Question about 2003 Nissan Sentra

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Will not hold pressure - 2003 Nissan Sentra

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  • dmitry rosenberg
    dmitry rosenberg Dec 28, 2013

    was able to start the engine by spraying starter fluid.

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Fuel pump not running? Not supplying fuel to rail, need to investigate pump circuit (relay), pump should prime on switching ignition on (only about 2 seconds). Hope that helps.

Posted on Dec 28, 2013

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Posted on Jan 02, 2017

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1 Answer

Force 120, 1999, no start cold, stalls out after running for 10 min, cranks hard restarts after sitting few minutes. Think fuel pump, any mercy mechanics out there that can give me a hand with this


Don't know this car. Check fuel pressure with a fuel pressure gauge- if correct, not a problem with the pump. Also make sure the pressure will hold for some time with key off. It should hold pressure for several minutes, maybe 20 minutes, some maybe a bit less, but it must hold pressure for a time. If pressure is good, check for spark when it won't restart. If spark is lost, suspect the crank position sensor.

May 25, 2017 | Cars & Trucks

3 Answers

How do you reset the low tire pressure light?


To reset the tire pressure system, do the following:

(NOTE!....Do not reset the check tire pressure system without first
correcting the cause of the problem and checking
and adjusting the pressure in all four tires. If you reset
the system when the tire pressures are incorrect,
the check tire pressure system will not work properly
and may not alert you when a tire is low or high.)

1. With the engine off, turn the ignition to ON.
2. Press the MODE button until the DIC reads LOW
TIRE PRESSURE HOLD SET TO RESET.
3. Press and hold the SET button until you hear a
chime, and TIRE PRESSURE RESET is displayed.

You will hear three chimes, then the LOW TIRE
PRESSURE message will go off and the DIC will return
to TIRE PRESSURE NORMAL. If the LOW TIRE
PRESSURE message comes back on, the check tire
pressure system has not reset. Repeat the procedure.
The system completes the calibration process during
driving. The system learns the pressure at each tire
throughout the operating speed range of your vehicle.
The system normally takes between 30 and 60 minutes of
driving to learn the tire pressures. The system normally
takes 10 to 20 minutes of driving in each speed range to
learn tire pressures. The speed ranges are 20 to 40 mph
(32 to 64 km/h), 40 to 60 mph (64 to 96 km/h), and above
60 mph (96 km/h). This time may be longer depending on
your individual driving habits. The learning process does
not need to be completed during a single trip. Once
learned, the system will remember the tire pressure until
the system is reset.

Jun 02, 2014 | 2004 Buick Rendezvous

1 Answer

Coolant system holding pressure


Holding pressure is a good thing. When it doesn't hold pressure worry. The cooling system Is a close system and when the coolant gets hot it actually expands creating pressure. Once it reaches a certain temperature the thermostat opens allowing hot coolant back into the radiator to cool and if there is to much pressure in the radiator a valve on the cap allows the coolant into the reservoir. When hot there's pressure which is why you should never open a cooling system when hot.

Apr 17, 2014 | Toyota 4Runner Cars & Trucks

1 Answer

Ford expedition stalls


Sounds like fuel pressure regulator faulty, not holding correct pressure in rail. Check fuel pressure before and after filter, attach fuel pressure tester to rail turn key on check pressure, does it hold? If it doesn't regulator is bad.

Feb 24, 2014 | Cars & Trucks

1 Answer

2004 jeep code 1763 what to do


P1763 - Governor Pressure Sensor Voltage Too High

This code is refer for the governor pressure sensor which is located in the valve body of the transmission. If getting power to the sensor and the wires are not open or shorted then the sensor will need to be replaced.

GOVERNOR SOLENOID AND PRESSURE SENSOR
REMOVAL

Hoist and support vehicle on safety stands.
Remove transmission fluid pan and filter.
Disengage wire connectors from pressure sensor and solenoid (see picture)
Remove screws holding pressure solenoid retainer to governor body.
Separate solenoid retainer from governor (see picture)
Pull solenoid from governor body
Pull pressure sensor from governor body.
Remove bolts holding governor body to valve body.
Separate governor body from valve body
Remove governor body gasket.

INSTALLATION
Before installing the pressure sensor and solenoid in the governor body, replace O-ring seals, clean the gasket surfaces and replace gasket.

