Skip the auto shop - Our mechanics make house calls

Q: Car turns over, but will not start. The accelerator pedal produces NO change in engine performance.

asked by on

This is my backup car. As such, it sat for 3yrs. This summer, put new battery in dropped sea foam in oil & gas, & a bottle of iso-heat when I filled up the 1st time. I've driven it regularly (at least every few days) since mid-Sept. w/o so much as a pause--this little Mazda is rough--she's NOTHING if not reliable. proto was then parked for 4days, i try to start it, & it was ROUGH (already kinda rugged cuz the exhaust just hangs from the manifold back to the muffler) so i let it warm for a few (probably TOO few, as it was only 12°F) I got ~1/4mile & noticed it was sputtering bad & not responding when i stepped on the gas. As i pulled back into driveway, she rumbled until she sputtered herself out. Let her sit overnight & now won't start!! Turns over, but sounds like it will, but won't STAY started. Gauge shows 1/2 tank so pretty sure not fuel pump, sprayed starter fluid in injectors & cranked, but no change...

TRIVIAL INFO: actual tacometer reads 398,000 orig. Engine, but new head

Hi there. Check the ignition system and see if the spark plugs have any spark. If the spark plugs have no spark, then check for power to the coil. If the there is no power to the coil, then check the ignition fuses to see if they are blown. If all fuses are good, then check the ignition switch to the fuse box and make sure that there is power. If there is no power, then the ignition switch needs replaced. If you need further assistance with your engine not starting, then seek out a professional, such as one from Your Mechanic, to help you.

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
  1. Home
  2. Questions
  3. Car turns over, but will not start. The accelerator pedal produces NO change in engine performance.

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: Car starts but will not run

You should not replace any parts, at all, unless the part is diagnosed as not functioning. ECU's rarely fail (fully 50% of warranty returns on ECU's have absolutely nothing wrong with them). If there is a spark at the plug...

Q: Car won't start after driving through water

This is probably not something that anybody will be able to solve quickly. Fixing a car that has been in the water can be very challenging because of the endless list of things that could be wrong. If you were...

Q: How Often Should my Ignition System Be Inspected?

Periodic ignition system inspections should follow the prescribed maintenance intervals as recommended by the vehicle manufacturer. Maintenance schedules are published in the owner’s manual of every vehicle. Routine ignition system inspections aren't as frequent as they used to be. With...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...