Kia Optima Overheating While Idle: Causes + Fix

There are a few reasons why your Kia Optima would be overheating when idling.  The most common ones include a bad thermostat, water pump, electric fans, and low coolant level.  This guide is intended to help you find the cause of this overheating in the most efficient way possible.  So, let’s start with what’s easy … Read more

Kia Optima:  P0068 MAP/MAF Throttle Position Correlation

P0068 in the Kia Optima is a generic OBD II code.  In layman’s terms, it means that the MAP (manifold absolute pressure) and/or MAF (mass airflow sensor) are providing the Optima’s computer contradicting data compared to what it should be in relation to the throttle position sensor. The throttle position sensor tells the computer how … Read more

Kia Optima: Engine Smoking Causes + Diagnosis

A smoking engine is a serious thing.  If your Kia Optima’s engine has smoke coming from it, it needs to be addressed right away.  It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Optima’s engine would smoke include overheating, burning oil, or … Read more

Kia Optima Hesitating to Start (5 Most Common Reasons)

While it may not leave you stranded, a vehicle that hesitates to start can be very concerning. There are a few reasons why your Kia Optima may not be starting, such as a bad starter, a bad battery, bad alternator, and more.   Kia Optima Hesitates to Start: Causes Here are some of the most … Read more

Kia Optima:  Bad Sway Bar Links (Common Symptoms)

Sway bar links are responsible for connecting your Kia Optima’s sway bar to the chassis.  The job of a sway bar is to eliminate body roll by helping the tires keep better contact with the road, which improves the handling characteristics of your Optima.  If you have a bad sway bar link, your vehicle will … Read more

Kia Optima Shuts Down While Driving: Common Causes

The Kia Optima is a popular midsize sedan known for its sleek design, comfortable ride, and excellent safety features. However, like any vehicle, it can experience issues that require attention. One of the most concerning issues that Kia Optima owners may encounter is the car shutting down while driving. This can be a frightening experience, … Read more

Kia Optima:  Brake Lights Not Working Diagnosis

Brake lights are one of the most critical safety features that your Kia Optima has.  They let other drivers know when you are slowing down, and that they need to slow down too.  If your brake lights aren’t working, you’re way more likely to get rear ended than normal.  The good news is that troubleshooting … Read more

Kia Optima: What’s Causing That Rotten Egg Smell?

One of the most undervalued diagnostic tools is the human nose.  There’s a lot our nose can tell us about a vehicle with a few quick sniffs.  If you happen to smell a rotten egg smell coming from your Kia Optima, it is certainly a cause for concern.  It is most commonly associated with a … Read more

Kia Optima Dies After Starting Diagnosis

It can be very disconcerting if your Kia Optima is starting and then dies.  It is most likely caused by some type of issue with the electrical or fuel system.  But, there can be other causes as well. Your Optima’s engine needs 3 things constantly and in the proper proportion to keep running. Air Fuel … Read more

Kia Optima: Brake Lights Stuck On → Diagnosis

It is both frustrating and unsafe to drive your Kia Optima if the brake lights are stuck on.  The most common reason that they stay on is a brake light switch that has failed.   How Brake Lights Work Brake lights work by having an electric current sent to the brake pedal switch at all … Read more