Question about 1999 Pontiac Grand Am GT

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Service engine soon light is on code p0440 - 1999 Pontiac Grand Am GT

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Hello i can assist you Your PO-0440 code explanation is a evaporative emission control system malfunction.

Posted on Dec 29, 2010

  • John Jon Dec 29, 2010

    Please excuse me i forgot to mention your emission malfunction could be one of several related items from a gas cap to charcoal canister fuel line ,PCV ,valve .=.You will have to closely examine the car emission evaporation system closely to pin point the part malfunctioning.

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: 1999 pontiac sunfire code p0440

P0440 - Evaporative Emission (EVAP) System, this code is most often caused by leaving the gas cap loose, or off.

Posted on Sep 21, 2008

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SOURCE: diaganosed the car with P0741 and P0440 trouble codes

The P0741 code is a torque converter clutch stuck in the off position and the po 440 code is an evaportative emission control circuit malfunction. The po440 code could be the gas cap not seated properly. Niether has anything to do with the radiator.

Posted on Nov 20, 2008

maygemini
  • 147 Answers

SOURCE: Check engine light on. Code P0440.

wow thermostat >>>> shucks i believe its evep emissions code like faulty gas cap ....you can reset any computer the chck eng light will come on in 50 to 100 miles if not fixed....

Posted on May 08, 2009

alicantecoli
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SOURCE: 2000 bmw 323i service engine soon light code =

you can buy a cheap scanner that will put this light out,i have a mechanic working for me that stands on the roof ,tweeks the radio and has one foot on the brake whilst turning on the lights and he puts out nearly every service light you can think of but he wont show anyone least of all me,but if it its a 99 model iam sure you can put the light out by using a 12v electrical screwdriver with the light inside and a cable comes out the end with a clip .then going across the pins on the special BMW connector block it will go out with the resistance of the bulb across it ,but ??big but ?does it have an OBDII connector or the round BMW type because we dont have OBDII on pre 2005 cars here in spain .Now we do and guess what ??its all encrypted software used ...makes me a dinasaur

Posted on Aug 14, 2009

  • 2 Answers

SOURCE: 2000 Saturn SL2-

Click you ignition on and off 50 times and it will clear the code.

Posted on Aug 21, 2009

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How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

Aug 02, 2014 | 2000 Buick Regal LS

1 Answer

PO440


http://www.obd-codes.com/p0442
P0440 indicates the failure of the EVAP system to develop proper vacuum. If you got
and replaced a proper good quality gas cap, you have corrected the most common cause.
However, in fully searching the causes of this code (http://engine-codes.com/p0440_chevrolet.html ) (pardon the generic GM info, but will apply for you)-----you will find there are 5 other causes of the vacuum failure, which are independent of the gas cap. Your good local mechanic can sort those out; I would save your gas cap
receipt if you were advised to buy one not needed. As you probably know, your
State emission test facility checks your gas cap----so that is another way to find that specific portion of this answer,
(for their fee).
P0300 is a generic misfire code. For this, a specific Cadillac forum may be most
helpful = 2001 Deville intermittent service engine soon light code P0300
co-logo-100x100.png 2001 Deville intermittent service engine soon light code... I recently bought this car from an owner who took decent care of it but a week after i bought it, the service engine light appeared. After a few View on www.cadillacforums... Preview by Yahoo You will see that this generic code is perhaps more serious, costly, and harder
to track down than the P0440. You will also discover that P0301 is cylinder 1 misfire, P0302 is cylinder 2, and etc, etc. If you get a good diagnostic, they will generally
be able to localize the problem fairly specifically---and get a more specific fix. The person who reported this code was unhappy because he was given several ($$) fixes,
before he got one that erased the code, and was a solution. (Be forewarned ----A generic misfire can have umpteen issues--or one! !; use your own local preferred method for solving this with a mechanic who gives you good service, and stands behind what they do.)
2001 Deville intermittent service engine soon light code P0300

Jun 04, 2014 | 2001 Cadillac DeVille

3 Answers

I HAVE CODE 0440 MY SERVICE SOON LIGHT ON I FIX FUEL CUP BUT STILL ON LIGHT WHAT TO DO


P0440 - Evaporative Emission Control System Malfunction
Possible causes- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking Tech notes Loose fuel tank filler cap is the most common cause that triggers the P0440 code.

