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code p0499

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Old 08-03-2014, 06:14 PM
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Default code p0499

scanner says evaporative emission vent valve solenoid malfunction circuit high. does that mean my solenoid is bad or some other issue
 
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Old 08-03-2014, 07:51 PM
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Welcome to the forum.

The solenoid can be "bad" or the circuit could be open.

What year/engine/trans?
 
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Old 08-04-2014, 05:48 AM
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2004, 3.7
 
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Old 08-04-2014, 10:30 AM
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automatic trans.
 
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Old 08-04-2014, 10:59 AM
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I'm not familiar with the 3.7 but on the 4.7 it is usually mounted near the power brake booster on a little bracket.

Disconnect the harness. Ohm out the solenoid, it should read between 7.5 to 8.5 ohms.

Make sure the connector is clean and tight.
 
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Old 08-04-2014, 06:53 PM
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thanks, for the info. it might be a couple days be fore i can check it
 
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Old 08-05-2014, 05:11 PM
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i'm getting 14.5 ohms.
 
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Old 08-05-2014, 07:36 PM
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Looking at this some more the code is for the NVLD vent solenoid, the one I was looking at is the evap purge solenoid - sorry.

The leak detection pump solenoid is on the pump, under the battery tray it's the round looking thing. The solenoid should read 7.5 to 8 ohms. There are 4 pins on the connector, pins 2 and 3 are the solenoid.
 
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Old 08-05-2014, 07:51 PM
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thanks , i'll try that next
 



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