Q: Vehicle will sometimes turn over, but not start

asked by on July 26, 2016

Sometimes my vehicle will turn over, but it won’t start. The crank sensor was replaced and a local import repair shop reported that they think it to be the main computer because the fuel pump is getting too much. Randomly the vehicle will start over and over, but other times it only turns and won’t start. Can you tell me what could be causing this?

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I use the windshield wiper mist feature in a 2012 Chevrolet Equinox?
The windshield wiper mist feature is perfect for when there’s a one-time occurrence of moisture on your windshield. To use the mist feature, locate the windshield wiper lever that protrudes from the right side of your steering column. Pull the...
Trouble with transmission hesitating.
Salvage cars are a gamble because you usually don't know what happened, that being said I would be willing to bet its only a misfire, is the check engine light on? These codes could be helpful, the fact that the...
If I am replacing the engine (D17) for another (D17a2), do I need a computer to match the new engine?
Hello. Swapping form a non-VTEC to a VTEC engine will require a different computer and wiring harness, as the two engines come equipped with similar, but different engine management systems. These parts are usually not difficult to source as these...
My truck struggles to start and stay running
This sounds like a fuel pump that is weak to start the vehicle and then stops pumping after ten minutes when it heats up. Have the fuel pressure checked to see if it is holding pressure and keeps pressure when...
Why would my radio and speedometer stop working on my 2004 Chevrolet Malibu
Hello. If both of these issues started occurring at the same time it is because there is an issue with voltage in the system. Most of the time on this vehicle it is caused by either a low battery, a...
Speedometer and fuel gauge faulty 1999 Toyota Corolla
Hi there - first thing to check is fuses for these gauges (https://www.yourmechanic.com/article/4-essential-things-to-know-about-your-car-s-fuel-gauge_2). Did they "fail" at the same time? If so, a blown fuse is likely. If not the sensors for each (both of which are electronic) are suspect....
Can a steering wheel lock up because there is a problem with the battery or alternator
Hello Sharon, thanks for writing in. The power steering can and absolutely will go out if the alternator or battery fails while driving. Lets break it down. The alternator is powered off of the engine, and it then supplies the...
VRC, Check Engine and TRC Off lights on and car won't go above 3000RPM NZ new import 2005 Toyota Wish. Any ideas?
The TRC and VSC lights relate to the traction control system and indicate when something is malfunctioning in the traction control system. The traction control system (https://www.yourmechanic.com/services/traction-control-light-is-on-inspection) monitors the steering and stability of the vehicle and engages when loss of...
2012 Chevy Equinox brakes pedal goes to floor then works tightly
The master cylinder not holding or getting pressure the first time is a bad residual valve built into the master cylinder. You will need to replace the master cylinder and bleed the system air out.

Related articles

How to Buy a Good Quality Oxygen Sensor
Oxygen Oxygen sensors help your vehicle control both the fuel and ignition systems, making it a critical component to ensure your car is running and starting smoothly. Boost your ride’s fuel performance and improve emissions output with a properly-functioning oxygen...
How Long Does a Cylinder Head Temperature Sensor Last?
The The engine’s performance is largely based on temperature measurements performed by the engine control module (ECM), also known as the vehicle’s computer. As the temperature of the engine increases, the resistance decreases which means the voltage drops. The computer...
How to Replace a Fuel Pump Relay
The fuel pump has a relay that fails when there is no audible humming sound as the ignition is turned and when the car cranks after longer than usual.