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What can cause a evap purge error on a 1999 grand caravan?

Have an evap purge error code. not sure what the actual code is, it's an online friend asking for help. evap purge solenoid has been changed.

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  • Dodge Master
  • 21,873 Answers

You really need the code to proceed. It could be a leak in the vent system or pressure where no pressure should be.

Posted on Feb 13, 2014

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Posted on Jan 02, 2017

  • 275 Answers

SOURCE: 2004 Pontiac Grand Prix Evaporative Canister

you should be able to fix it look for a can near the fuel tank that has vacuum hoses coming out of it and you should be able to just buy the bad solenoid

Posted on Nov 03, 2008

  • 160 Answers

SOURCE: 2006 saturn ion 2.2L engine code came up for EVAP purge/vent

replace your pvc vavle then have your cars underbody washed

Posted on Mar 15, 2009

savdragon
  • 37 Answers

SOURCE: Mustang GT 4.6 EVAP Canister Purge Valve Location?

You will need to remove the right front wheel & wheel well liner. The canister purge valve is behind the cover. It should have two tube going into the bottom and one on the side near the top.
You can fix it!
If this helps you out please rate me!
Brett

Posted on Mar 19, 2009

  • 1 Answer

SOURCE: PO 496 emissions code - 2004 Pontiace Grand Am

I could be the purge valve.

Posted on Sep 25, 2009

  • 3 Answers

SOURCE: I have 1997 F150,check engine light came on, took

maybe a fuse is blown? did you have the mechanic check the fuses? or even check all your relays and wiring?

Posted on Dec 10, 2009

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I have a 1999 Jeep Grand Cherokee limited,V8 Quadra-trac which dies on the road; dash gauges drop; "no key" lite displays on dash. Restarts after cools. Two codes P 0443 and 0308 are showing? help


code p 0443 refers to evaporative emission (EVAP) canister purge valve ---circuit malfunction====causes ---wiring--- EVAP canister purge valve ---ECM
code p0308 refers to cylinder 8 ---misfire detected ====causes ---engine mechanical fault ---wiring----ignition/ fuel system--- injector---ECT/MAF sensor---ECM
I am thinking here that it restarts , not after cooling , but after the vacuum in the fuel tank has lessened and allowed fuel to be pumped to the injectors and the fuel pressure is re-established
if that is the case then a weak injector or partially blocked injector will misfire under those conditions
I would fix the purge valve so that the tank vents properly and the rest may go away

Feb 18, 2017 | 1999 Jeep Grand Cherokee Limited

1 Answer

Toyota echo won't start code 440 441 446


Error Code: P0440
Fault Location:
Evaporative Emission (EVAP) System - Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Soution:
Check Evaporative Emission (EVAP) System Sealing.
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .

Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Solutions:
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
Perform Output Test.
Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .
Check Evaporative Emission (EVAP) Canister.
Perform Basic Setting.
Check Pipes between Tank Breathing and Throttle Body.

Error Code: P0446
Fault Location:
Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
Possible Cause:
Wiring harness.
Evaporative emission (EVAP) canister purge valve.
Engine control module (ECM).

Feb 25, 2013 | 2002 Toyota ECHO

1 Answer

Po456 dodge caravan


P0456 - Evaporative Emissions System - Small leak detected
The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the fuel tank pressure (FTP) sensor. When the sensor indicates a small leak in the EVAP system, this code is set.

Potential Symptoms: There will likely be no noticeable symptoms other than the Malfunction Indicator Lamp (MIL). This is because the EVAP system is a closed system and only controls fuel tank vapors, not engine management.

Causes: Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:
A small leak in any of the EVAP hoses or fuel tank hoses
A small leak in the purge valve or vent valve
The EVAP Canister may be leaking

Possible Solutions:
First, using a scan tool activate the vent solenoid, sealing the system. Then monitor the fuel tank pressure (FTP) sensor. If the system is sealing properly, the number will stay consistent. If is isn't, the pressure sensor will show that as well. If the system slowly leaks, use a smoke machine and watch for smoke exiting the system at any EVAP component. Any where there is smoke exiting the system, that is the faulty component. Do not pressurize the EVAP system with air pressure. Doing so can damage the purge and vent solenoids in the system.

