Question about 1998 Chevrolet C/K 3500

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Well i have a 5.7L 5 speed. the other day it just lost all power and died on me like it had a fuel shortage. So i replaced the fuel pump and made sure the fuel filter is clean. It still will not crank. I can spray gas in the throttle body then crank it but it dies shortly after. What could be the problem?

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Turn key on and listen for pump you should here it for 2 seconds.If you don't here the pump then check fuel pump fuse and or relay.

Posted on May 25, 2011

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Replaced injector pump 990 David brown original had ceased now tractor starts runs for 20-30 seconds then dies. Restarts fine but only runs for 20-30 secs. First start in morning ran for 2-3 minutes


it indicates that there is a fuel shortage problem
check the supply pump for fuel supply to the pump elements
if the fuel supply pump is part of the injector pump , there could be a blockage in the fuel line or air still in the system
of there is a good supply of fuel to the pump then contact the shop that reconditioned the pump
if you just fitted another pump without reconditioning it , then talk to an accredited diesel pump specialist shop

Apr 01, 2017 | Cars & Trucks

1 Answer

Fuel pump fuse is good. didn't drop the tank. did tune up day before . cap, rotor, plugs . drove 15 -20 miles then died. still sound like ignition switch?


ok slow down, it stalls, that is all we need, no need guess.
and tune up don, but you skipped the fuel filter? and air filter,?

STALLS 101.
1: lost 12vdc to EFI system. lost elect. power. easy to test , easy to see. you can attach a DMM set to 12v at the IGN output wire.
and see if it drops to zero as engine dies. sure can.

2: you could , check for spark at death, got spark
and work that path if spark fails.
3: lost fueling, (sparks soaked in fuel x 4? ) then its flooding
if dry spark tips x4 then lost fueling , so try test fuel.

you failed to say, is this a hard fail , i t dont run now.
or is always random... just a lil hint.
assuming power is hot at all EFI fuses.
then fails only 3 ways,
1: lost compression hot (if solid lifters, lash never set)
2: lost spark'
3: lost fuel or flooding.

if flooding use WOT, in this super secret mode works, Wide open throttle cranking, clears floods. (ecu cuts all fuel in this mode)

Oct 20, 2013 | 1998 Honda Civic

2 Answers

1993 ford wont start


fuel pump is gone for sure. it ran until the fuel in engine burnt then died. poor 1/4 cup gas into intake. if it starts and dies a couple seconds later then 100% fuel pump.

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1 Answer

2002 HD 1500 Chevroley 4WD 4 door truck engin lost power and died could start but when acelarated died max rpm 800 pulled filter turned key on pump shot a stream of gas 3 ft and stoped ran only secon


It is normal for the pump to run for two seconds when first switched on to pressurize the fuel system. It will turn on again when cranking and while running. I would still suspect the pump given your symptoms, however other problems could also give you the same symptoms. If it is the original pump from 2002, or more than about 7 or 8 years old, I would definitely replace it, and the fuel filter. Often the pump will go intermittent. I had one that I could restart and get down the road by hitting the bottom of the gas tank a few times!

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1 Answer

I have a 2001 Rio 145,000. It started losing power (speed) taking off , then it just died, tried starting but would not turn motor, got it home and the starter was working but the car would not...


test for fuel from fuel pump check for spark from plugs check all fuses if not getting spark replace coil pack if not getting fuel replace fuel pump

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1 Answer

2003 jeep cherokee losing rpm and speed which is sporadic


Check fuel pump pressure, replace fuel filter, replace relays.

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1 Answer

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Check the relay. If not the relay you have a short (broken wire) grounding between the fuse block and fuel pump

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1 Answer

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My suggestion would be to replace the fuel filter, iver had this problem in my vehicles and replacing the fuel filter always seems to fix it

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