Skip the auto shop - Our mechanics make house calls

Q: We changed our fuel pump

asked by on

About a month ago my fuel pump went out. Well we replaced the fuel pump, O2 sensors, the erg, mass air flow senor, fuel flitter and the spark plugs, we did this all at different times and our service engine light kept coming on. Reset the computer and my service engine light came back on today. We don't really know what to do. It's spitting out black smoke. And it's a bit stressful.
My car has an automatic transmission.

A: You need to have the fuel pressure regulato...

You need to have the fuel pressure regulator and injectors checked for leaking. The fuel pressure regulator is most likely leaking into the intake and causing the excessive fuel to get into the cylinders.

I’d suggest getting the vehicle looked at by a qualified technician who can diagnose your Check Engine Light and the smoke that is emitting. An accurate repair can be made once the issue has been assessed properly.

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: It has a new fuel pump regulator and filter but not getting gas to the throttle body

The best thing to do is measure the fuel pressure on the fuel rail (the fuel injectors are plugged into the fuel rail). There should be a port on the fuel rail for this purpose. There is normally pressure on...

Q: Transmission over temp

The shifting problem you are having may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the...

Q: I have a 2003 Chevy avalanche it runs great till I turn on the headlights then it goes into limp mode

Hi There, This suggests you may have a short, a faulty connection somewhere in the main harness from the lights or potentially an issue with the charging system or battery. If the battery is weak enough, this may draw enough...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...