Hope this helps.

Jun 03, 2011 | 2002 Dodge Grand Caravan

1 Answer

I got a Error Code P1441 Definition EVAP System Flow During Non-Purge Conditions Possible Causes: EVAP purge valve, purge pipe, or the charcoal canister has a temporary blockage (this fault could...


P1442 usually gas cap. P1449 usually vent solenoid. P1441 usually always a faulty FTP sensor. Very problematic to Malibu, Grand Am Cavaliers and Aleros. That would be my first area to check. They are also known for poor wiring connections at the Left rear passthru connector to the fuel tank and vent solenoid, but not necessarily for that code.

Jan 25, 2011 | 2001 Pontiac Grand Am SE

2 Answers

Code says evaporator purge solenoid


Which code specifically? Do not assume you need a new solenoid. Our recommendation will depend on the specific code and some troubleshooting results. I usually recommend checking over all the EVAP vacuum lines and the gas cap too whenever there is a purge valve code. Check the vacuum lines at the cannister in the left rear bumper. I will paste info on the purge solenoid below.

P0440 Evaporative emission (EVAP) system - malfunction

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


P0441 Evaporative emission (EVAP) system - incorrect flow detected

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve


P0442 Evaporative emission (EVAP) system - small leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


P0443 Evaporative emission (EVAP) canister purge valve - circuit malfunction

Possible causes: Wiring, EVAP canister purge valve, ECM


P0444 Evaporative emission (EVAP) canister purge valve -open circuit

Possible causes: Wiring open circuit, EVAP canister purge valve, ECM


P0445 Evaporative emission (EVAP) canister purge valve -short circuit

Possible causes: Wiring short circuit, EVAP canister purge valve, ECM


P0450 Evaporative emission (EVAP) pressure sensor - circuit malfunction

Possible causes: Wiring, EVAP pressure sensor, ECM


P0455 Evaporative emission (EVAP) system - large leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve


P0456 Evaporative emission system - very small leak detected

Possible causes: Mechanical fault, hose connection(s), EVAP pressure "sensor


P0457 Evaporative emission system - leak detected (fuel cap loose/off)

Possible causes: Mechanical fault, hose connection(s), EVAP pressure sensor


P0458 Evaporative emission system, purge control valve -circuit low

Possible causes: Wiring short to earth, EVAP valve


P0459 Evaporative emission system, purge control valve -circuit high
Possible causes: Wiring short to positive, EVAP valve


Evaporative Emission Purge Solenoid

Description & Operation
The duty cycle EVAP canister purge solenoid (DCP) regulates the rate of vapor flow from the EVAP canister to the intake manifold. The Powertrain Control Module (PCM) operates the solenoid.
During the cold start warm-up period and the hot start time delay, the PCM does not energize the solenoid. When de-energized, no vapors are purged. The PCM de-energizes the solenoid during open loop operation.
The engine enters closed loop operation after it reaches a specified temperature and the time delay ends. During closed loop operation, the PCM cycles (energizes and de-energizes) the solenoid 5 or 10 times per second, depending upon operating conditions. The PCM varies the vapor flow rate by changing solenoid pulse width. Pulse width is the amount of time that the solenoid is energized. The PCM adjusts solenoid pulse width based on engine operating condition.
Removal & Installation
The duty cycle evaporative (EVAP) canister purge solenoid is located in the engine compartment near the brake master cylinder.

  1. Disconnect electrical connector at solenoid.
  2. Disconnect vacuum lines at solenoid.
  3. Lift solenoid slot from mounting bracket for Removal & Installation.

