Olsin6
New Member
- Joined
- Mar 2, 2012
- Messages
- 32
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 2004
- Make / Model
- Ford
- Transmission
- Automatic
2004 Ford Ranger 3.0L v6
Okay, so I just recently dropped in a new factory short block. Forked out the dough and just did the whole motor myself. Previous motor was misfiring like a mofo, compression was low, and she had 120k on her.
Dropped in the new motor, new ported heads (one old one was cracked), ported the stock exhaust manifolds, replaced pretty much every part on the engine.
After about a month, I am now getting P0305 and occasionally P0303. The plugs were new (all are within gap spec, all burning as should), plug wires are fairly new (replaced right before motor swap), and the coil pack has been replaced. Now, the trick. I'm getting the check engine light for those codes, and its flashing. But its only when im doing 50mph+. I don't get it on street speeds or idle. Feels like its running fine?
I've been chasing these misfire codes since before the motor swap, but before my swap, it was at idle. Now its at 50mph+. Any suggestions? First hand experience? Since I had a thread going, whats the best way to check for a vacuum leak? My AC is only blowing out of my defrosters. Whats the best way to pinpoint the leak?
Thanks,
Joey
Okay, so I just recently dropped in a new factory short block. Forked out the dough and just did the whole motor myself. Previous motor was misfiring like a mofo, compression was low, and she had 120k on her.
Dropped in the new motor, new ported heads (one old one was cracked), ported the stock exhaust manifolds, replaced pretty much every part on the engine.
After about a month, I am now getting P0305 and occasionally P0303. The plugs were new (all are within gap spec, all burning as should), plug wires are fairly new (replaced right before motor swap), and the coil pack has been replaced. Now, the trick. I'm getting the check engine light for those codes, and its flashing. But its only when im doing 50mph+. I don't get it on street speeds or idle. Feels like its running fine?
I've been chasing these misfire codes since before the motor swap, but before my swap, it was at idle. Now its at 50mph+. Any suggestions? First hand experience? Since I had a thread going, whats the best way to check for a vacuum leak? My AC is only blowing out of my defrosters. Whats the best way to pinpoint the leak?
Thanks,
Joey