Hyundai i40 Battery Light: Why It’s On and How to Fix

If your Hyundai i40’s battery light is on, it is trying to warn you that there is an issue with the charging system. The charging system itself is relatively simple.  The battery light comes on because the voltage level at the battery is too low. Quick Facts Common Causes Faulty Battery, Bad Alternator, Battery Cables, … Read more

Hyundai i40 Power Steering Fluid Leak: Causes and Solutions

One of the most common problems that can happen with a vehicle over time is it’ll begin leaking power steering fluid. Without the power steering system, your i40 would be very difficult to drive.  Most of the weight of the vehicle is absorbed by the power steering system, making it feel much lighter than it really … Read more

Hyundai i40 Burning Smell: Causes + How to Fix

A burning smell is one of the most troublesome problems you can experience in a vehicle.  If your Hyundai i40 has a burning smell, there are many potential causes.   Typically, the smell is caused by some type of fluid (oil, trans fluid, etc…) hitting the exhaust or other hot parts of the engine or … Read more

Hyundai i40:  Burning Oil Diagnosis

  The engine burning oil is one of the most common problems that a vehicle can encounter, particularly one with high mileage.  If your Hyundai i40 is burning oil it is typically caused by piston rings or valve guides.     How Much Oil Consumption is Normal? Most auto manufacturers are hesitant to tell you … Read more

Hyundai i40 P0463: Fuel Level Sensor Circuit → High Input

  P0463 is a moderately common OBDII trouble code that can occur in your Hyundai i40.  It indicates that the vehicles computer has detected an inaccurate fuel level reading.  It shouldn’t affect the drivability of your i40, but it can be inconvenient. Your i40 will get the P0463 code when the signal coming from the … Read more

Hyundai i40: Backfiring Causes

  One of the more jarring vehicle problems that you can experience is a backfire.  It sounds like a shotgun blast and can scare you if you’re not prepared for it.  If your Hyundai i40 is backfiring, common causes include improper engine timing, bad spark plugs, engine running rich, and plug wires (if so equipped). … Read more

Hyundai i40:  Oil in Coolant Diagnosis

If you’ve recently checked your Hyundai i40’s coolant, and it looks almost like it has butter in it, then you probably have oil in it.  Oil in your coolant is most often caused by a blown head gasket. It can also be caused by a cracked head or even a bad radiator (well sorta, you’d … Read more

Hyundai i40:  Overheating → Symptoms + Causes

One of the worst problems that can happen to your Hyundai i40 is overheating.  Common symptoms of overheating include smoke coming from under the hood, a pegged temperature gauge, and (eventually) a blown head gasket. If your i40 is overheating, stop driving it immediately to avoid damaging the engine. Ignoring an overheating engine can lead … Read more

Hyundai i40: Window Won’t Go Up Diagnosis

Your Hyundai i40’s windows protect you from the elements, and they protect the interior from damage.  If your window won’t go up, there are a few common issues that can cause this problem.  These include a blown fuse, bad window motor, wiring issues, and the switch.     Power Window Won’t Go Up Causes:  Hyundai i40 … Read more

Hyundai i40:  Brake Fluid Leak Causes & Diagnosis

  Your Hyundai i40’s brake system is the most important safety feature on the vehicle.  Without a reliable braking system, it is dangerous to keep driving your i40.  A brake fluid leak is a serious problem.  It is usually caused by a failure of a seal, brake line, master cylinder reservoir, and a few other … Read more