Skip the auto shop - Our mechanics make house calls

Q: Grinding noise and backfiring during startup

asked by on

The truck intermittently won't start. Some days it wouldn't start at all. Other times, it has difficulty starting. There are no problems when it's running though. When it start cranking or turning over, it begins making this awful grinding noise. It sounds like two pieces of metal hitting. Also, the engine would backfire a bit. I had the starter and flywheel replaced but the issue remained. What should I do?

A: The starter on this vehicle requires a shim...

The starter on this vehicle requires a shim, so its possible that got left out when the starter was replaced. This could cause starter engagement problems and the metal on metal noise you’re hearing. Backfiring, on the other hand, is caused by an engine performance problem such as incorrect engine timing or a rich air/fuel ratio. I suggest you have a professional, such as one from YourMechanic, diagnose your starting issue and repair your vehicle firsthand.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: My truck shakes when I accelerate

This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed...

Q: Engine dies and went to Neutral

From the information you have given and the knowledge I have I believe the starter or flywheel will be the problem. A starter at times will go bad and produce the exact noises you describe from it incorrectly engaging the...

Q: What Does a Starter Motor Do?

The starter motor is a 12 volt, permanent magnet DC motor that engages a small drive gear on the starter with a larger ring gear that is attached to the flexplate, or flywheel. The flexplate is bolted to the rear...

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...
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...