Question about Dodge Ram 2500

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Truck started good did about 500 feet and quit,now it will turn over and try to start but no go,fuel rail pressure 1500 to 2000 psi cranking,check for codes no codes

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Well first, I don't know of any vehicle that runs a psi that high on the fuel system. You'd be good to get around 60psi. I'm guessing you might be getting 15 to 20 psi, if that is the case then more than likely the fuel pump is bad and not supplying enough fuel. Possible clogged fuel filter depending if vehicle has one or not. Some vehicles fuel filter is a screen in the fuel tank with the pump. I would recheck the psi and verify that first. Good luck.

Posted on May 18, 2011

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Posted on Jan 02, 2017

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I have a 1998 jeep wrangler sport and it is having starting problems. i usually have to crank, release, then crank again to get it to start. it always ends up starting, but it takes a few tries. it occurs...


You can mount a fuel pressure guage to the engine fuel rail at its bicycle valve bleeder, with tof see if it has pressure when you first turn on the key to start. You may be able to hear the fuel pump running by listening at the fuel tank fill cap that you would remove for that moment. By turning on ignition to start, not run, you are energizing the fuel pump to bring up pressure that should happen in several seconds. So, check if it gets to normal fuel starting pressure, maybe 45 to 60 psi. Then turn key all the way to run, to get car engine running and watch the fuel pressure to see if it stays pretty constant at that 45 to 60 psi. Turn engine off, and watch how long it takes for fuel pressure to drop, and it should not happen fast but instead over 15 minutes or more. That might indicate your fuel regulator valve isn;t working right.
Is it possible your starting system is the culprit, say some battery cable loose that may make starting hard or eventually quit until you tighten these cable ends at battery and starter.

Aug 03, 2017 | 1998 Jeep Wrangler

2 Answers

How much fuel pressure is needed? I can not hear the pump but when I crank the engine fuel comes out of fuel rail. Car starts and dies right away


30-40 psi. th epump should run for 2 seconds when turning the key on, then run when engine is cranking and/or running.

Sep 22, 2011 | 1992 Mercury Cougar

2 Answers

Crank tolong before it start


First check your fuel pressure regulator by pulling the vacuum line off and check for fuel there should not be any.Then start the car and with a pressure gauge hooked up to fuel rail pull the vacuum line off the pressure should rise 5-10 psi if it does'nt replace regulator.Next check the fuel pressure it should be 41-47 with key on and engine off if not within specs replace fuel pump.

May 02, 2011 | 1995 Buick Roadmaster

1 Answer

The vehicle will not crank. it will turn over but will not start. it sounds like it's out of fuel but it's not. it is a 2004 kia sorrento.


turn the key on (do not start) try and listen to hear if you can hear the fuel pump hum while it builds pressure.

If you can hear it, then you should be getting fuel pressure. You can change your fuel filter if you have low fuel pressure at the fuel rails. They have a test port on them you can check for pressure.

If you have fuel pressure and it is at good pressure of around 75 psi
Then you likely have no spark. This could be a bad crank sensor, or a bad fuse somewhere. Have you checked all your fuses?

Jul 22, 2010 | 2004 Kia Sorento

1 Answer

Have to turn ign. on&off 3 times to prime it to start.


you have pressure bleedng off due to a bad check valve in the fuel pump or a bad pressure regulator (on the fuel rail) letting pressure bleed off.

When you turn the key on & off, it starts the fuel pump for 2 seconds each time. The pump turns off after 2 seconds unless the engine is running. The pump runs all the time during crank mode.
But you need 40 psi when you start cranking so the injectors can spray fuel into the cylinders.
please rate as fixya if this identifies your issue. Good luck.

Mar 11, 2009 | 1999 Ford Explorer

1 Answer

Completed tune up, drove for 2 blocks, engine shut down


Just having fuel is not enough on this engine, here are the spec's. Even 1 psi out of spec can cause a no start.

Fuel Pressure
Pressure 1 (PSI) Pressure 2 (PSI) Pressure 3 (PSI) Range Note Range Note Range Note 60.0 - 66.0 Y131 50.0 - 63.0 Y132 66.0 Y133 Y131: System pressure with ignition on (PSI).
Y132: System pressure while idling (PSI).
Y133: Fuel pump pressure (PSI) with return line briefly restricted.



Feb 24, 2009 | 2000 Chevrolet Blazer

1 Answer

OIL PRESSURE


4-28 Mpa depending on revs and conditions
The engine requires a minimum of 3.5 mpa (500
psi) of oil pressure to the oil rail while cranking to
start the engine

Feb 11, 2009 | 2001 Isuzu Trooper

2 Answers

1997 dodge intrepid


check the asd relay swap it with another like it. also check fuses and old car alarm if it had one.the cam and crank sensor will not affect fuel pressure. the cam sensor should not stop this car from starting. but the crank sensor will. good luck.

Nov 23, 2008 | 1994 Dodge Intrepid

1 Answer

Jeep grand cherokee 95 fuel pump takes long time to start ,


First install a fuel pressure tester on the fuel rail and check the pressure during crank. It should be about 30 psi.If the pressure is not good then it could be a bad fuel pump relay or fuel pump itself (in the tank).
If the fuel pump pressure is good then you could have a bad crank sensor.

Nov 20, 2008 | 1995 Jeep Grand Cherokee

1 Answer

1998 wrangler efi system


FUEL PUMP WILL PUT PRESSURE IN FUEL RAIL FOR YOU. sounds like fuel pressure in the fuel rail is losing pressure usally caused from fuel pump starting to go out. check pressure with fuel gauge. screw it onto the fuel rail connection turn the key forward (do not start ) then turn key off presure should hold around 16 psi. if the gauge starts to drift back down then the fuel pump is going to go out ( sometime)

Sep 03, 2008 | 1998 Jeep Wrangler

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