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  1. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    I have codes P0440 twice and p0300 so I have a random multiple misfire and Evap emission control problems. Sometimes it won't start on the first try but always on the second. I have a check gas cap error pop up on my dash. I don't know what's going on with it or what to fix. The hose going to my...
  2. 2008-2013 CTS General Discussion
    I have a 2008 cadillac CTS-AWD that had an evap code. Per my diagnostic reader advice I replaced the EVAP cannister and reset the codes. It has been three weeks and it hasn't reset and when I run the pre emissions check is says it isn't ready and neither is the catalyst. I have failed once...
  3. SRX 2nd Generation Forum - 2010-2016
    This MAF problem is apparently so difficult to fix the dealer either forgot to fix it or just gave up. It’s been at the dealer since July - yes, 5 months - mostly a warranty repair - which included several engine system problems, a head gasket leak, and a broken gear box, but just got it back...
  4. Escalade, EXT and ESV Forum - 1999-2006
    I have to start with I absolutely love my ESV, she has just over 200K, runs and drives great. Recently I had to replace my knock sensors, and while I was in the engine that deep I did my valve cover gaskets ( had an oil leak due to worn grommits), did plugs & wires cleaned up the gunk from the...
  5. Seville and Eldorado Forum
    I need to remove the vent valve on my 2001 STS (to diagnose a P0440 code). I suspect the vent valve is defective as I no longer hear it click-click right after vehicle start. It's hard to reach, and there appears to be a single bolt well rusted in place (see #1 below). Any advice on how to...
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