Q: Car cranks but will not start.

asked by on December 05, 2016

check engine light came on the other day then the car jerked and heard a small pop. now car cranks but will not start. i replaced the battery and the crankshaft position sensor.

My car has 105332 miles.
My car has an automatic transmission.

Car is not starting Inspection $79.99 - $89.99 Get a Quote

This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the ignition coils, crankshaft position sensor (which you have replaced), spark plugs, spark plug wires or ignition module are faulty, this may cause the motor to not produce the spark needed to ignite the fuel in the motor.

If there is a fuel delivery problem, this may be related to low fuel pressure, faulty or dirty fuel injectors, a faulty or dirty idle air control valve (this relays information about air intake to the computer which makes fuel adjustments), or potentially a faulty fuel pressure regulator or fuel pump. Fuel delivery problems will typically not allow the proper amount of fuel to be delivered to the cylinders which results in a lean fuel condition which can cause backfiring or simply cause the motor not to start as a result of fuel starvation. I would recommend having an expert from YourMechanic come to your location to diagnose your no start problem.

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

What others are asking

my dodge journey 2009 ran out of fuel. I have put diesel back in but it still won't start? Please help, is there anything else I s

It is quite possible the fuel pump is damaged. Fuel, whether gasoline or diesel, acts as a coolant and lubricant for the fuel pump. When the fuel pump is 'run dry" due to running out of fuel, the pump can...

My valve gasket was done wrong so it leaked into spark plug wells. Then my battery died and the coils are now bad. What happened?

Hi A.S. Thanks for contacting us today. Typically, when oil leaks into the spark plug holes, it will create an electrical short and cause the plugs and wires to fail. The solution to this issue is to resolve the oil...

pinging in engine

It is possible that your ignition system could be causing this issue. The combustion of fuel is a two part process: the introduction of fuel and the ignition of fuel. Everything you have done to resolve this issue has been...

My car is having trouble idling.

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

My car won't start. The odometer reads: NO BUS.

The error code "no bus" means the PCMS are not communicating with each other. Likely one of them has gone bad, or there is a bad connection. You can do further testing on them using a multimeter. This will require...

Hello, I own a 2007 Nissan Sentra 2.0s 4L the oil light comes on when I brake. I checked the oil and it seems to be full. Help!

Hi Aaron. Thanks for contacting us tonight. Anytime you hear a grinding noise while driving, that's an indication of a lack of lubrication. This could be coming from the wheel bearings, the differential or the engine. If you have an...

Door locks go on and off fast, whole dashboard goes off, transmission seems out of gear, RPMs go up, wont start at times, switch on

Hey there. It sounds like you may have a major electrical issue with your vehicle. This could be a short of some kind or a computer going bad. I would recommend enlisting the assistance of a qualified professional who is...

Car shuts down when gas is pushed

Situations like the one you are experiencing are tough to diagnose with limited information because of all the variables involved. Things like low fuel pressure, or a large vacuum leak could cause a concern similar to what you are describing....

Rattling from timing chain tensioner

Hello. Ford motors commonly have a problem with the timing chain making noise over time. Most of the time, the problem is that the timing chain guides are worn out. This could be causing the timing chain to hit metal...

Related articles

A Buyer’s Guide to the 2012 Dodge Grand Caravan
When When you were a kid, almost every family you knew had a Dodge Grand Caravan. However, thanks to the rise of SUVs, CUVs (crossover utility vehicles), and sport wagons, this model has lost a lot of ground over the...
The Best Used Cars to Buy If You Don’t Have Kids
Buying Buying a used car is rarely a simple process, but if you don’t have kids, you have many more options than those who have to account for additional passengers. There are plenty of choices out there, depending on your...
The Best Used Cars to Buy If You're an Undercover Cop
If If you're an undercover cop, when you choose a used vehicle, your main purpose is to look like anything but a cop. That means, of course, that an unmarked Crown Victoria is probably not the wisest choice. We’ve...