C0640 Saturn Auto Trouble Code
Parts or components should not be replaced with reference to only a C0640 Saturn DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
When you fill your car with gas, the vapors in the tank get forced into a canister filled with activated charcoal. Also, on a hot day as the gas heats up and vaporizes, those same vapors push into the canister where they're stored. But the charcoal can only hold so much vapor. At some point it has to be emptied. The emptying process is called canister purge.
C0640 Saturn Possible Solution:
Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.
C0640 Saturn Description For All Models :
- Saturn Astra
- Saturn Aura
- Saturn Curve
- Saturn Ion
- Saturn L
- Saturn Ls
- Saturn Lw
- Saturn Outlook
- Saturn Relay
- Saturn Sc
- Saturn Sedan
- Saturn Sky
- Saturn Sl
- Saturn Sl1
- Saturn Sports
- Saturn Vue
|
C0640 Saturn Trouble Repair :
If your vehicle failed a C0640 Saturn test and the C0640 Saturn Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature. |
Code Search
Please fill the search bar to find Auto Trouble Code meaning.