Question about 2005 Jeep Grand Cherokee

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Were is a nvld pressure switch - 2005 Jeep Grand Cherokee

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It can be attached to the charcoal canister (by the fuel tank) or up behind the inner fender well of the left rear tire. But before you go replacing an expensive part. you should have it put on a scanner to find the exact problem. You could only need a gas cap. This is an EVAP problem.

Posted on Dec 06, 2014

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1 Answer

2003 DURANGO NVLD NOT GETTING ANF POWER. COULD THERE BE A SHORT OR SOMETHING ELSE WHAT TO DO NEED HELP.


You need to go back to the shop & have them continue on
& test the evap system & nvld

You do not change parts based on codes or someone
telling you there is no power to a part

You were told there was no power to the part & the shop should have done the necessary testing to restore it

May 07, 2014 | 2001 Dodge Durango

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Engine codes PO 128, PO 440, PO 456 and PO 622


Trouble Code: P0128

Thermostat Rationality Test

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Check the operation of the thermostat (it may be stuck open).ECT Sensor is contaminated, damaged or it has failed.Inspect for low coolant level or for an incorrect coolant mixture.Trouble Code: P0440

EVAP Purge System Fault

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EVAP purge valve vacuum supply is leaking or clogged.EVAP purge valve is stuck closed.EVAP purge solenoid has failed.NVLD assembly (leak detection) is damaged or has failed.NVLD switch circuit is open or the NVLD switch has failed.Ground circuit is open.PCM has failed.Trouble Code: P0456

EVAP Small Leak (0.020") Detected

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.EVAP fuel tank or canister vapor hoses leaking or damaged.EVAP system component leaking, fuel cap loose or missing.Leak detection pump damaged or leaking.Trouble Code: P0622

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Generator field control circuit is open or is shorted to ground.Generator field control circuit is shorted to system power (B+).Generator field ground circuit is open.Generator is damaged or PCM has failed.PCM has failed.Here are the codes and causes.

Nov 25, 2012 | 2002 Dodge Intrepid

1 Answer

How to find and change NVLD pump 2002 concorde /same as M 300 -seabring


The NVLD (natural vacuum leak detection) this uses a natural device that follow gas principles,the device is a open vacuum switch,a normally closed solenoid,it is actuated by a solenoid and a diaphragm,The NVLD is located on the atmospheric vents side of the canister on top of the canister outlet8_19_2012_8_24_01_pm.gif

Aug 19, 2012 | 2002 Chrysler Concorde

1 Answer

What is the code p4052


P0452 Evaporative Emmission System Pressure Sensor/Switch Low Input.

You need a new NVLD ( Natural Vapor Leak Detector ) sensor.

Jul 31, 2011 | 2007 Chrysler PT Cruiser Touring Hatchback

1 Answer

My 03 dodge dakota keeps giving me a engine light. When I checked codes it tells me po499. I cant find po499 do you know what it is and how to fix?


CODE PO499 - NVLD CANISTER VENT SOLENOID CIRCUIT HIGH. SOUND LIKE THE NVLD CANISTER VENT SOLENOID IS FAULTY.

Mar 29, 2010 | 2003 Dodge Dakota Club Cab

1 Answer

How do i replace the natural vacuum leak detection pump on a 2005 dodge dakota?


Vehicles equipped with NGC engine control modules use an NVLD pump and system. Vehicles equipped with JTEC engine control modules use a leak detection pump. Refer to Leak Detection Pump (LDP) for additional information.
The Natural Vacuum Leak Detection (NVLD) system is the next generation evaporative leak detection system that will first be used on vehicles equipped with the Next Generation Controller (NGC). This new system replaces the leak detection pump as the method of evaporative system leak detection. This is to detect a leak equivalent to a 0.020 (0.5 mm) hole. This system has the capability to detect holes of this size very dependably.


Removal & Installation
  1. Raise and support vehicle.
  2. Remove left-rear tire.
  3. Remove plastic shield (4) in front of left-rear tire. Access to both the EVAP canister (1) and NVLD pump (6) is from the area in front of the removed tire.
  4. Disconnect electrical connector at NVLD pump.
  5. Remove vapor line at NVLD pump. Pry outward on tab (3) and rotate pump (6) clockwise about 70 for removal.
  6. Remove NVLD pump O-ring (5) from EVAP canister (1).
To Install:
  1. Install new NVLD pump O-ring (5) to EVAP canister (1).
  2. Position NVLD pump (6) into EVAP canister (1).
  3. Rotate pump (6) until tab aligns with notch in EVAP canister (1).
  4. Carefully install vapor/vacuum lines to NVLD pump.
    WARNING The vapor/vacuum lines and hoses must be firmly connected. Check the vapor/vacuum lines at the NVLD pump, filter and EVAP canister purge solenoid for damage or leaks. If a leak is present, a Diagnostic Trouble Code (DTC) may be set.
  5. Connect electrical connector to pump.
  6. Install plastic shield in front of left-rear tire.
  7. Install left-rear tire.

    2e35911.jpg
    Fig.


    aa300e1.jpg
    Fig.

Have a nice day (remember rated this help).


Mar 05, 2010 | 2004 Dodge Dakota

2 Answers

Engine trouble code 0499 2004 dodge dakota manual 5 speed 4.7 4x4


P0499 Evaporative Emission System Vent Valve Control Circuit High, REPLACE THE SOLENOID.

Jun 24, 2009 | 2004 Dodge Dakota

1 Answer

I have 2005 neon sxt keep having code po457 evap emmission loose cap /off replaced cap from chrysler ck eng light comes back on same code anybody have any suggestions


fuel cap is just one of the causes. Here are 2 others:
  • possible vacuum leak
  • NVLD switch is stuck or malfunctioning
NVLD switch communicates with your car's computer. A bad switch will throw a P0457 error code. Check for a vacuum leak 1st but if none is found, the NVLD switch should be changed.
Below is a link that explains more thoroughly what the module does; I do wish you the best of luck with your Neon and hope you found this information helpful. Take care!
http://www.search-autoparts.com/searchautoparts/article/articleDetail.jsp?id=377511&sk=&date=&pageID=3

May 11, 2009 | 2005 Dodge Neon

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