Where is the evap vent solenoid on a chevy blazer 2001 have a code 449 and 300

Question edited for clarity, 'evac' to 'EVAP' and toss in some CAPS.
Question moved to model category.

Better to test it than just replace. $30 on Amazon, $90 at Autozone.

https://www.google.com/search?q=2001+ford+f150+code+p1451


The P1451 code indicates that there's an issue with your vehicle's EVAP systems vent solenoid. The engine control module (ECM) looks for a change in the EVAP system pressures to validate that the EVAP vent solenoid has actually opened or closed the vent.

p1451 Code - Evap Emission Control Sys Vent Control Valve ...

Kelley Blue Book https://www.kbb.com > obd-ii > p1451
Replacement

https://www.google.com/search?q=2001+ford+f150+evap+systems+vent+solenoid+replacement

..

what about the EVAP solenoid valve

How do I test a purge solenoid? / Diagnosing an EVAP ...

www.ericthecarguy.com/.../13335-how-do-i-test-a-purge-solenoid-diagn...

My brothers 2000 Chevy Cavalier has a P0440 code. ... the PCM will test the circuit condition of the purge valve solenoid and vent valve solenoid so with the key ...

P0446 2000 chevy S10 4WD Replacing EVAP Vent Valve ...

? 7:54
https://www.youtube.com/watch?v=EVWDc9sM1Co
May 7, 2014 - Uploaded by omar ERA
code .P0446. ... Chevy Truck Hard To Fill Gas Tank - GM EVAP Codes P0442, P0446, P0455 or P0449 ...

EVAP Purge Solenoid Removal - YouTube

? 4:24
https://www.youtube.com/watch?v=Xj605HENFno
Feb 26, 2008 - Uploaded by richpin06a
EVAP Purge Solenoid Removal Saturn S-series. ... Hi, is thispurge can solenoid in the same location for ...

Codes or no Evap Codes, the issue is in that system
You need a schematic of the evap system, so you can
test the solenoid or valves,mainly the vent solenoid, if that
applies Not the purge valve, that is up front & opens to allow
engine vacuum to draw out fuel fumes from the tank.

your vehicle has a vent valve solenoid located on the evap canister under the back end of the vehicle. You most likely have a bad vaccuum line going to the evap caniser. Have the vehicle smoke tested to verify. If no leaks are found replace the vent valve solenoid

if your car starts after putting gas in throttle, means that you have no sufficient fuel feeding and one cause is the injection system not providing the need fuel, pressure regulator the second cause,or the fuel filter is blogged.

EVAP Vent Solenoid Control Circuit Malfunction, should just need a Evaporative Emissions (EVAP) Canister Vent Solenoid/Valve.
first test and check the wiring and make sure that its 100% the vent solenoid before you replace it, follow the steps below. you will need a volt meter and ohm meter which is available at any auto or hard ware store.
Tips:Evaporative vent solenoid is located on the rear of the frame cross member behind the fuel tank.

1. Test the voltage at the disconnected Powertrain Control Module (PCM) terminal Key On, Engine Off (KOEO).

2. If 0 volts, test voltage at the canister vent solenoid White wire.

3. If 0 volts, test voltage at vent solenoid Pink wire.

4. If 0 volts at the vent solenoid Pink wire, test at the ENG 1 labeled fuse.

5. If the fuse is B+, test at the under hood fuse block C3 32 cavity Red connector terminal F3. Should be B+.

6. If terminal is B+, trace and repair the wire from the under hood fuse block to the vent solenoid.

Hi.

P0449 means: evaporative emission (evap) canister vent solenoid valve, incorrect voltage at driver.

Check the evap. ventilation valve, wiring and and solenoid. The evaporative system is located under the vehicle near to the fuel tank.

Regards.

Ginko

The evaporative leak detection diagnostic strategy is based on applying a vacuum to the EVAP system and monitoring the vacuum decay rate. The VCM monitors the vacuum level via the fuel tank pressure sensor input. At an appropriate time, the EVAP purge solenoid and the EVAP vent solenoid turn ON, allowing the engine vacuum to draw a small vacuum on the entire evaporative emission system. If a sufficient vacuum level cannot be achieved, a large leak or an EVAP system malfunction is indicated.

The following conditions can cause this problem:
* A disconnected or malfunctioning fuel tank pressure sensor
* A missing, malfunctioning, improperly installed, or loose fuel cap
* A disconnected, damaged, pinched, or blocked EVAP purge line
* A disconnected or damaged EVAP vent hose
* A disconnected, damaged, pinched, or blocked fuel tank vapor line
* A disconnected or malfunctioning EVAP purge solenoid
* A disconnected or malfunctioning EVAP vent solenoid
* An open ignition feed circuit to the EVAP vent or purge solenoid
* A damaged EVAP canister
* A leaking fuel sender assembly O-ring
* A leaking fuel tank or fuel filler neck

Any of the above conditions can set a DTC P0440.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

The EVAP service port is located in the EVAP purge pipe between the EVAP purge solenoid and the EVAP canister. The service port is identified by a green colored cap.



Fig. Showing location of (1) Evaporative Emissions (EVAP) Canister Purge Solenoid and (2) Exhaust Gas Recirculation (EGR) Valve




Fig. EVAP Purge valve solenoid (3) mounting bolt (2) and insulator (1) on 2000-2005 4.8L, 5.3L, 6.0L Engines

Hope this help (remember rated the post).