Question about 2011 Kia Rio
I put all of these details in the question. Should I get a new cylinder and just try to guess that the initial code was right?
More then likely the code was right if it was me I would change my plugs if it didn't fix it I would change my coil pack and that should solve the problem
Posted on Nov 07, 2014
Testimonial: "I changed the spark plugs and it is seemingly working like last time. When I scanned it this time the code said random misfire in cylinder 1 and 2 as well as a general random misfire. Hopefully the spark plugs did the trick."
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Posted on Jan 02, 2017
do a compression test. cylinder 3 could have a bad valve lifter or valve.kia sephia dont have push rods.it have a bucket type followers.a intake leak to that cylinder can also cause misfire problems.
Posted on Jun 06, 2009
In modern cars so much can go wrong to indicate an issue and a computer in the car can get confused as to what is really occurring. In most cars a misfire indicates either an incorrect firing order, shorted wires, bad plugs, or bad coil. Since you have replaced the wires and plugs we can rule those out. Im also assuming after the second engine code you pulled #2 plug and made sure it wasnt fouled with oil, was gapped correctly, and reinserted. To produce a sufficient spark for combustion the alternator sends power to a "Coil" which is in reality a storage point that then sends an amplified electrical current down the spark plug wire to the cylinder to fire the plug. If the car is truly misfiring you will notice a rough idle, fluctuating RPM's, and lack of acceleration. If you are experiencing any of these I would look at replacing the coil. If you arent experiencing any of these I would have the code cleared again and complete one drive cycle 100 miles and then have codes read again. If you still get a Misfire error some other causes known to occur with Rio's are fuel filter issues, gas caps, and fuel injector issues. Although rare, these can cause issues with the cars fuel delivery and emissions which can confuse the sensor in the ECU. I would try injector cleaner, replace the fuel filter, and gas cap . If funds are an issue then based on symptoms I would start with injector cleaner first $3, Filter $12, Gas cap $12, Coil $48 to $200+
Posted on Jun 06, 2010
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