Question about 2004 Pontiac Grand Prix
I left my gas cap on the trunk of my car and drove away, went back to see if I could find it but no dice. I went to canadian tire today to buy an aftermarket one, but my check gas cap message is still on. Is there a sensor in the stock caps that would cause this to happen? Should I return the aftermarket and purchase an OEM cap? or would this be another problem?
Posted by Anonymous on
Gas caps are either vented, or non vented. it sounds like you needed one type but bought the other...... Just a possibility
Posted on Sep 21, 2017
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Posted on Jan 02, 2017
Did u have engine codes scanned? If not, have it done, as it may indicate the problem. Let me know. (most parts stores will scan for codes free) .
Posted on Mar 21, 2009
The two are of course not related. Check the trunk seal for missing portion, tears, splits, etc. this has to be where the rain is coming in. You can check for leaks with a hose and climb in the trunk with a flashlight, having a trusty helper direct water to one area at a time to check for the leak. The gas cap light is probably on due to a defective evap. vent valve, which is located behind the left rear tire near fill tube for gas tank.
Posted on May 12, 2009
Check the interior seal inside the gas cap--could be damaged or collapsed. Replace cap if damaged. Try clearing fault code by disconnecting one battery terminal for little while, then reconnect. This clears the fault memory in the computer. The other way is to have the code read and cleared with a reader.
Posted on Jul 12, 2009
The gas cap fault is very common on this line of GM cars, and if you check your gas cap and have tightened till it is clicking, If you clear the code and it comes back, you need a new gas cap.
Most auto parts stores will read and clear your codes for free, so ask around.
Posted on Nov 19, 2009
SOURCE: own a 2008 pontiac torrent gxp
The system is set up by GM to have the cleared with a codes cleared by a OBIII hand held device which can be purchased at many auto parts stores. Auto Zone can clear it for you for free if you ask them to do so. If the code does come back you may want to purchase a factory fuel cap instead
Posted on Apr 04, 2010
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