So, I have a 2005 Mustang GT 4.6L.
I bought it a few months ago at 98k miles. Shortly after that I noticed that occasionally if I put a load on the engine at low rpms the engine would start to miss and knock, and would keep doing that until I ran the rpms up over 3000.
For example, if I got close to stalling it the engine would start to sputter (as it should), but pressing the clutch back in or returning it to neutral would not help. It would continue to miss and knock until I throttled up to 3000 or higher. Then I could let off the gas and it would idle down smooth as you could hope for.
It used to do this once or twice a week, and only under load. It has gotten much more frequent since then (seven times on my way home from work today). It also will now do it without a load. It makes me look like an idiot at a stop sign when it almost dies out and I have to keep revving it at the person in front of me.
So far I have put new plugs (oe motorcraft), coils, timing chains, guides, and air filter.
What would be causing this?
Or what should I change out next?
I bought it a few months ago at 98k miles. Shortly after that I noticed that occasionally if I put a load on the engine at low rpms the engine would start to miss and knock, and would keep doing that until I ran the rpms up over 3000.
For example, if I got close to stalling it the engine would start to sputter (as it should), but pressing the clutch back in or returning it to neutral would not help. It would continue to miss and knock until I throttled up to 3000 or higher. Then I could let off the gas and it would idle down smooth as you could hope for.
It used to do this once or twice a week, and only under load. It has gotten much more frequent since then (seven times on my way home from work today). It also will now do it without a load. It makes me look like an idiot at a stop sign when it almost dies out and I have to keep revving it at the person in front of me.
So far I have put new plugs (oe motorcraft), coils, timing chains, guides, and air filter.
What would be causing this?
Or what should I change out next?