Skip the auto shop - Our mechanics make house calls

Q: Just replaced fuel pump now my car smells badly like gas?

asked by on

I recently had my fuel pump changed and now my car smells badly like gas. It only smells like gas when i am driving,not when im at a light or stop sign, Can you please help me?

My car has 338147 miles.
My car has a manual transmission.

A: Hello. You are smelling gas because there i...

Hello. You are smelling gas because there is a gas leak. Fuel leaks are the #1 cause of engine fires. The only option is to find the leak and repair it. Did you change the fuel filter when you changed the pump? You should always replace the filter at the same time. The new pump wants to flow freely and an old filter will cause excess pressure on the system. The fuel lines that were disconnected when you replaced the pump should be the first place to look. You may be able to physically see where the leak is coming from by observation if you can get a good look at the pump while it is running. You will likely need to raise the back end of the vehicle securely and have someone press the gas while the vehicle is in park. If you can replicate the scenario when you notice the smell, you are likely able to find the source of the leak. Again, you will need to find the leak and repair it. You will save your gas mileage and lessen your risk of a fire as well.

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: My truck is giving codes P0171 & P0174

Hi there. If the engine is running lean, then there could be a plugged fuel filter or a faulty fuel pump with loss of pressure. If the pressure is dropping after 20 to 25 minutes, then there could be a...

Q: Driveshafts going bad

If the axles are bad and vibrating then they may affect the parts that are connected to them. The axles may start to wear the bearings, shocks and bushings in the suspension. I recommend having the axles replaced and any...

Q: Car starts, dashboard lights flicker, air conditioning shuts off

Hello there, thank you for asking about your 1993 Isuzu Pickup. It sounds like a bad ground in the instrument panel circuit. Looking at the wiring diagram, I see the AC heater control panel and instrument cluster share the same...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control 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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.