evap

  1. G

    hard to start after replacing evap items for won’t fill with gas

    Hello. I have to crank a long time before starting after replacing some Evap items. I know there are tons of threads on the hard to fill with gas topic but I have not seen my situation. Please help and I thank you in advance for any help. 2007 Yukon 5.3 flex. I have the typical hard to fill...
  2. T

    Fuel tank and Evap lines

    Have a gas smell coming from the rear of my 05 escalade (base model). Replaced the gas cap but still having gas smell. No check engine lights and seems to start fine. Reading up on it seems to be a fuel or evap line may need to be replaced. Actually all likely need to be replaced. Can...
  3. K

    Torque app question / Evap code help (P0446)

    Vehicle: 2003 Chevy Tahoe 1500 LT (with 5.3L V8) I understand that Code P0446 means the car's computer has detected a problem with the EVAP system vent valve. I have tested the evap system vent valve. It is open when not activated and closed (holds vacuum) when activated with a 12v supply. I...
  4. TheBiznisKitty

    EVAP Codes: p1400, p0172, p0175

    Hello all! I have run into some engine codes with my EVAP system. Before today, I was having the codes p0172 and p0175 being trigged (fuel system too rich aka too much gas not enough O2). I know the engine has to be getting plenty of O2 as I have an aftermarket CAI and a Black Bear...
  5. T

    I/M Readiness WILL NOT set

    I don’t know what to do. I have a 2006 Tahoe 5.3. I had a code for a large evap leak. I replaced the gas cap and I believe the vent valve solenoid. I cleared the light and drove for a couple days. Without checking with my own scanner before going I took my Tahoe to the emissions testing place...

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