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05-21-2013
I have a 2007 grand prix, it's been running rough.code came up PO455 so I change the gas cap, then the purge solenoid. It ran good for a while the the engine light came back on. Can it be the charcoal canister are what? I read there is a blender valve for the canister but I don't know where it is.... Please help I'm wasting to much gas
05-21-2013
What does 455 stand for?
05-21-2013
Evap
05-21-2013
you changed everything but what you should have changed it seems.
OBD-II Trouble Code: P0455 Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean?
This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
05-21-2013
455 is a Pontiac engine that came in 3 flavors your 455, 455 h.o., and 455 sd. The h.o. and sd ones make 500 hp on a 750cfm quadrajet.Originally Posted by BillBoost37
Originally Posted by Bio248
Originally Posted by Kilroy
05-21-2013
So what do I do.. Check gas lines. How do I check the charcoal canister
05-21-2013
id be changing the canister and the sensor thats in it, its located in the driver side rear wheel well. its the last part to a whole new evap system, being you changed all the other parts already.
05-21-2013
Yea thts Wht I thought but wasn't sure. Do I have 2 droop the tank are just unplug the hoses and take off the canister.
05-21-2013
take the tire off, and the plastic wheel well line, unhook the lines and the plug, unbolt it.
theres how to's out there, google works best.
looks like this.
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