Skip the auto shop - Our mechanics make house calls

Q: 2005 Mazda6 hard to start

asked by on

My car starts, but only after a few attempts. When the engine first starts, it vibrates before settling down. Only then can it move forward. Once I do get it started, it won't go over 40 MPH. If I let the car sit for longer than four hours, it does the same thing all over. My Check Engine light is on as well.

Hi there. Since the Check Engine Light is on then I would typically need to scan the computer for codes to see what the computer is seeing as a fault. This is the best way to start the diagnostic on this problem. From what you are explaining though, it sounds like there may be an issue with the crank position sensor, or it may be a fuel pressure issue. It can also be caused by a failing catalytic converter, but this is not as common. Knowing the codes in the computer would definitely help as it gives you a place to start. I recommend having a mechanic inspect your Check Engine Light and determine what is causing the car’s starting issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Low RPM when on gear causes Vibration when at stopped.

Hi There, It sounds like you may have a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low...

Q: What does the Service Engine Soon Light mean on the dash?

The Service Engine Soon Light is tied into your car’s Emissions system, which includes a broad range of sensors and components in the engine, your Fuel system, and the Emissions system. When you first crank the car, the Service...

Q: Can not remove rear tire

What is causing you to be unable to remove the tire? If all of the lug nuts have been removed and the tire will not come off, there may be a lip of rust keeping the wheel from moving. In...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.