Skip the auto shop - Our mechanics make house calls

Q: car won't start and no fuel pressure at rail but great at the filter

asked by on

I have no fuel preserver at the rail but got great fuel pressure at the fuel filter . This all started while I was driving and when I went to take off from the stop light the car just shut off and won't start up it cranks but won't fire up . Looking to find out what could stop the pressure at the rail when I have great pressure at the filter and what I can do to fix the problem

My car has 333000 miles.
My car has an automatic transmission.

If the pressure drop exists "through" the fuel filter, then the fuel filter should be replaced. If the pressure at the exit side of the fuel filter is normal and yet the pressure on the fuel rail is essentially zero, it’s possible the fuel pressure regulator has failed wide open, essentially preventing sufficient pressure from building. You just want to be sure that in diagnosing pressure on the fuel rail the schrader valve connection, if equipped and if you are testing through that valve, is actually opening properly to get an accurate fuel pressure reading. If you want the issue diagnosed, and the regulator replaced, if required, the service to request from YourMechanic is fuel pressure regulator diagnostic/replacement.

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
  1. Home
  2. Questions
  3. car won't start and no fuel pressure at rail but great at the filter

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: Jeep hesitating and then taking off

From the information provided on your Jeep Liberty, it leads me to believe that the problem may actually lie with the transmission and not with the fuel filter. After shifting into gear, if there is a delay in the engagement...

Q: Car makes clanking noise under oil pan

Having a spun bearing is a serious engine problem typically due to oil starvation. Oil starvation can happen in a few ways, the most common is when oil is low and dirty There are cases I have seen the oil...

Q: How to reset 2008 dodge caliber electonic throttle control system

Since you ran your car out of fuel it may have burned the fuel pump out. You should have the fuel pressure tested to see if the pump in the fuel tank failed? When you run your fuel too low...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.