Q: Engine runs like it is flooded hard to start

asked by on

About two weeks ago I replaced the fuel pump on my truck every since it has not run right it is sluggish pops snaps but it never completly stops running while going down the road whenit starts running bad I can turn key of then back on and it wll run fine untill I get to the next stop light

My car has 280132 miles.
My car has a manual transmission.

Hi there. Most of the time this is caused by a bad fuel pressure regulator. Typically, an old fuel pressure regulator will be blown out from the new fuel pump due to the higher pressure. This is going to be located inside of the intake manifold. When the regulator fails it allows too much fuel to be dumped into the engine which causes it to flood out and run like this. It can also be caused by other things, but this is most common. If you want to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to replace your fuel pressure regulator for you if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Engine runs like it is flooded hard to start

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: howling noise?

Hi there. Thanks for writing in today about the problem with your 96 GMC C1500. The howling noise when driving is typically an indication of many of the items you mentioned: wheel bearings being worn out, tires being cupped, or...

Q: Q: Fuel pressure

Hey there, thanks for writing in about your 2010 GMC Yukon. With the ignition on and the engine off, the fuel pressure should be between 50 and 60 PSI. Possible causes for a sluggish or hesitating engine include a clogged...

Q: It takes two or three turns on the ignition to start the vehicle

Claimed by Blake Griffin

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...