Question about 2007 Saturn ION-2 Quad Coupe
Since the check engine light can come on for well over 100 different faults I would say the dealer is guessing, ask if he replaces the pump on this guess will he fix the real cause if the car still has a problem. I would suggest u go to Kragen or Autozone parts and have them run a free trouble code test for the cause of the check engine light. With that code in hand post it back here for us to look at and try to diagnose.
Posted on Mar 10, 2009
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Posted on Jan 02, 2017
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The information below was complied by me, it explains what causes the check engine light to come on and the process of finding the cause.
When the Check Engine light (or Service Engine Soon) is turned on, the systems computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible system faults (the gas cap is just one of them) that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen/Oriley and Autozone parts stores (USA only) do this testing for free.
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