Skip the auto shop - Our mechanics make house calls

Q: Car losing power after warming up.

asked by on

When I first start my Bronco it runs okay. Once it warms up though, it loses power and starts to sputter. If I turn the car off and let it sit, and then start it up again, it runs okay for a while.

Hello, from your description on how it loses power then shuts off. I believe that you have fuel pump that is failing. A fuel pump is an electric pump, mounted inside the fuel tank, and as the pump runs it starts to get weak and won’t be able to keep the fuel pressure required for the engine to run. You might want to get the aid of mechanic who can connect a fuel pressure gage and check the fuel pressure for you for a proper diagnosis.

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: Starter keeps on turning even after my truck starts.

Hello. Thank you for your question. YourMechanic will gladly assist you in restoring your starting system to factory OEM condition and function. For safety reasons (principally your and your family's safety in operating the vehicle), we cannot repair "redesigns" such...

Q: Engine shakes and won't stay running

Without knowing the type of fluid leak I will speculate it is the water pump is leaking and binding up. You may need to get the water pump and timing belt replaced along with the broken motor mounts.

Q: I'm thinking of buying a 2002 Mercedes ML500 w/ approx 208k miles. What parts do I possibly need to replace or check?

Hello....used car repair, maintenance, and restoration costs are highly dependent on the actual, as found, condition of the vehicle. To get a reasonably precise estimate, and also to protect yourself in the transaction, I recommend you request a pre-purchase vehicle...

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...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...