dan@[EMAIL PROTECTED]
wrote:
> It's dark and raining here. My 1999 Suburban K1500 is stuck in a
> parking lot a few miles down the road and it will not start. It
> cranks just fine and the lights are nice and bright. There is no hint
> of the engine firing even a single cylinder. My wife says there was
> no hint of any problem. The truck was running fine. She parked it
> and when she came back, it cranked but would not start.
>
> I was having massive EGR problems and put in one of those Klean Screen
> units. I have heard that they can clog and make the engine hard to
> start. However, we both tried pumping the gas pedal to see if we
> could coax the thing to start … and nothing. So I am thinking it may
> not be a clogged EGR passage.
>
> I noticed that I don't smell any gas … at all and the truck has plenty
> of fuel in the tank. I figure pumping the gas pedal should flood the
> engine ... but I smell nothing. I also noticed the truck is dead
> quiet. I could have sworn that the Suburban makes a loud humming
> noise as soon as you turn the key. I always though that humming noise
> was the fuel pump. If this is the case, then I believe that I that
> the fuel pump is not running. Perhaps the fuel pump is dead, or I
> have a blown fuse. Perhaps there is some problem with the oil
> pressure and the fuel pump has cut off. I'm not sure how to tell … in
> the dark … in the rain.
>
> So does anyone know off hand if I should be able to hear the fuel pump
> running if I crank the engine over ?
>
> I will go back to the truck tonight with the wife and have her crank
> the car over and I will check for arcing by the distributor cap and
> wires. The cap and rotor are pretty new so I highly doubt this is the
> problem.
>
> I will also bring a meter and check the fuel pump fuse. Any other
> suggestions?
>
> Thanks,
> Dan
The clean screen isn't the problem. Even if the EGR was plugged solid
the engine would still run. Crappy once it warmed up but it would still
run.
Sounds more like the fuel pump died. You should hear it run for about
2-3 seconds then shut off without the engine running. If the FP relay is
bad it won't run with just the key on.
First thing to try. Go back to the fuel filler, take it off and listen
for the pump when the key is turned ON. No noise = pump not turning.
It could be a bad pump or bad connection/wiring going to it.
Now you MIGHT be able to get the pump to come on if you give the bottom
of the tank a solid whack with something like a chunk of wood or even
your hand. Do this with the key ON and see if the pump runs then.
If it does DON'T turn off the key, fire up your truck and drive it to
either your place so you can drop the tank and change out the pump, OR
to a shop if you want them to do it. Be prepared for the pump module to
be VERY EXPENSIVE.
Oh and pumping the gas on a fuel injected engine is useless. No pump
pressure = No fuel to the injector unit. There is also no accelerator
pump or any other enrichment system.
--
Steve W.
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