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the '09 had a broken exhaust flex pipe that I was unaware of for several weeks. yeah, yeah, I know, but it's a commuter car and I'm not under it all the time and it's been SO reliable we count on nothing ever going wrong with it.
when I found out, by the exhaust tip melting a half-moon hole in the bottom of the plastic valance under the rear bumper... I attempted to clamp the frayed steel braiding back to the lower elbow (top of the muffler). and suspended the whole muffler by a piece of tie-wire. all this only until I could get a stainless exhaust for the '14 and put the '14's exhaust on the '09.
well after a couple of weeks being parked in the driveway (we bought a Crosstrek she's been driving) it wouldn't start.
had it towed to the local MB shop who claims they're smart certified (is there actually such a thing?) and he says cylinder wash.
could this be caused by improper exhaust back pressure fouling the O2 sensor and causing it to run rich, thereby washing the cylinder walls?
any info is appreciated.
Thanks in advance.
p.s. we're thinking about sending this one on it's way and buying a later model with less miles.
so, possible we may have found the end of "cost effective" life...? I hope not and wouldn't/didn't expect it, but...
when I found out, by the exhaust tip melting a half-moon hole in the bottom of the plastic valance under the rear bumper... I attempted to clamp the frayed steel braiding back to the lower elbow (top of the muffler). and suspended the whole muffler by a piece of tie-wire. all this only until I could get a stainless exhaust for the '14 and put the '14's exhaust on the '09.
well after a couple of weeks being parked in the driveway (we bought a Crosstrek she's been driving) it wouldn't start.
had it towed to the local MB shop who claims they're smart certified (is there actually such a thing?) and he says cylinder wash.
could this be caused by improper exhaust back pressure fouling the O2 sensor and causing it to run rich, thereby washing the cylinder walls?
any info is appreciated.
Thanks in advance.
p.s. we're thinking about sending this one on it's way and buying a later model with less miles.
so, possible we may have found the end of "cost effective" life...? I hope not and wouldn't/didn't expect it, but...