Turns out the 150k engine had two broken rear guides. While messing with it, the front tensioner crumbled.
This engine made absolutely no noise. No start up rattle, nothing. So as these guides break, they can stay in place and function. When they let loose finally, it’s complete failure with no warning. Engine toasted.