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High Speed Driving

Shaking at higher speeds is usually related to something that is rotating. Most of the time this will be the wheel and tire assembly. If you have tires that are worn unevenly, or if any of them have a manufacturer...

Hello, thank you for writing in. The first step is identifying where the noises are coming from. We need to determine if it related to the tires and suspension, if it is an engine problem, or if it is transmission...

Hi there. The EGR (exhaust gas reciculation) Valve needs to removed and cleaned out. If the engine continues to not drive faster than 40 mph, then I recommend replacing the EGR valve (https://www.yourmechanic.com/services/exhaust-gas-recirculation-egr-valve-replacement). If you need further assistance with your...

What you are describing does sound like a bad inner C/V joint or joints. Even if the C/V boot is not torn and all the grease thrown out like typically happens with outer C/V boots, inner C/V boots (https://www.yourmechanic.com/services/cv-boot-replacement) can...

Hi there. When I get these readings during an emissions test I usually start by checking the fuel pressure. A lean running condition from a weak fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement) will cause this. If the fuel pump is fine, then I...

Hello. From what you describe, it would appear that your vehicle is experiencing performance issues, perhaps misfires under heavy loads. If the engine is misfiring under heavy load it will most definitely be felt through the transmission and chassis. This...

Hello there. A few items may be causing the high speed shut off. The most common would be a fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement), low fuel pressure, or the rev limiter. This kind of issue can cause the vehicle...

Without being able to hear the sound and also with no TSB's (technical service bulletins) out from KIA for known issues that match your issue, it will be hard to make an accurate recommendation. Deep rumble sounds are often caused...

Just because the wheel has weights attached to it doesn't mean it is balanced correctly. My guess is that the wheels/tires are out of balance. However, the problem could also be worn steering/suspension parts or tires (https://www.yourmechanic.com/services/brakes-steering-and-suspension-inspection). A bent rim...

If the blower fan is operational, then you might have a clogged cabin air filter. The filter is located behind the glovebox and should be changed periodically, to ensure proper HVAC operation and air volume. If the blower is not...

Hey there. This may be a sign of a dirty or failing mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement). The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior...

Traction control helps with the stability of the vehicle in all conditions and works with the ABS system to ensure that the vehicle can stop fast and keep the vehicle in a safe condition on any roadway condition. I recommend...

Hi there. Check under the vehicle for any heat shields that could be moving during high wind turbulence. Also, look for any loose wiring or parts that can move when turbulence is making it move around at great speeds. If...

Hi there. Check the glow plug control relay to see if it is malfunctioning. This is a common part to fail on the diesel engines. The light is coming on for a the computer seeing that the engine is too...

Hello. The manufacturer limits the top speed of the vehicle as a safety. The only way to be able to increase this is to reprogram the computer. This would have to be done with a custom program. There are some...

Hi there. Vehicle vibration when driving above 55 mph is commonly attributed to tire / wheel balance. However, the other symptoms you're describing lead me to believe that you might have damage to wheel bearings (as you indicated you have...

Hello there. A few different items can cause the vehicle to have a high speed vibration. Most of the times these symptoms will start at 65mph or normal freeway speeds. The most common causes of this vibration includeL wheel(s) out...

In order for an engine to continue running, it must have three things. These things are compression, fuel, and ignition. If one of those three things goes away, the engine will no longer run. I would recommend checking your alternator...

Hello. I think it is possible that your rotors have warped (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-warped-rotors) again, and this is causing the shaking you are experiencing again. If you do a lot of driving and heavy braking, this could cause the rotors to warp...

This is a very common problem with Jeeps. There are several components on the front suspension that can cause this violent shaking concern. First would be the steering stabilizer: This looks like a shock absorber and does just that, except...