Question about 2007 Kia Optima

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Have a 2007 kia optima lx and the engine running hot light came on coolant is a little low and showing on the gauge barely get any black dotes. what could be the issue?

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Could be the head gasket went bad and that is why the water is low,

Posted on Dec 10, 2016

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I have an 05 Kia sorento. It is showing signs of over heating, I checked fluids changed coolant and there are no leaks. Thermostat only goes to the middle.


Generally and engine heats up a little more when you shut off engine and it may be boiling out into over flow tanks as vapor (no leak) when it makes that sound. A overheated engine feels very hot when you open the hood, gauge works but maybe not accurately.

Jun 03, 2016 | 2005 Kia Sorento

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What could be wrong with my 2006 Honda Odyssey. It has no heat, but the engine is running hot. I thought maybe coolant level was low but overflow tank was right at max


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Dec 28, 2015 | 2006 Honda Odyssey

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Temp gauge works errtic on a 2001 optima but does not overheat


First check your coolant level. If it is low, look for leaks. Also don't rule out the reservoir isn't bad. Also if the hose is pinched to reservoir, this will cause low coolant in the engine.

Dec 27, 2014 | 2001 Kia Optima

1 Answer

2005 kia optima lx v6 engine started knocking on right side of motor heater wouldnt work earlier that morning


check for low coolant, look for coolant bubbling up in over flow bottle
if there is call a mechcanic

Mar 27, 2014 | 2005 Kia Optima

1 Answer

2008 kia optima LX Check Engine Light code P2159


My 2009 Kia rondo showed code P2159 Vehicle speed sensor B pulled right front and yep broken wire on abs sensor, replaced and code gone.

Nov 14, 2012 | 2008 Kia Optima

1 Answer

Jacking


engine running too hot.check coolant level, should be 50/50 antifreeze and water.replace thermostat and radiator pressure cap.check antifreeze level in the radiator,coolant level should be just below radiator cap, add coolant to overflow jug,should alway be at the full cold mark.empty coolant overflow jug will allow air be drawed in the coolant system causing overheating.if overheating happens when coming to a long stop.could have faulty engine coolant temperature sensor or bad coolant fan fuse or relay.

Sep 02, 2012 | 2002 Kia Optima

2 Answers

My antifreeze resevior is completely filled but my temp guage raises above the mid point then drops below the mid point then raises then drops. I started the car and noticed that only one of the two fans,...


The thermostat may be wearing out. A thermostat controls the engine temperature to keep it at a consistent temperature, The other fan will probably turn on if you turn on your Air Conditioner.

Mar 04, 2010 | 2002 Kia Optima

1 Answer

My 2001 Kia Optima is overheating when the a/c is running. If I turn the a/c off the gauge goes back down. Both fans run when the a/c is on, but neither run when it's off.


The possible causes are NUMEROUS. Best you have it diagnosed by a certified technician. Possible causes: 1. water pump, 2. thermostat, 3. coolant level low, 4. clogged radiator, 5. engine combustion chamber leak into the water jacket, 6. Loose belt, 7.combination of all the above.

Jun 08, 2009 | 2001 Kia Optima

4 Answers

2001 Kia Optima over heating


I figured this out and fixed it on my 2001 Optima. Mine was an electrical problem, not an overheating problem. The problem shows up when there is a heavier than normal load on the electrical system. For most of us, this is when the air conditioner is running full-blast on a hot summer day. However, it was also occuring when I ran the heater full blast. The heater running full-blast should have lowered the temperature, not raise it. So I tested the coolant temp while the gauge was showing it overheating. The coolant temp was not increasing, but the gauge showed that it was. It is caused by a bad ground connection. Another test you can do to see if your problem is the same as mine is this. As soon as the engine is showing overheating, pull over, park the car and turn off the engine. Immediately start the engine again and see what the temp gauge shows. If it still shows hot, you'll know you've really got overheating coolant. If it goes back to normal range, you'll know it's just a bad ground connection. Turning off the engine eliminates the resistance in the electrical system that has beeen building up and causing an erroneous high temp reading.

To fix: Either find and clean ground connections throughout the vehicle until it fixes it, or do what I did. A mechanic at the Kia dealer showed me this. I ran a new wire from an empty bolt-hole on the top of the engine to a bolt into the frame behind the engine. I only added a 6 inch wire and a new bolt into the top of the engine. The bolt into the frame was already there, so I just removed it, put the wire under it, and replaced the bolt. It created a redundant ground that prevented the build-up of resistance that caused the erroneous temp reading. It was a 5 minute fix and it has never done it again. Kia knows about this problem and they put out a post to their shops on how to fix it.

Jul 18, 2008 | 2001 Kia Optima

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