Question about 2003 Saturn VUE

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What does po440 on a 2003 saturn vue mean with a service engine soon light on

Posted by chelsiercorm on

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2 Answers

Anonymous

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  • Expert
  • 117 Answers

That is a problem in the evaporative emission control system.
Could be anything causing it
Clogged filter in the charcoal canister
A leak in one of the vacuum lines
The purge valve not working,,,etc.
The best thing is to take it and have it checked out, they might have to do a smoke test to find the problem.
All they do is inject smoke into the system, if there is a leak the smoke will come out of it. All it takes is a pin hole in these emission systems to screw it all up.

Posted on Aug 13, 2010

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Duane Wong

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  • Saturn Master
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P0440 Evaporative Emission System
P0441 Evaporative Emission System Incorrect Purge Flow
P0442 Evaporative Emission System Leak Detected (small leak)
P0443 Evaporative Emission System Purge Control Valve Circuit
P0444 Evaporative Emission System Purge Control Valve Circuit Open
P0445 Evaporative Emission System Purge Control Valve Circuit Shorted
P0446 Evaporative Emission System Vent Control Circuit
P0447 Evaporative Emission System Vent Control Circuit Open
P0448 Evaporative Emission System Vent Control Circuit Shorted
P0449 Evaporative Emission System Vent Valve/Solenoid Circuit
P0450 Evaporative Emission System Pressure Sensor/Switch
P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance
P0452 Evaporative Emission System Pressure Sensor/Switch Low
P0453 Evaporative Emission System Pressure Sensor/Switch High
P0454 Evaporative Emission System Pressure Sensor/Switch Intermittent
P0455 Evaporative Emission System Leak Detected (large leak)
P0456 Evaporative Emission System Leak Detected (very small leak)
P0457 Evaporative Emission System Leak Detected (fuel cap loose/off)
P0458 Evaporative Emission System Purge Control Valve Circuit Low
P0459 Evaporative Emission System Purge Control Valve Circuit High
---
The Evaporative Emission Control System has a problem.

It didn't red flag any specific part of the system with any other codes?

Try to have the engine light 'cleared' using a scanner, and then see how long it takes to come back.

Posted on Aug 13, 2010

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3 Related Answers

emissionwiz

Marvin

  • 85239 Answers

SOURCE: service engine soon light on 2003 Saturn Vue

Here is the definition of the code in GM manual:
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature, this indicates the engine is running cold, u need a thermostat

Posted on Feb 12, 2009

Anonymous

  • 2 Answers

SOURCE: 2002 Saturn Vue V6 Loss of Power

Yup. The throttle body connectors have a history of failing on these cars. Replace the throttle body and the wire connectors that go to it, and you're back in business. Not terribly difficult and you can get the parts from any dealer. Saturn actually has a bulletin out on this problem but they won't cover it unless you're under warranty - no recall for this.

Posted on Mar 05, 2009

rteemon

rteemon

  • 578 Answers

SOURCE: Service Engine light on Green line 2007 Saturn Vue

take the ground line of the battery and press the brake for a few minutes and if the life is still on have the vehicle scann and clear code and have the emission components for the vehicle check

Posted on Sep 12, 2009

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Service engine soon light, service light, reduce power etc.


It is most likely the Throttle Position Sensor has gone bad. But if the check engine light is on, the only way to tell exact problem, is to have a scanner placed on the vehicle to have the codes read.

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1 Answer

Service engine soon light on 2003 Saturn Vue


Here is the definition of the code in GM manual:
P0128 - Coolant Thermostat Below Thermostat Regulating Temperature, this indicates the engine is running cold, u need a thermostat

Feb 12, 2009 | 2003 Saturn VUE

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