Place gasket in position on back of governor body
Place governor body in position on valve body.
Install bolts to hold governor body to valve body.
Lubricate O-ring on pressure sensor with transmission fluid.
Align pressure sensor to bore in governor body.
Push pressure sensor into governor body.
Lubricate O-ring, on pressure solenoid, with transmission fluid.
Align pressure solenoid to bore in governor body
Push solenoid into governor body.
Place solenoid retainer in position on governor
Install screws to hold pressure solenoid retainer to governor body.
Engage wire connectors into pressure sensor and solenoid Install transmission fluid pan and (new) filter.
Lower vehicle and road test to verify repair.

zjlimited_748.gif

1 - PRESSURE SOLENOID RETAINER
2 - GOVERNOR

zjlimited_749.gif

1 - PRESSURE SENSOR
2 - PRESSURE SOLENOID
3 - GOVERNOR


Hope helps.








Sep 29, 2011 | 2004 Jeep Grand Cherokee

1 Answer

How do i reset flashing low tire pressure,change oil soon after the problem is taken care of?


To reset the tire pressure message, first make sure all pressures are appropriate, then turn the ignition on with the engine off. Press and hold the GAGES button located on the left side of the steering column until TIRE PRESSURE appears in the display. Press and hold the RESET button for 5 seconds until TIRE PRESSURE RESET appears then release the RESET button.

To reset change oil soon message, press GAGES button until OIL LIFE displays. Press and hold RESET for 5 seconds.

Mar 15, 2011 | 1998 Buick Park Avenue

2 Answers

The fuel pressure when ignition is off is 0. and the car takes long to start sometimes


With a fuel pressure gauge hooked up. the fuel pressure shoul d go up when you turn the key on. The fuel pump will only operate for about 2 seconds, then shut off again. The fuel pressure should hold steady for at least 5 minutes. If it does not hold, this is the reason for your hard start. It could be caused by a leaking fuel pressure regulator or more likely, the check valve in your fuel pump assembly. To find out which one it is, find a place in the fuel return line that is made of rubber and pinch the fuel return hose off with a pair of pliers. Repeat the fuel pressure test. If the fuel pressure now holds steady, your problem is the fuel pressure regulator. If it still drops, replace your fuel pump.

Jan 29, 2011 | Nissan Sentra Cars & Trucks

1 Answer

I have1997 4.3 ther.body i trun key rolling engr over get 50 psi wen stop rolling eng over feul psi go to 0psi right now


Does the truck run? 50 psi should be enough to start the truck. The fuel pump my not be able to hold the pressure. You may have an injector stuck open letting the fuel pressure drop. It could also be the fuel pressure regulator. It is very hard to find those problems because fuel injectors and regulator are mounted inside the intake. If you can find a way to block off the return line of the fuel pump you can see if it then holds pressure. Then try to block off the pressure line right after cranking to see if the pressure holds. This will let you know if the pump is working correctly.

Jan 11, 2011 | 1997 Chevrolet Tahoe

1 Answer

1997 GMC 1 ton 4x4 hard to start after it has warmed up. changed fuel filter no help No code to be read We have notice that the fuel in the rail is vapor not a liquid. Is this normal and if not what would...


The fuel pressure should hold at or near the 45 lbs after you shut the truck off.
You have one of three problems causing this.
One, the fuel pressure regulator is leaking internally and allowing fuel to return to the tank via the return line. To verify, use a pair of pliers and gently pinch the return line off. Turn the key on to the run position, the pump will run for 2 to 5 seconds and pressurize the line. Watch the pressure gauge, it should hold pressure. If it does, change the regulator.

Two, the check valve at the pump is weak. To verify, turn the key to the run position, when peak pressure is reached, gently pinch the pressure line and watch the pressure gauge. If the pressure remains near the peak pressure the check valve is bad. Replace the fuel pump.

Three, if neither of the above procedures work, you have a leaking injector. You will want to remove the fuel rail, pressurize it to find the bad injector.

Any one of these failures will cause the "vapor" issue you describe.

Good luck, let me know what you find.
Regards,

Apr 28, 2009 | 1997 GMC Sierra

1 Answer

Toyota rav4 1997 after i drive it about 1 hour it began to turnoff end difficul to start ,i wait 15 minutes after its ok


check fuel pressure possible fuel pressure regulator is going bad. fuel pressure should at 45 to 55 lbs.fuel pressure should hold for 5 min to 7 mins. if doesn't hold replace fuel pressure regulator

Jan 19, 2009 | 1991 Dodge Daytona

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