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2000 Nissan Quest / Fuel problem


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Delta38ECHO
New User

Jun 9, 2013, 5:01 PM

Post #1 of 4 (4012 views)
2000 Nissan Quest / Fuel problem Sign In

I have a 2000 Nissan Quest (van), and my problem is that it turns over and even starts; (if that's 2 in the same then please forgive me, I'm new to all of this.); but quickly dies (milliseconds later) and it sounds like fuel to the engine is just not present after the initial start. (Starts up sometimes as mentioned here, but mostly it's just the sound of the engine trying to start. "With key turn intervals lasting 2-3 seconds."

So far I:
. Checked the gas cap and felt very little pressure so i changed the fuel pump ( couldn't really hear the fuel pump rev up before when the key was turned slightly, just enough to get the electronics on.) So now it's on and gives off much more pressure than before. (tested by taking gas cap off after spinning up the fuel pump.)

. Changed the fuel filter

. Changed the fuel regulator

. Checked all spark plugs and fuses (they were added a few months ago so they were still good this time when I checked them.)

. Made sure hoses that I put back onto the fuel regulator were just like I found it. Clasped in the right places and such.

. Tested and added starter fluid to my engine when turning it on and the engine spun up nicely. According to the forums I found I do indeed have a fuel problem.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 9, 2013, 5:09 PM

Post #2 of 4 (3998 views)
Re: 2000 Nissan Quest / Fuel problem Sign In

You lack fuel so stop tossing parts!

Why? Cranking it should have fuel and apparently does but quits sending power to fuel pump when releasing key. Find out where power drops off for fuel pump and quit tossing parts at it. Could be as dumb as a relay?

T



Delta38ECHO
New User

Jun 9, 2013, 5:37 PM

Post #3 of 4 (3987 views)
Re: 2000 Nissan Quest / Fuel problem Sign In

Mr. Tom Greenleaf,
Let me begin by saying that's a nice cat picture you have there, sir.

My dad and I have been under the van and contemplating what it could be as before then darn thing wouldn't even turn over. (Wasn't a battery issue.) Changing the fuel pump/filter was needed as it still seemed the previous owner never changed them from it's original factory parts. With that all changed the fuel seemed to now be going up the relay and it was actually giving signs of life. Still wasn't enough though, so we checked for somewhere to check the pressure but no outlet was visibly present to do so. Thus leading our search to the fuel pressure regulator which looked to be the problem. Removing those hose from it, I noticed fuel leaking from it leading me to believe it was either clogged or something else in line from it was still messed up. After changing that; my van turns over and has a powerful "vroom" but quickly dies down. Pumping the gas pedal as it starts up though keeps it alive much longer but not by much. (seconds: 3-4)

My dad believes it to either be:
.Fuel Injectors
.An electrical problem
.A vacuum issue (not sure how to test for that.)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 9, 2013, 6:41 PM

Post #4 of 4 (3955 views)
Re: 2000 Nissan Quest / Fuel problem Sign In

Kitty has been a site mascot for ages. If you like cat hair in everything we can negotiateCool

Finding fuel in regulator is NG but you fixed that? Filters are not a waste IMO. Pumping gas pedal is just excersise for your foot and does nothing.

Relays can operate and not put enough amps thru them. Most all vehicles have fuel while cranking then switch to fuel electrically supplied once running. It can run on priming it so I'm ruling out electrical for spark issues for now.

All injectors bad? Not likely. They probably don't get the pulse to work instead.

You can noid light your injectors and see if they cut off when you let go of the crank mode of ignition and about know they quit. Why is yet to be determined. Fuel pressure still must be up to par new parts or not.

Vacuum issue? For now just look for cracks, anything about any of them broken or leaking. A gauge or hand pump is handy to check assorted pressures and what holds and shows the actual vacuum by Hg when things should.

Keep at it. For now we know fuel supply isn't getting into combustion chamber when you let go of the key to just "run" postition,

T







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