Q: My car stutters after driving it for a few minutes - 2002 Toyota

asked by on November 02, 2016

My car have been sitting in the garage for 8 years. When i decided to start driving the car i had to replace the fuel pump because the car wouldn't start. After replacing the fuel pump the car started up. One week later the car started stutter starting. A diagnostic test was done on my fuel pump it was at 50psi instead of 60psi where it should be. I hesitate to replace the fuel pump because the car start up fine in the morning but stutter start after i drive it a while. Do you think something else is causing the fuel pump to lose pressure?

My car has 88000 miles.
My car has an automatic transmission.

This may also be caused by what is called the fuel pressure regulator. This is a unit that helps to maintain the fuel pressure at the proper level. When this is not working properly, the fuel pump may be pumping properly, but the fuel may not arrive at the fuel injectors at the proper psi. When this happens, this can cause a lean fuel condition which may cause the car to hesitate, misfire or stall. I would recommend having an expert from YourMechanic come to your location to diagnose your fuel pressure.

Was this answer helpful?
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

my brake lights want turn off

A common cause is the brake light switch contacts are either stuck closed or the brake light switch is not properly adjusted. A short circuit in the brake light wiring is also a possibility. If you desire a resolution of...

lights on dashboard come on while

Hello, thank you for writing in. The warning lights that are illuminating will stand for whatever system is failing or having issues. If all of the warning lights are coming on, then it is very unlikely all of those systems...

Car vibrating and losing power.

Your symptoms could be caused by many things, from a clogged catalytic converter to failed mass air flow sensor. The first step is to retrieve the diagnostic trouble code (DTC). This provides a starting point for the diagnostic procedure. A...

Related articles

A Buyer’s Guide to the 2012 Toyota RAV4
While While the Honda CR-V might have been the pioneer of the compact SUV market, there’s no question that the 2012 Toyota RAV4 is king of the class. Not only does the RAV4 come with your choice of either a...
How to Start a Prius
The The Toyota Prius was a game changer when it was first introduced back in 2000. As one of the first commercially successful hybrid vehicles, it eventually helped launch an entire hybrid industry. The hybrid engine was not the only...
The Top 5 Selling Cars in Florida in 2012
Florida Florida offers great weather year round, and the fact that snow and ice never factor into the equation means drivers don’t have to focus on the overall vehicle handling as they do in other states. The best selling cars...