I recently had the gas tank and fuel pump changed since i got it back everytime you start the vehicle it would immediatley shut off after 1 or 2 times it would run good but would buck every once and awhile almost like it was shutting off and turning on it got real bad coming home from work and died on the side of the road after sitting a couple of minutes it started back up and made it home.I took it back to the garage they did a full tune up plugs wires distributor the mechanic said the catolytic converter collapsed and it would be 400$ for a new one the truck had no power driving home would bareley reach 30mph i took of the converter and muffler and replaced with glasspack but it still has no power ive already spent way to much money this is my only vehicle and my ride to work any help would be appreciated thanx
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It could be the fuel pump. The pump is in the gas tank. The pump is actually cooled by the fuel. Occasionally, in hot weather, when the pump starts to get old, if you run the fuel tank very low, the pump will heat up. Then, when refueling, you are putting fuel in the vehicle that comes from underground at about 50 degrees F. This can cause the pump to fail.
CHECK FUEL PUMP FUSE FIRST /THEN START BY HAVING SOMEONE UNDERNEATH THE CAR BY GAS TANK /SOMEONE ELSE START OR CRANK ENGINE 4 ONE SECOND LEAVE IGNITION ON THEY SHOULD HEAR PUMP RUNNING IF NOT LOCATE WIRES GOIING INTO FUEL PUMP/UNDERNEATH CAR BY GAS TANK OR UNDER BACK SEAT?CHECK WITH TEST LIGHT 4 POWER/NO POWER REPLACE PUMP.HAVE A NICE DAY
Have you ever put in the gasoline tank any injector cleaner yet because the cleaner will unclog the injectors so full amounts of gasoline can get into the piston chambers the right amounts so try putting injector cleaner into your gas tank. When you put this into the gas tank to remember that it takes time for the cleaner to get to the injectors so you might have to keep trying to start the vehicle many times for the cleaner to unclog the injectors. This will not hurt your vehicle at all so go try this.
A fuse will blow for 2 reasons .
1) If the device has a Short in the circuit that runs through this fuse.
2) If the device draws more amperage from the power source through the fuse than the fuse will handle.
ex. if a fuel pump or starter has a 20 amp fuse and the starter/fuel pump is going bad and draws 30 amps
it will blow the fuse.
A fuel pump on a 1996 vehicle is located in the fuel tank and is kept cool by the surrounding gas and the gas
that flows through it. Overheating a fuel pump is virtually impossible.
That being said there is a High probability that replacing the fuel pump and relay will fix this problem.
It is quite common for this to occur in the GM vehicle of 1996. When the pump starts to fail, it draws an
excessive amount of amperage and would blow the fuse. Hope you find this information useful.
You could try changeing the fuel filter its located under the drivers door mounted to the frame in the fuel line . But the most likely thing that it could be is the fuel pump. You could check fuse # 9 its a 20 AMP in the fuse box that feeds the relay located in the glove box but on this vehicle even if the relay wore bad the vehicle would still start it would just crank for a longer time . the fuel pump has a beck up power supply also feed from fuse #9 that runs through the oil pressure sending unit. So if its not the fuse its the pump or a bad connection at the pump and that is located inside the fuel tank witch needs to be droped to replace the fuel pumpGood luck with it but this is a common issue with blazers
This injector set-up needs a specific fuel pressure supplied to the fuel rail to even start, much less run properly. The fuel pump is immersed in fuel inside the gas tank to keep it cool and not burn up. Running the fuel level low causes more heat in the pump and interuptions in proper fuel pressure. AC/Delco pumps have proven to be a reliable fix, the aftermarket pumps only last for a month or two sometimes. Check fuel pressure under the hood and power and ground to fuel pump at electrical harness at top of gas tank. This truck needs a fuel pump.
fuel filter i would suggest but with half tank i would say it to be sending unit in tank
your vehicle should have 3 standard or more depending who owned before you
one in engine compartment
one on chassis back by the fuel tank under neithe
and the never ending sending unit in the tank this has a filter on it and could be clogged with debry also the gas you use could be causeing the sluggish ness cheap gas has debry in it