Skip the auto shop - Our mechanics make house calls

Q: Fuel promblem

asked by on

Change fuel pump after that car started running bad check engine light came on it runs and cut off changed four injectors because it was dirty now it has a misfire what is my promblem
My car has an automatic transmission.

You may have excessive dirt inside the tank that has clogged the fuel filter to the point that the dirt has gotten into the injectors, causing the misfire.

  • Remove the fuel filter and blow through it to see if it is clogged.
  • If it is, then blow backwards through it to see what is clogged in the filter.
  • Then take a fuel sample from fuel tank to see if it is contaminated with water or debris.
  • Clean out any water or debris in the tank and replace the filter.
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: Opinion on GM's 4.3-liter Vortec engines

With the overall vehicle, it is a coincidence for your father. A lot of times, the vehicles fall apart. The engine themselves are actually decent engines. They are strong engines, those 4.3-liters. But the Vortec fuel injection system on them...

Q: Oil capacity

Hi There, I would not recommend filling the engine with more than the manufacturer's recommended oil specifications, which is 4.5 quarts for your particular make and model. Your engine's optimal maximum oil level is determined by filling up to a...

Q: Sporadic misfiring, check engine light on sometimes

Hello there. If there is no cylinder specific misfire codes, it may be a random misfire situation. Without the exact code, I cannot give a precise answer for your specific situation but can offer a possibilities. The most common causes...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...