P0496 EVAP P0128 ETC P0606 PMC can you tell me what these codes mean for 2004 Chevrolet Trailblazer.

evap flow during non-purge condition
P0496 EVAP Flow During Non Purge Condition P0496 Chevrolet Evaporative Emission System Flow During Non Purge

P0128:
P0128 OBD-II Trouble Code
Technical DescriptionCoolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

What does that mean?This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.

CausesA code P0128 may mean that one or more of the following has happened:

Low engine coolant level .
Leaking or stuck open thermostat .
Faulty cooling fan (running too much) .
Faulty coolant temperature (ECT) sensor.
Faulty intake air temperature (IAT) sensor .Here's a link on replacing your thermostat.

no such code but p0496 is a evap solenoid

www.engine-light-help.com/generic-check-engine-light-codes.html

P0106 is basically a leak somewhere in the intake manifold, could be vaccum hoses that are loose or cracking, or a bad MAP sensor which is very simple to change, about 30 seconds.

P0496- is an EVAP problem, could be as simple as a gas cap that is loose or not sealing properly. Turn the cap several clicks then clear the code out, see if this takes car of this problem. If not, look at your Canister Vent Valve, about $30, or the Canister Purge Solenoid, about $30 also.


I've personally had both these codes also, mine ended up being a bad MAP sensor. P0496 showed up when my significant other didn't put the gas cap on correctly or tight.

p0106 is your map sensor performace. located at your intake system. when dealing with this code.must remove the sensor and see if there is any blockage of dirt or carbon deposist.try to clean it with carburettor cleaner.if still occurs,replace the sensor,check also the wiring harness

the p0496 means that the evap system flow during non-purge first check ur gas cap this can cause the check engine code if cap is good and on tight than the usual culprit is either evap purge solenoid and or canister vent solenoid sticking not expensive to replace by self in driveway but before u do check with a dealer in area and advise about code to see if covered should be since its an 08 evap should be covered [dont know mileage and or condition of truck which makes a difference on warranty ]

Hi, trouble code P0496 means: EVAP Canister Purge System High Purge Flow
Take care

Start with the first code first. The P0606 code essentially means the PCM has failed - more info @ http://www.obd-codes.com/p0606

Replacing it is the only fix. Sounds like it may be sticking open slightly.