Skip the auto shop - Our mechanics make house calls

Q: Car cranks but won't start - 2001 Pontiac Firebird

asked by on

Pit a new alternator and new battery in. Now it's cranking and it does turn over but will not start. What could it be. It would not start with starting fluid either.

My car has 143000 miles.
My car has an automatic transmission.

Your engine needs spark, air, and fuel to start and run. Air is always present unless the intake is blocked off. The lack of fuel or spark will prevent it from starting. Since you are providing fuel by spraying starting fluid, the most likely cause is lack of spark. Possible causes are a bad crankshaft sensor, bad ignition module, or faulty PCM.

Have a certified technician, such as one from YourMechanic, determine why your vehicle will not start and suggest any necessary repairs.

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: Are my heads cracked or just gaskets on intake and manifold blown?

In order to know if the heads are damaged from the overheating or corrosion near the coolant passages you will need to have the intake and heads removed. The heads get corroded to the point the coolant passages do not...

Q: Intermittent "no start" or dies while running fine on highway - what's wrong? 2003 Buick Rendezvous

Hi there: Once the vehicle starts, the job of the battery is pretty much done; which means if you're having issues with the vehicle shutting off, it's most likely caused by ignition system components; such as a the distributor or...

Q: engine cranks in any gear

The function of the neutral-safety switch is to make sure the vehicle can only be started in Park or Neutral. This is similar in function to having to depress the clutch pedal to start a manual transmission-equiped vehicle. It prevents...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...