Popular questions

Question
What effects could bad or failing mega fuse cause and what would be the symptoms on a failing mega fuse?
MEGA fuses are bolt-down style fuses that are used to protect high current circuits. If a MEGA fuse blew, the car likely would not operate at all because these fuses protect critical, high current circuits, ones important to keeping the...
Question
My passenger headlight keeps going out, then tap it and comes back on?
Hello. This sounds like the bulb filament in the glass is intermittently loose or the plug connection to the back of the bulb is loose, corroded, broken, or intermittent. If the bulbs are many years old, they have probably lost...
Question
What does the Service Tire Monitor System message mean?
The Service Tire Monitor System message can appear on the driver information center (DIC). The DIC displays this alert when it detects an issue with the tire pressure monitor system (TPMS). When the TPMS issue is resolved, the alert will...
Question
Car won't start, no power, doesn't even crank engine.
Hello, thank you for writing in. When it comes to the vehicle not starting, and not having electrical power, always start by checking the battery. In your situation you can go remove the battery from the vehicle, and take it...
Question
Car starts bucking/jerking when letting off gas on the highway
This is very likely a throttle issue. There is an idle control module (or similar setup depending on your make and model) that is located on the throttle body which helps the gas regulation during these moments. Otherwise, without a...
Question
Screeching when I start the car cold. But the sound goes away.
When you have a squealing noise on start up, that goes away after a few minutes, is normally a belt issue. This is typically a sign that the belt is slipping enough that it makes the noise until everything gets...
Question
What does the “CHECK BRAKE SYSTEM” warning mean in the message center?
Quite a few different warning messages can be displayed in your car’s message center. If you see one that reads “CHECK BRAKE SYSTEM,” it means that the car’s computer has detected a problem with the Brake system and it needs...
Question
What does the oil life feature do?
Your car’s message center lets you access a lot of information about the various systems on your car and their condition or status, including the remaining oil life. Press the Reset button to cycle through your options until you see...
Question
How do I control the light brightness on the instrument panel?
Your car is equipped with several instrument panel lights designed to illuminate the gauges, dials and readouts so you can see them when driving in low-light conditions or at night. You can adjust the brightness of your instrument panel lights...
Question
What do I do if the coolant reservoir is completely empty?
The coolant reservoir on your Accord is connected to the radiator, and allows coolant to flow back and forth between the two as it heats and cools. If the coolant reservoir is completely empty, you can’t just refill it. You...
Question
My car pulls hard to the right during acceleration .
Hi there. Most of the time, when the car pulls to one side during acceleration, it is caused by either the suspension being out of alignment or what's referred to as a radial pull with the tire. Inside the tire...
Question
The Wrench Light is on
The Wrench symbol on the dashboard is a maintenance reminder. It will come on for a short time when you are approaching a scheduled maintenance, and it will light up more frequently and for a longer duration as you get...
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What does it mean if the message center says “oil change required”?
It’s vital that you keep your engine oil changed. If the oil is allowed to go beyond the end of its life, it loses its ability to lubricate (called viscosity), and it builds up debris and can cause damage to...
Question
Red lighting bolt on and car won't start but I have electrical power
The red lightning bolt indicates that there is a problem wit the electronic throttle control unit. This may be for a specific reason or may be due to a slight glitch. Try resetting the throttle control unit by doing the...
Question
Knocking sound from car while driving straight and turning.
There are several reasons that may be causing a strong knocking sound from the driver’s side front wheel and this sound is likely attributed to an issue with the brakes, steering, and suspension. Struts/Strut Mounts - The suspension strut...
Question
Car shakes when put into gear, fine when i give it gas, I replaced all mounts
Hi Joel. Thanks for contacting us tonight. Usually, when you have a vibration that occurs while in gear, it will be caused by either an engine misfire, something bent inside the driveline (like a damaged CV axle or input shaft)...
Question
P06DD code came on what does that mean
The Code refers to the dual stage oil pump that your car has. One reported fix has been to simply use the OEM (dealer supplied) oil filter as opposed to aftermarket filters. Among the other possible causes of the code...
Question
The engine revs up and lurches toward, while applying brakes
It is possible that your brake master cylinder is leaking brake fluid into your power brake booster. Your power brake booster is connected to engine vacuum so if a flammable liquid such as brake fluid were to enter the power...
Question
Check Engine and VSA light coming on
Hi there, VSA stands for Vehicle Stability Assist and is Honda's computer system that helps ensure the tires have traction to help keep you on the road. When both the check engine light and the VSA light are illuminated it...
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I am leaking all of my coolant near the rear passenger side tire. What could be the exact cause and how much to fix?
Hey there. This vehicle has a dual A/C and heat system. This means you has a complete A/C heat system mounted in the rear of the vehicle inside the passenger side. The rear system has A/C lines and heater hoses...
Question
My automatic car does not move when i let go the brake
Hi there. Sometimes a dragging emergency brake or warped front brake rotors can cause the symptoms you're describing. In worse case scenario, there may be internal damage inside the transmission or the torque converter of your Optima. I would recommend...
Question
What does it mean if the “Service power steering” warning is displayed in the message center?
Your car’s Power Steering system is an integral part of the vehicle. While the system can fail and you’ll still have the ability to steer, you’ll find that the wheel is much harder to turn. Obviously, it’s important to have...
Question
What does the all-wheel drive (AWD) lock light mean?
The all-wheel drive (AWD) lock light means that the all-wheel drive system is locked. In this condition, power is continuously sent to all four wheels. On the other hand, when the system is in auto all-wheel drive, the distribution...
Question
No acceleration or RPM increase while pressing gas pedal
It sounds like you may have an issue with your throttle position sensor. This sensor sends a reference voltage to your power-train control module, which uses that to determine ignition timing and fuel trims. If the power-train control module is...
Question
Running lights and tail lights stay on when the engine is off and the key removed
Hello. It sounds like your time delay in the control module is not working. It may also be a short in the switch but that is not as likely. The retained power relay may be failing or the control module...