2002 blazer eng. light code 440

[write off]

my engine light has come on and a code reader brings up code po 440. All it states is that there is a problem with the emmision system. Can anyone tell me where to start looking. The vehicle runs perfect and never misses a beat. I can clear the code but after two trips the check engine light comes back on and sets the same code again. Any help is appreciated.

[BlazerLT]

P0440 is the Evaporative System Malfunction.

Check to see if any hoses have blown off the evap canister.

[cobra1]

could also be a loose/defective gas cap.

[BlackBlazOn]

what was the outcome?? I've got a 97 LS w/4.3 vortec. Check engine light on, with code 440. thanks

[BlazerLT]

Check your evap system for lines that have popped off.

[BlackBlazOn]

Had the same problem on my 97 LS Vortec blazer. All i needed was a 15 dollar solenoid that goes to the evap canister replaced. light went off, and all is well.

[BlazerLT]

Excellent!

Will remember that for future problems.

[JoshBarber]

can you tell me the location of the EVAP canister on my 98 Blazer LT?

[BlazerLT]

Check your emiisions routing diagram on the fan guard.

You need to go out to your truck before you ask questions.

[BlackBlazOn]

True statement, but here's a hint for 97 Vortec V6 owners:

The evap canister is located behind the lower rear fender on the drivers side , just in front of the rear bumper.