I've now seen five of these engines and I'm just wondering if I keep on getting unlucky or these are truly just the most unreliable POS engines Ford's ever made. I now understand that the timing chain guides are weak, but not the true issue. It's the hydraulic tensioners. I recently put in another engine and change the hydraulic tensioners and then just seems to be running fine now that that main issue is out of the way. How reliable is this engine?
All right, I have this '05 Ford mustang 4.0 the notoriously crappy engine. I've put five of them in there now. His fifth one is running strong and it has a 6-month warranty on it. I finally learned my mistake and changed the timing chain tensioners before putting the engine in. It would seem to have stopped the braking of the cassettes the engine sounds fine. Everything else in the car is good. I put a lot of money into the car as I said engine number 5 along with suspension parts, fuel parts, Eva parts mods and a tune. Thinking about either keeping it or trading it. If I traded it, I'd want another sports car. Something a little older. Maybe like a c4? Do you guys think it's worth keeping? And if you think it's worth trading, how should I go about it?
Update: after asking around it seems the hydraulic tensioners are the main issue and she be changed every 60 to 70,000 mi if that is the case I'm going to keep it and finish out the build and tune thanks for your insight if you have any