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  1. DTC's, Problems & Troubleshooting
    I have a 2005 Buick Lacrosse CXL, 3800 series 3. I have been dealing with P0420 since April. I replace a single part and reset my CEL each time. So far i have replaced both 02 sensors, the catalytic (factory style with new gaskets), the gas cap, and most recently the canister solenoid (located...
    2005. buick evap lacrosse p0420
  2. DTC's, Problems & Troubleshooting
    Hi, this is my first post on this forum but i've been reading many threads over the past year and I've realized there are alot of smart individuals here. I am a very active member over at News - NAIOA. I have a 2003 chevy impala ls 3.8. Anyway, to my problem... I have the cel p0440. I know this...
    cel evap impala leak p0440
  3. DTC's, Problems & Troubleshooting
    Hi all, I've owned a 3800 of some sort for about 10 years now and am fairly familiar with them. my current impala (2004) is popping the p0446 code and I have tried the following to clear it: 1. evap canister valve leaking, replaced with new. 2. purge valve was original unit - replaced with...
    cel evap p0446
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