YouTube - Subaru 2 & 4 Misfire Issue
I'm so freaking frustrated right now, it's not even funny...
Took the car to the shop after misfire on 2 & 4 that started out of nowhere a couple of weeks ago, they said to replace the plugs and coil packs on that side. I had a feeling they're just saying that because that's the most obvious, but I was hesitant because I just had a feeling it was something else, NOT the coil packs.....
So, replaced the coil packs on 2 & 4 and new iridium plugs for all 4 cylinders, still have misfire on 2 & 4 (but no CEL codes at all since the shop). Drove it around the block, STILL no CEL code, still misfiring. Let it idle in the garage for a couple minutes, STILL misfiring and the computer still refuses to throw up a CEL.
So I unplugged the two coil packs on cylinder 1 & 3 and the car didn't start. So I unplugged them on 2 & 4 and the car ran exactly as it did when the problem first happened misfiring on 2 & 4 (but still no CEL).
And if I unplug either coil pack on 2 & 4 (running it on essentially 3 cylinders) it doesn't matter, runs the same as if 2 & 4 were never plugged in.
NOW HERE IS THE STRANGE PART!
I hear a strange mechanical "clunking around" noise when I first start it up when it's cold. It's like the car starts up normal (firing on all 4 cylinders perfectly fine), then the clunking sound happens within a half-second of starting it, then it IMMEDIATELY starts to misfire. It happens really fast (within a second to a second and a half of starting it).
----BUT----
It will NOT do the clunking noise again until the engine cools back down (being off for 20 minutes or more). You can start it all you want after the first clunking noise, and it won't do it ever again until you shut it off and let it sit.
So, really! is going on? Anyone have any ideas, or sound like ANYTHING? I've dropped engines and transmissions, and always worked on my cars, but this is something that completely baffles me, and I would like to have some sort of idea of what I'm talking about if I end up trailering it to the dealer (70 miles away).
I'll take a video of the car making the clunking noise later tonight (once it has time to cool down) and I'll post it up so you guys know exactly what I'm on about.
I'm so freaking frustrated right now, it's not even funny...
Took the car to the shop after misfire on 2 & 4 that started out of nowhere a couple of weeks ago, they said to replace the plugs and coil packs on that side. I had a feeling they're just saying that because that's the most obvious, but I was hesitant because I just had a feeling it was something else, NOT the coil packs.....
So, replaced the coil packs on 2 & 4 and new iridium plugs for all 4 cylinders, still have misfire on 2 & 4 (but no CEL codes at all since the shop). Drove it around the block, STILL no CEL code, still misfiring. Let it idle in the garage for a couple minutes, STILL misfiring and the computer still refuses to throw up a CEL.
So I unplugged the two coil packs on cylinder 1 & 3 and the car didn't start. So I unplugged them on 2 & 4 and the car ran exactly as it did when the problem first happened misfiring on 2 & 4 (but still no CEL).
And if I unplug either coil pack on 2 & 4 (running it on essentially 3 cylinders) it doesn't matter, runs the same as if 2 & 4 were never plugged in.
NOW HERE IS THE STRANGE PART!
I hear a strange mechanical "clunking around" noise when I first start it up when it's cold. It's like the car starts up normal (firing on all 4 cylinders perfectly fine), then the clunking sound happens within a half-second of starting it, then it IMMEDIATELY starts to misfire. It happens really fast (within a second to a second and a half of starting it).
----BUT----
It will NOT do the clunking noise again until the engine cools back down (being off for 20 minutes or more). You can start it all you want after the first clunking noise, and it won't do it ever again until you shut it off and let it sit.
So, really! is going on? Anyone have any ideas, or sound like ANYTHING? I've dropped engines and transmissions, and always worked on my cars, but this is something that completely baffles me, and I would like to have some sort of idea of what I'm talking about if I end up trailering it to the dealer (70 miles away).
I'll take a video of the car making the clunking noise later tonight (once it has time to cool down) and I'll post it up so you guys know exactly what I'm on about.