Skip the auto shop - Our mechanics make house calls

Q: My car stutter starts, but only after driving it for a few minutes.

asked by on

MY car was siting in my garage for 8 years without being started. When i decide 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. One week later the car started stutter starting. A check was done on the fuel pump and it was at 50psi instead of 60psi. I hesitate to replace the fuel pump because the car starts up fine in the morning but stutter start after driving it a while. Could it be something else causing the stutter starting that is having an effect on the fuel pump pressure?

Hey there. 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. If you would like to have an expert pinpoint the issue, a certified professional from YourMechanic can come to your car’s location to inspect the hard start problem and confirm which repairs are needed.

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: Key gets stuck in the ignition and is hard to get out

Provided that you can turn your key to the off position where you would normally pull it out, it appears that the tumblers in your key cylinder are sticking or binding, preventing the key from being extracted. A quick simple...

Q: I have a manual transmission and I can't seem to use my 1st with reverse, and 2nd gear. I can't even put it in its position

This may suggest the transmission synchros may be wearing out. Your transmission has small gear synchronizer rings that help to move the transmission in and out of the various gears. When these begin to wear out, you may notice it...

Q: Only runs if I do a small burst of starting fluid or splash about 2 table spoons of fuel down the air filter tube.

Hi there. The issue is either the fuel injectors are not firing or the fuel pump is not delivering fuel to the fuel rail. Check to see if the fuel pump is working by putting a fuel pressure gauge on...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
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...