[dweglarz13]

Hello everyone. I have been trying to figure this one out for a while now, but now my truck won't start, so I am in a bad spot. For a month or two now, every 2 weeks the truck will just not stay running. I get in it in the morning, and when i start it, it turns over, but will only run for a second or two. It doesn't seem to make any sense. I thought it was the ground points a couple weeks ago, so i cleaned all of them, and the truck started and ran fine, but now it did it again to me. I don't know what to do. Like i said, it starts perfectly, just won't stay on for more than 2 seconds or less. It does this in park and neutral. I am aware that it pretty much could be anything at this point, but i don't know where to start, especially without too much money right now. I put new terminals on, cleaned the grounds, and checked most of the wires to the battery and alternator. Please help me figure this out. My truck is a 98 rangie. thank you guys, i really need some help.

 

[Invalidsession]

It sounds like your fuel pump may be at fault given the symptoms you describe. Run a pressure test on the fuel rail to see if the system is holding pressure.

Chris.

 

[dweglarz13]

Thanks, but someone else told me that too, but I am not sure exactly how to go about this. I think i disconnect something, and then connect a tire pressure gauge to it somehow, i think. Maybe I am way off. If it were the fuel pump, wouldn't it not come back on? like the way the last three or four times this happened, it eventually turned on after a few days? doesn't seem to be turning on now, though.

 

[diff]

Following this train of thought could you also check the relay that powers the pump just to make sure it is getting all the juice it can. I would guess that you might be able to rent a fuel pressure guage and finally a few bangs on the tank to see if that might jolt it. On my van when it died it just died. I can't say that I've ever heard ours run on the rangie. Good hunting.

 

[dweglarz13]

my fuel pump relay is actually a little burnt on one corner, so I already swapped it with another of the same color, and still doesn't work. I guess this means that the relay is fine?

 

[dweglarz13]

?????????? the funny thing is, when i took out the relay, the car just cranked, and wouldn't turn over. When i put it back in, in started again fine, but STILL won't stay running for more than a couple seconds at most. I guess this means the fuel pump and relay are serving their purpose, as i didn't really want to spend 70 dollars on a relay that might be ok anyway. Does anyone have any thoughts? i really need help here. thanks

 

[viperover]

Check fuel rail pressure, has fuel filter been replaced.
If you turn on ignition can you hear the fuel pump comming on, if so how does it sound

 

[dweglarz13]

hey guys. The pump always sounded fine. i went thru everything with the fuel system, new filter, relay seems fine, etc. any ideas what else could cause this? like i said, it still starts fine, just won't stay on for more than a second. thanks again, still not having any luck with this.

 

[SID]

Check fuel rail pressure, air filter and sparks. you need all three to run........
But from what you have said I would think it is a fuel issue so check the fuel pressure and the filter.

 

[keithdixon]

check http://www.youtube.com/watch?v=tJF5Lli4xq8 as mentioned to make sure your vehicle is getting the fuel it needs.

If it's cutting out every min it could be fuel starvation.
The test would eliminate it

 

[SID]

Just Found this on RAVE......MAF sensor, 'as there is no default strategy, failure will result in the engine starting, and dying when it reaches 550 rev/min, when the ECM detects no MAF sensor signal'

Maybe this might be playing up, try a clean up and check wires... :thumb:

SID.