To Install:
  1. Position solenoid slot to mounting bracket.
  2. Connect vacuum lines to solenoid. Be sure vacuum lines are firmly connected and not leaking or damaged. If leaking, a Diagnostic Trouble Code (DTC) may be set with certain emission packages.
  3. Connect electrical connector to solenoid.
Purge solenoid location:

jturcotte_65.gif
EVAP cannister location:
jturcotte_66.gif

Nov 05, 2010 | 2000 Jeep Grand Cherokee

1 Answer

I'm having problems with my 2000 pontiac grand am! It is dying sometimes when idling in park, or while at a stop sign/light and sometimes when i begin to accelerate. The car codes were 0446 and 0452(evap...


The Manifold (Air) Absolute Pressure (MAP) and the Evaporative Emission Pressure circuits are not right. The fact that you car keeps cutting out is a further clue. I suspect that the purge and vent valves on the evap system of being open at the wrong times. This would account for the ingress of un-metered air causing leaning of the fuel mix leading to stalling, it would also account for the expected readings from the MAP sensor and would also account for the evap system errors. To check simply disconnect the evap to intake manifold tube and securely block the exposed ends. This should resolve the stalling and avoid further 0105 error codes. If the evap purge valve is at fault then the 0452 should also disappear, however if the evap vent valve is at fault the error code will persist.

Jul 26, 2010 | 2000 Pontiac Grand Am GT

1 Answer

I have a error code for the leak detection pump where is it located i think it is mounted in front of the airbox on the wall the rad is mounted on am i right or wrong thanx


most EVAP. leaks are closer to the gas tank, check your vaccuum hoses and purge valve..prob. purge valve ..a common problem

Jul 19, 2010 | 1999 Jeep Grand Cherokee

3 Answers

Po446 evap vent code where is the evap vent located


Some might have an ses p0446, evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats suppose to eliminate this issue.

Basically the problem is, the evap purge vent valve gets clogged with dirt, especially if the truck is used in dirty conditions. Well I figured there had to be a cheaper way to cure this problem.

Here it is:
1) find the location of the vent valve; its under the truck, locate the charcoal canister on the front of the gas tank and trace the vent line to the vent valve.
2) Take the bracket loose with a 5/8 wrench.
3) Spin the valve around so the side with the hole is facing you.
4) Take an air compressor and blow the vent valve out.
5) reinstall and clear the code and it's fixed.

Now I know the updated part from gm is supposed to keep the valve from clogging ever again, but why spend the money when all you have to do is blow out the vent valve every 50k-100kmi and save your $$$!

Subject: DTC P0446 (Restricted/Blocked EVAP Vent Path) Set, Service Engine Soon (SES) Lamp Illuminated (Replace Hose/Evaporative Emission (EVAP) Canister Vent Asm) #02-06-04-037A - (02/02/2005)
Models:
- 1999-2003 Chevrolet Silverado Models
- 1999-2003 GMC Sierra Models
--------------------------------------------------------------------------------
This bulletin is being revised to add model years. Please discard Corporate Bulletin Number 02-06-04-037 (Section 06 -- Engine/Propulsion System).
--------------------------------------------------------------------------------
Condition
Some customers whose vehicles are operated in dusty type environments, such as farming or mining off-road type applications, may comment about the illumination of the instrument panel SES light, with a DTC of P0446 (Restricted/Blocked EVAP Vent Path) being set.

Cause
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Part Number 15086429 Hose Asm-Evap Emis Cnstr Vent


