Once my speed hits operating temp, idling or coming off acceleration, stunningly large clouds of white smoke billow from my exhaust. I have no noticeable power loss. I don't SEE any lost fluids. White indicates water/antifreeze and a little can produce a lot of smoke
Symptoms:
P0140 CEL (makes a lot of sense if there's a ton of unburned crap getting to the O2/Cat)
Misfires a little on letting off the throttle after hard accel
White smoke. Lots of white smoke. Car is NOT on fire.
I've done the following:
Compression test left to right dry/wet: 185/205 180/205 170/200 180/205
As part of normal maint, I just turned over the oil, still running Rotella T6, popped in new plugs, nothing looked wacky just the normal carbon and halo on the old ones. Symptoms were apparent before and after.
The condition of my air filter was awful, as if a bird (at least one blasted into chunks and feathers) had actually been sucked into it, so it was potentially getting rich combustion from depressed air volume, but that's all cleared and nothing out the pipe has changed.
It's a stock MS3 with 64k on the odo. I'm looking at the shop manual, and I have never pulled the head off a OHC car - I've done it on a couple Ford 351W back in the day...but this is a little intimidating. The compression test seems to indicate that there's not a noticeable compression problem - even the 170 dry is in spec. Would it make sense to put everything back on and get a block test kit and see if there's combustion gasses getting to the cooling side? Is doing that simply wasting time and money because at this point somewhere coolant is getting into the system and pulling the head off is the path to discovery? Sanity check please.
Symptoms:
P0140 CEL (makes a lot of sense if there's a ton of unburned crap getting to the O2/Cat)
Misfires a little on letting off the throttle after hard accel
White smoke. Lots of white smoke. Car is NOT on fire.
I've done the following:
Compression test left to right dry/wet: 185/205 180/205 170/200 180/205
As part of normal maint, I just turned over the oil, still running Rotella T6, popped in new plugs, nothing looked wacky just the normal carbon and halo on the old ones. Symptoms were apparent before and after.
The condition of my air filter was awful, as if a bird (at least one blasted into chunks and feathers) had actually been sucked into it, so it was potentially getting rich combustion from depressed air volume, but that's all cleared and nothing out the pipe has changed.
It's a stock MS3 with 64k on the odo. I'm looking at the shop manual, and I have never pulled the head off a OHC car - I've done it on a couple Ford 351W back in the day...but this is a little intimidating. The compression test seems to indicate that there's not a noticeable compression problem - even the 170 dry is in spec. Would it make sense to put everything back on and get a block test kit and see if there's combustion gasses getting to the cooling side? Is doing that simply wasting time and money because at this point somewhere coolant is getting into the system and pulling the head off is the path to discovery? Sanity check please.
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