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new cat

Old 01-25-2012, 07:21 PM
Thread Starter
Join Date: Jan 2012
Location: florida east coast
Posts: 64
Default new cat

after 3 weeks of code 420, new egr, throttle body and injector cleaning, new o2 sensors,pcv with hose and plug wires... dealer finally warrantied a new cat for me on my 06 t and c... first day of driving pulled into garage...terrible burning smell... next morning at start up... 5 minutes of smoke rollin out exhaust... this am... no smoke at all but smell still there after heating up... oh yea... been burnin 1 qt per 1200 miles for about year now.. what ya think ? if valve seals, wouldnt it smoke every morning ?
Old 02-02-2012, 01:09 AM
Senior Member
Join Date: Apr 2011
Location: Milwaukie, OR
Posts: 131

wow I guess that was shy Cat Died. Makes me wonder noticed today my 2005 T&C with 82 K was at the add line and I believe I have about 1500 Miles out of 3K before Oil Change never see smoke, do have oily film Very Light around Filter and on plastic Splash guard for Belts yet see no actual leaks could that have caused my Cat to go the 420 Route? How could I test to see if oil is being eaten or leaked out to be sure shich it actually is?
Whne I changed plugs in June I believe they were not looking like anything I have seen that is burning oil they actually looked great just wore but great looking shape.
Old 02-03-2012, 04:24 PM
Thread Starter
Join Date: Jan 2012
Location: florida east coast
Posts: 64

did you have the cat replaced ? dealer finally changed mine out... under warranty up to regular mechanic suspects bad valve seals for couple years and the reason not much smoke is because the cat was trapping it... thus, it finally overheated and threw code 420... now... with all this stuff replaced, i am monitoring oil usage for next 3000 miles... if still burning it... i think i will change to a heavier oil, which, everyone says, should really help.. good luck... think 05 and 06 might be a couple bad years for this van...
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