Skip the auto shop - Our mechanics make house calls

Q: When i remove fuel pump regulator should there be fuel in it and if not how do i know if regulator is bad

asked by on

Car started making weird noises yesterday. Then car broke down today. It back fired out air intake when working on it so figured it was a air and fuel mixture problem. Took the regulator off but don't know how to tell if it is doing it's job or not

My car has 138000 miles.
My car has a manual transmission.

A: I'm assuming you're talking about t...

I'm assuming you're talking about the fuel pressure regulator. If the regulator is not leaking, the only test for it's functionality is a fuel pressure test. That takes some special equipment. If the car is backfiring out of the intake, That could be an ignition problem or maybe even a timing belt. I recommend contacting YourMechanic to have an expert diagnose the stalling problem so you don't waste time and money replacing parts that you don't need.

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・Save up to 30%

Get a quote

What others are asking

Q: Had new Mass airflow sensor put on an now I'm getting a code p0171 what could it be

This relates to a lean fuel condition which can be caused by many different things such as: Intake air leaks Faulty front heated oxygen sensor Ignition misfiring Faulty fuel injectors Exhaust gas leaks Incorrect fuel pressure Lack of fuel...

Q: What can I do to get my car running? It tries to crank and start but it struggles.

If the car is cranking strong with the new starter, and just won't fire up, it's time to re-check the basics. Check for a good spark at the plugs. If spark is good, try spraying a bit of starter fluid...

Q: Car stalling when starting

The first thing to check is to see if the check engine light is on and diagnose any service codes before continuing. If the problem occurs only when the vehicle is first started, then have the fuel pressure checked to...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...