2004 volkswagen jetta 3 new fuel pumps and still loses fuel pressure and cuts off sometimes turn the key for about 7 seconds and it starts back up

Marvin

• 85242 Answers
• Posted on Nov 04, 2008

SOURCE: FUEL PRESSURE DROPS WHEN PUMP STOPS.HARD TO START

The fuel pressure check valve in the electric fuel pump has failed, you will have to replace the fuel pump, it is in the gas tank, also replace the filter at the same time or the warranty on the new pump will be voided.

mike loshbough

• 1011 Answers
• Posted on Mar 22, 2009

SOURCE: 2000 gmc jimmy wont start fuel pump comes on and cuts off...

the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.

Dave C

• 1050 Answers
• Posted on May 11, 2009

SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.

SOURCE: 1998 Volkswagen Jetta TDI Vehicle will not start/Clutch?

You have an interlock switch on the top of the clutch pedal. Is it out of adjustment? This will prevent the starter from cranking.

SOURCE: 1997 astro 4.3 vortec v6 fuel pressure problem.

have you made shure there is fuel in the tank, they had alot of problems wth sending units on that year. if so chances are its the fuel pump. try banging on the bottom of the fuel tank while sombody tries to start the vehicle, if it starts replace fuel pump. faulty regulators will usually cause a very rich running condition.