Question about 1996 Chevrolet Monte Carlo

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Wires loose or disconnected from the EVAP canister purge valve, not sure what they go too please help! 1996 Chevrolet Monte Carlo LS

Car was messing up and i was told it was fuel filter, so i changed it and car still wont start, will crank stay on for a few secs the cut off. I opened the hood fand started exploring only to find wires dangling, hoses not in place, etc. etc. i dont know what the loose wires go too!

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  • Melissa
    Melissa Mar 31, 2015

    i bought the car from a friend about a week ago and was desperate for a car. i didnt even think to look under the hood. where is the charcoal canister at? i was at my car today and noticed on the passenger side firewall there is what appears to be a connection to something it has alot of wires. Could you tell me what that is?

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Start erradicating all the squirrels that eat wiring .

Posted on Mar 31, 2015

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  • Chevrolet Master
  • 880 Answers

The dangling wires go to the canister control valve on the charcoal canister. this is unlikely to be all of your problem. the fuel pump on this model is in the fuel tank and is usually the culprit in this scenario

Posted on Mar 30, 2015

Testimonial: "oh and also what do i need to do about the wires just hanging there?"

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1 Answer

What does code p1447 mean ...???


The code says "evap purge flow monitor fault"
Possible causes include ...
- EVAP canister purge volume control solenoid valve stuck closed.
- EVAP control system pressure sensor and its circuit.
- Loose, disconnected, or improper connection of rubber tube.
- Blocked rubber tube.
- Blocked or bent rubber tube to MAP/BARO switch solenoid valve.
- Cracked EVAP canister.
- EVAP canister purge volume control solenoid valve.
- Closed Throttle Position Switch.
- Improper connection of one-way valve.
- Blocked purge port.
- EVAP canister vent control valve.


This is a "jackpot" code. It points to so many possible causes as to be almost useless.

Feb 15, 2013 | 1996 Nissan Maxima

1 Answer

Engine light code p0455 chev monte carlo


Hello,The problem is that the EVAP system is not able to achieve or maintain vacuum during the diagnostic testThe control module tests the evaporative emission (EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running the test are met, the control module commands the EVAP canister purge solenoid valve OPEN and the EVAP canister vent solenoid valve CLOSED . This allows engine vacuum to enter the EVAP system. At a calibrated time, or vacuum level, the control module commands the EVAP canister purge solenoid valve closed, sealing the system, and monitors the FTP sensor input in order to determine the EVAP system vacuum level. If the system is unable to achieve the calibrated vacuum level, or the vacuum level decreases too rapidly, the PCM will set the code you now have.So, you either have a stuck open purge valve, a stuck open vent valve, a false reading fuel tank pressure sensor, or a cracked/broken EVAP line.

Sep 21, 2012 | 2004 Chevrolet Monte Carlo

1 Answer

I have a 1999 Monte that builds pressure in the gas tank and need help because it has pop two gas tanks why is it building pressure .


Back by your tank, there is a vapor canister with a vent valve on it. That valve is supposed to let vapor from the tank into the canister. Check to see if the valve is working. You can test it by connecting it directly to the battery with some jumper wires. Once in the canister, the vapors are opened to the engine vacuum for burning by the purge valve once the car is warmed up and on the road. If the vent valve is working, but pressure is still building, the problem can be the purge valve at the engine. You can tell this is the problem if the cannister is full of liquid gas. Normally, and depending on the failure mode, these failures would set the engine light. If the light is on, get a scan to see where the problem is. Please let me know if you have more questions, and thanks for using FixYa.

vent valve/canister:
jturcotte_522.jpg

Jun 16, 2011 | 1999 Chevrolet Monte Carlo

2 Answers

Codigo p1440


EVAP System Vent Circuit Malfunction

This diagnosis detects leaks in the Evaporative Emission (EVAP) purge line using of vapor pressure in the fuel tank. The EVAP canister vent control valve is closed to shut the EVAP purge line. The vacuum cut valve bypass valve will then be opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP control system pressure sensor can now monitor the pressure inside the fuel tank. If pressure increases, the Engine Control Module (ECM) will check for leaks in the line between the vacuum cut valve and EVAP canister purge volume control solenoid valve.

Possible causes
- Incorrect fuel tank vacuum relief valve
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Leak is in line between intake manifold and EVAP canister purge volume control solenoid valve
- Foreign matter caught in EVAP canister vent control valve
- EVAP canister or fuel tank leaks
- EVAP purge line (pipe and rubber tube) leaks
- EVAP purge line rubber tube bent
- Blocked or bent rubber tube to EVAP control system pressure sensor
- Loose or disconnected rubber tube
- EVAP canister vent control valve and the circuit
- O-ring of EVAP canister vent control valve is missing or damaged
- EVAP canister is saturated with water
- EVAP control system pressure sensor
- Absolute pressure sensor

Possible solution
- Loose fuel filler cap
- Leaking fuel filler cap


Hope helps (remember to rate this answer).

Jan 05, 2011 | 2000 Hyundai Sonata

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

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

Describe your 1996 Ford Explorer Problem..trouble


Diagnostic Trouble Code (DTC) P0443 indicates a failure in the EVAP canister purge valve circuit.
Possible causes:
  • VPWR circuit open.
  • EVAP canister purge valve circuit open.
  • EVAP canister purge valve circuit shorted to PWR GND.
  • EVAP canister purge valve circuit shorted to VPWR.
  • Damaged EVAP canister purge valve.
  • Damaged PCM.

Jul 10, 2009 | 1996 Ford Explorer

2 Answers

P0441 EVAP Control System Incorrect Purge Flow


Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Evaporative Emission (EVAP) Canister Purge Regulator Valve faulty/jammed.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
Evaporative Emission (EVAP) Canister Sealing faulty.
Pipes between Tank Breathing and Throttle Body leaky/blocked.
Hose connection(s).
Intake leak.
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.
VSV connector near air filter box disconnected.

Jun 15, 2009 | 1996 Chevrolet Monte Carlo

1 Answer

'96 Chevy Monte Carlo- codes P0441 and P1655


it will be the evap solenoid that will be the problem,not sure where it is in that car, sorry

May 17, 2009 | 1996 Chevrolet Monte Carlo

1 Answer

1996 monte carlo fault codes po300, 441, 705,


THESE ARE FROM THE GM CODE DIFINITION MANUAL, U NEED TO TAKE THIS TO THE DELAER, U HAVE SOME SERIOUS PROBLEMS TO GIVE THIS MANY CODES.

P0300 - Engine Random Misfire Detected
P0441 - Evaporative Emission Control System Incorrect Purge Flow
P0705 - Trans Range Switch Circuit
P1106 - Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
P1441 - Evaporative Emission (EVAP) System Flow During Non-Purge
P1662 - Cruise Lamp Control Circuit
P1672 - Low Engine Oil Level Lamp Control Circuit
P1870 - Transmission Component Slipping

Mar 24, 2009 | 1996 Chevrolet Monte Carlo

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