Skip the auto shop - Our mechanics make house calls

Q: Car was driving fine but when I returned 30 minutes later it wouldn't start.

asked by on

I fitted a new starter motor over 2 months ago and I just bought a new battery 2 days ago. The engine is cranking, it just won't kick over. I then tried changing the spark plugs... still nothing! I have a feeling it's something electrical but I have no idea where to try next. Can anyone help me?

My car has 50000 miles.
My car has a manual transmission.

A: This may be related to many different possi...

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, 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.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: My car won't kick start.

Hi there. Check the battery for voltage of 12.6 to 12.4 volts. If the battery is low, charge up the battery and retest. Check the battery cable connections and make sure that they are tight. Check the cables on the...

Q: Wondering about tire swap 2011 Dodge Charger

Hello - yes, the snow tires in the size you mention will work just fine as a swap for your existing tires. Since they are a slightly lower "profile" tire (60 vs 65 aspect ratio), the speedometer will read slightly...

Q: Kia revving

Hello. If your Kia is idling at this rpm then the throttle plate may be sticking in one spot. It would be a good idea to start by cleaning out the throttle body. If that does not help then the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...