Question about 2008 Kia Optima

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Computer says something is wrong with my first cylinder, sounds like a rod or piston issue. What should I do?

It is a 4 cyl. And has over 90,000 miles on it. Got an oil change and they recommended I get a new battery. I got the new battery and two days later the engine shut off and started to make loud clicking noise after getting it to turn back on.

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  • Erin Jan 16, 2013

    I am trying to avoid a new engine is that possible or just worth to do so.

  • Erin Jan 16, 2013

    I had a person look at it already and said he thinks it is a rod in the first cylinder, he checked the pressure and it was good and spark plugs are good

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  • Expert
  • 109 Answers

Take your vehicle to a trusted mechanic ASAP before your throw a rod

Posted on Jan 16, 2013

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Posted on Jan 02, 2017

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SOURCE: 2004 Kia Sedona wont start but i can hear starter.

if the starter is revving very slowly it is the battery, charge battery. if not, It can be three things happing. 1 no spark 2 no fuel 3 no crank signal or the car computer is bad- you will need to unplug one of the spark wires and remove the spark plug and put the spark plug in the spark plug wire boot, and touch the spark plug on any metal on the car and have some start the car. donot touch the spark plug itself and see if there is a spark. if spark is bright, then it is not spark plug and wires but if no or spark is not bright, check the spark plug wires by applying a little bit of water on the spark plug wire and take a 12v test light, connect the clap to ground and and have some one to crank the vehicle, touch allover the spark plug wires with the tip of the test light, if you see spark, replace the wires and change the plugs.. they are not good. if spark is present, check for fuel by removing any one of the spark plugs and see if it is wet. if wet fuel pump is ok but if not go look for the fuel pump fuse and relay. is fuse blown, replace, check the relay resistor with a volt meter. it should be around 40 to 80 ohm. if everything is good from this point check the fuel pump itself by disconnecting the connector to the pump and apply 12v and ground using jumper wires or some wires to the fuel pump if you donot hear the pump,replace pump. if you, the crank signal or computer may be the problem

Posted on Jan 02, 2009

  • 99 Answers

SOURCE: 2004 Kia Rio Won't Start Clicking Noise Battery is GOOD

Sounds like the starter.

Posted on Jan 22, 2009

  • 383 Answers

SOURCE: Car droning noise

While you are driving, get up to roughly 40 MPH on a road with little or no traffic. Once at this speed, whip the steering wheel left and right as if you were making rapid lane changes. If you notice a change in the pitch or intensity of the sound, it is quite likely that you have a pending wheel bearing failure. The reason that the change will be noticed is because there is a rapid change in load placed on the bearings during lateral moves. Outside of the, the tires alone, can be quite noisy. I drive an old 1981 Mercedes 300TD wagon. I never realized how much road noise was coming from my tires until I replaced them with new ones!

Posted on Apr 06, 2009

  • 1 Answer

SOURCE: 2004 Kia Rio Won't Start Clicking Noise Battery is GOOD

My 2004 Kia Rio just started losing compression and died on me. I tried starting it and it only clicks. I checked the battery cables and they are not corroded and very tight. Could it be the battery or the alternator not charging the battery? there is no water in the oil and it's not the water pump.

Posted on Jul 08, 2009

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