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1998 blazer 4door p0440 evap emissions system problem im broke and i need help to fix it

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Posted on Jan 02, 2017

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SOURCE: code p0445 evap. emission control system leak,large

that means you are driving whit the fuel cap loose or missing or you have a vapor leak on the vapor lines coming from the fuel tank to the engine, have your car inspect for leaks, but make sure to ask your mechanic if he has the smog machine to aply smog to the evaporative system that,s the easiest way to fin a leak,

Posted on May 31, 2008

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SOURCE: codes P0440 and P0300

the evap can simply be the gaz cap the 300 check for a good spark you may need wire and plug be carefull for those coil they offent defect good luck pierre

Posted on Jun 23, 2008

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SOURCE: 2002 chevy trailblazer what does EVAP Emission

most p0440 codes are related to gas cap problem check cap and reset code if it the problem code pops problem with a fuel line follow lines from filler neck down and under vehicle[ look for smell of gas or cracked line] all the way up to throttle body if have leak fix asap

Posted on Sep 26, 2009

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SOURCE: Got error codes P0440, P0440 (pd), and P0442 which

It is probably a sensor that goes by the gas tank. I belive it is called a Fuel Vent Sensor Circuit. That should fix the problem.

Posted on Dec 16, 2009

  • 1 Answer

SOURCE: codes P0440 and P0300

I have a 2005 chevy suburban and it's getting a p0300 code. I replaced the plugs and wires and still have the same problem . It runs rough at idle in gear. What should I check?

Posted on Mar 15, 2010

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I recently purchased this 1999 Chevy Blazer and it wont pass inspection because the OBD2 Diagnostic trouble code states it's problem is, code P0440-Evaporative Emission System. The guy said it looks like...


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.

Mar 08, 2011 | 1999 Chevrolet Blazer

1 Answer

Check engine light is on- reason- Evap emission control system malfunction- code PO440


Causes: A code P0440 could mean one or more of the following has happened:
* The gas cap is not installed or working properly
* The purge solenoid has failed
* The canister is plugged and not working properly

Possible Solutions: With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
* Inspect the EVAP system for cuts/holes in tubes/hoses
* Inspect for damaged or disconnected hoses around the Evap purge solenoid
* Check and/or replace the sensor
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks

Hope helps (remember to rate this).

Oct 12, 2010 | 2002 Chevrolet Blazer

1 Answer

2000 chevy blazer w/ trouble code P0440, stall when hot outside and when you run the air.


P0440 - Evaporative Emission (EVAP) System .The most common cause for this code is a loose or bad gas cap.The running issue is unlikely caused by this.Is that the only code present?

Aug 30, 2010 | 2000 Chevrolet Blazer

1 Answer

What p0440 mean in the cars


P0440 OBD-II - Evaporative Emission Control System Malfunction


What does that mean?
This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. 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.



Symptoms:
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook You likely won't notice any drivability problems.



Causes:
A code P0440 could mean one or more of the following has happened:
  • The gas cap is not installed or working properly
  • The purge solenoid has failed
  • The canister is plugged and not working properly

Possible Solutions:With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
  • Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks

Hope helps (remember rated this).

Jul 05, 2010 | 1999 Chevrolet Blazer

3 Answers

What is a p0440 problem?


Hi there,

Oldsmobile code P0440 refers to: Evaporative Emission System

This means there is a problem with the Evap System, and you will need to inspect the related components:

- Purge Solenoid:

Related Symptoms
  • Stalls after start with a hot engine
  • Poor Fuel economy
  • Emission related faults
- Evap Canistor: Check evap canistor for loose carbon.

- Evap Canistor Vent Valve:

Related Symptoms
  • Poor fuel economy
  • Stalls after start
  • Emissions related failure DTC codes
Hope this helps...

Cheers,

Nov 12, 2009 | 2001 Oldsmobile Alero

2 Answers

P0440, P0441, P0446


where is Evap Emission Control System Purge Flow fault

Jul 02, 2009 | 2000 Toyota Celica

1 Answer

PO 1665 code 1998 Buick Rivera, PO 440 code


EVAP is for Evaporative emissions control system, so no this is not EGR, that is Exhaust Gas Recirculation system, as far as the P1665 goes it is related to the other trouble code P0440, u will need to replace the EVAP system Purge flow control solenoid. This should correct both problems after u replace the part disconnect the battery for 5 min's to reset system.

May 14, 2009 | 1998 Chevrolet Monte Carlo

2 Answers

1996 Chevy Blazer check engine light on


More then likely its the Canister Purge Solenoid. you can find it online at www.autozone.com the part number is PV140. And to replace it on blazer you have to remove the spare tire. Alot of people don't know where this part is so I hope this helps you and good luck.

Oct 06, 2008 | 1996 Chevrolet Blazer

1 Answer

Codes P0440 and P0300


the evap can simply be the gaz cap the 300 check for a good spark you may need wire and plug be carefull for those coil they offent defect good luck pierre

Jun 21, 2008 | 1998 Chevrolet Cavalier

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