Sep 17, 2012 | 2002 Pontiac Grand Prix

2 Answers

1st code p0440, then code p0453 then p0452 now p0446


This problem is out side the gas tank , has nothing to do with the fuel pump or fuel level sending unit inside the gas tank .DTC P0446 EVAP Vent Solenoid Valve Control System . Do you know anything about automotive evaporative emission system ?
Wells EVAP Training with Sgt Tech P0440 P0441 P0442 etc

This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. The control module commands the EVAP canister purge solenoid Open and the EVAP canister vent solenoid Closed. This allows vacuum to be applied to the EVAP system. Once a calibrated vacuum level has been reached, the control module commands the EVAP canister purge solenoid Closed and the EVAP canister vent solenoid Open. The control module monitors the fuel tank pressure (FTP) sensor for a decrease in vacuum. If the vacuum does not decrease to near 0 inches H2O in a calibrated time, this DTC sets.

Mar 13, 2017 | 2000 Cadillac DeVille

1 Answer

Solution for 1999 chevy cavalier code p0440


There has been a service bulletin isued for that code. I have run into this before, also the wires comming out of the connector. That would bethe first thing to check. Here is what the bulletin states. Emissions - SES Lamp ON/DTC P0440 (EVAP) SetNotesFile In Section: 06 - Engine/Propulsion SystemBulletin No.: 02-06-04-044Date: August, 2002TECHNICALSubject: Service Engine Soon (SES) Light Illuminated, DTC P0440 Set (Replace Fuel Tank Evaporative Emissions Control System (EVAP) Vent Solenoid Harness) Models: 2000-2002 Chevrolet Cavalier2000-2002 Pontiac Sunfire ConditionSome customers may comment that the SES light is/was illuminated.A technician may find DTC P0440 is stored in the PCM.CauseThe EVAP solenoid harness may be misrouted around the rear antilock brake (ABS) wire harness causing a chaff/damage to the EVAP vent solenoid harness, setting DTC P0440.CorrectionFollow the service procedure below to diagnose and correct this condition.1. Install a Tech 2 scan tool and select the appropriate vehicle. Verify that a DTC P0440 is stored in the PCM. 2. Raise the vehicle on a hoist. Refer to Lifting and Jacking the Vehicle in General Information (SI Document ID # XXXXX).

4_9_2012_3_31_41_pm.gif

Locate and inspect the EVAP vent solenoid harness (3) routing. The harness may be routed below the ABS wiring harness (4) at the right rear corner of the fuel tank, causing stress on the EVAP solenoid harness (3).



4_9_2012_3_32_10_pm.gif

4.Disconnect the EVAP vent solenoid harness (3) from the EVAP vent solenoid (2) and connector C313 (1). Discard the EVAP vent solenoid harness (3).


5.Connect the new EVAP vent solenoid harness (3), P/N 22687059, to the EVAP vent solenoid (2), route the harness above the rear ABS harness (4) and connect the EVAP vent solenoid harness (3) to connector C313 (1).


6.Lower the vehicle.


7.Clear the DTC's with the Tech 2 scan tool.



If all of the wires are good you will want to check for any leaks in the evap system.



Hope helps.

Apr 09, 2012 | 1999 Chevrolet Cavalier

2 Answers

Service engine soon code po440 2002 chevy trailblazer


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
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
Get a new gas cap first to try.
thanks

Jul 30, 2010 | 2003 Chevrolet TrailBlazer

4 Answers

2000 Saturn SL2-" Service engine soon light" won't go out, even after having oil changed. Any ideas? Advance Auto's light says code: P0440.


You have to have one of the parts stores clear it. Did you check you gas cap. P0440 Is an emissions codes usually caused from a loose gas cap

Aug 20, 2009 | 2000 Saturn SL

1 Answer

'96 Chevy Blazer Service Engin Soon codes P0440 P0700 P1100


if you are throwing 79 codes it is probably a computer issue.need to clear and see what comes back up. 440 is not a leak but a malfunction check purge solenoid

Dec 17, 2008 | 2000 Chevrolet Blazer

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