Removal & Installation
Purge Solenoid Valve-2.2L (L61) Engine
  1. Disconnect the evaporative emission (EVAP) canister purge valve harness connector.
  2. Disconnect the vacuum pipe from the EVAP canister purge valve.
  3. Disconnect the purge pipe from the EVAP canister purge valve.
  4. Remove the EVAP canister purge valve and bracket.
  5. Remove the EVAP canister purge valve from the purge bracket.
  6. Inspect for carbon release in the EVAP canister purge valve ports.
To install:
  1. Install the EVAP canister purge valve on to the purge bracket.
  2. Install the EVAP canister purge valve and bracket. Tighten the purge bracket nut to 71 inch lbs. (8 Nm).
  3. Connect the purge pipe to the EVAP canister purge valve.
  4. Connect the vacuum pipe to the EVAP canister purge valve.
  5. Connect the EVAP canister purge valve harness connector.
  6. Remove the air cleaner outlet resonator.
  7. Disconnect the EVAP canister purge valve harness connector.
  8. Disconnect the engine purge pipe from the EVAP canister purge valve.
  9. Disconnect the engine vacuum pipe from the EVAP canister purge valve.
  10. Remove the EVAP canister purge valve mounting bracket attaching bolt.
  11. Remove the EVAP canister purge valve along with the mounting bracket.
  12. Installation is the reverse of the removal procedure. Tighten the bracket bolts to 71 inch lbs. (8 Nm).

Purge Solenoid Valve-2.4L Engines
  1. Remove the front purge pipe from the evaporative emission (EVAP) canister purge valve.
  2. Remove the rear purge pipe from the EVAP canister purge valve.
    NOTE The EVAP canister may have released carbon particles, which caused this part to fail, and may cause damage to other components. Check the EVAP canister for loose carbon before returning the vehicle to service.
  3. Disconnect the EVAP canister purge valve electrical connector.
  4. Insert a screwdriver between the EVAP canister purge valve and the mounting bracket in order to release the lock tab.
  5. Remove the EVAP canister purge valve mounting bracket attaching nut, if replacing the bracket.
  6. Remove the bracket.
To install:
  1. Install the mounting bracket and the attaching nut for the EVAP canister purge valve. Tighten the nut to 71 inch lbs. (8 Nm).
  2. Slide the EVAP canister purge valve onto the mounting bracket. Make sure the lock tab locks the valve in place.
  3. Connect the EVAP canister purge valve electrical connector.
  4. Connect the rear purge pipe to the EVAP canister purge valve.
  5. Connect the front purge pipe to the EVAP canister purge valve.

Vent Solenoid Valve-2.2L & 2.4L Engines
  1. Raise the vehicle
  2. Loosen the EVAP canister vent valve hose clamp and slide the clamp down the hose away from the EVAP vent valve hose connection.
  3. Remove the hose from the EVAP canister vent valve.
  4. Remove the EVAP canister vent valve by placing a pry bar between the valve and mounting surface, and moving the valve forward.
  5. Remove the clip from the EVAP canister vent valve harness connector
  6. Disconnect the EVAP canister vent valve harness connector.
To install:
  1. Connect the EVAP canister vent valve harness connector
  2. Install the clip into the EVAP canister vent valve harness connector.
  3. Install the EVAP canister vent valve by pushing the mounts into the original holes.
  4. Lubricate the hose end with lubricant.
  5. Install the hose to the EVAP canister vent valve.
  6. Slide the EVAP canister vent valve hose clamp down on to the hose connection at the EVAP canister vent valve.
  7. Lower the vehicle.

Hope this help (remember commetn and rated this).

Apr 21, 2010 | 2000 GMC Jimmy

2 Answers

I have two problems with my 05 Grand Prix. (Misfire & Evap Leak)


Repalce the plug and switch the coil pack with another one . One thats on the car A GOOD muffler shop will let you know if your converter is bad. About 100 to 150.00 to replace. Get the universal one will work fine.

Dec 10, 2009 | 2005 Pontiac Grand Prix

1 Answer

Getting the error code P0442 with a ODB2 on 2004 Caravan


Code 442 indicates a vapor leak in the EVAP control system. Fuel vapors are routed through hoses to the EVAP charcoal canister, then via purge control valve, are rerouted through intake when engine running. Bad gas cap seal is the usual culprit, which you can try cleaning the seal & filler neck where it screws in, then erase codes & try again & see if it comes back, or may require new gas cap. Other areas to look is at hoses running to & from canister & purge valve for any crack that may be a source of leak.

Jun 23, 2009 | 2004 Dodge Caravan

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