Skip the auto shop - Our mechanics make house calls

Q: My car not starting because there is no fuel pressure,

asked by on

i make a top overhaul on my car, everything is fine except the fuel pump have no pressure, i change the fuse and relay but still the fuel pump is not responding. what i'm gonna check?

My car has 196000 miles.
My car has an automatic transmission.

You’ll have to remove the back seat bottom and gain access to cover to the fuel pump. Test the fuel pump’s wiring to see if power is getting to the pump, specifically on the blue and black wire. If there is no power when cranking then gain access behind the glove box, to the opening relay, and check for power at the same color wire at the relay.

If you hear the relay click when cranking but there’s no power at the blue and black wire then replace the relay. If you have power to fuel pump but it does not come on, then replace the pump. Remember that it will only get power when you are cranking it or if it is running.

If you find out that these checks are more than what you bargained for, contact a certified technician, like one from YourMechanic, to diagnose your starting issue firsthand and help you fix it accordingly.

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: Hi, my 2006 camry is having low idle rev (400 rpm), engine shakes and constant hissing noise seems to come for fuel tank. What cou

Hi there. A rough idling engine can be caused by a number of issues, some of them are serious while others tend to be minor, but the symptoms remain pretty much the same. The car will feel rough and bouncy...

Q: heater core bypass hoses stuck

You should disconnect both hoses from the heater core and connect the two hoses together with a piece of pipe or cut off a piece of the heater core pipe to use to connect the two hoses together.

Q: My car doesn't start

Those old Volvo 240's can really roll up the miles. At 280 thousand it really could be anything, but the good news is that a car that will not start is usually the easiest kind of car to diagnose. Especially...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.