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gerald james Posted on Mar 26, 2019
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996 blazer fuel pump runs but will notm start truck prime it it runs only until the prime gas is used

Is there a reset button for the fuel

1 Answer

Kenneth Simmons

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  • Chevrolet Master 1,239 Answers
  • Posted on Mar 26, 2019
Kenneth Simmons
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Joined: Oct 31, 2010
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If you prime it and it runs till the prime is gone I would think it has something to do with fuel. The fuel pump could run but not put out enough pressure. I had a 88 blazer I was able to hook up a fuel pressure gauge by the left rear tire and found low pressure. I fixed the car when I changed the fuel pump. It could also be a fuel pump fuse or relay. If the pump is running it may rule out fuse or relay. Here are a bunch of video which has a good bit of info. Some of it may help. If you think it is a relay you may be able to swap relays with something else, if they are the same relay. Make sure what you swap with is not a vital part. I have found something like swap fuel with AC relay something like that. I actually went to a junk yard and found several relay for a dollar each one time. At that time I did not know anything about how to check them. They may not be a dollar now. Hope this helps
https://www.youtube.com/watch?v=MO2cDvDwPp0
https://www.youtube.com/watch?v=7syxAWw6Q-s
https://www.youtube.com/watch?v=X1bdHQ0HbdA
https://www.youtube.com/watch?v=pRWppSEogeo
https://www.youtube.com/watch?v=HGdOwERGoe8
https://www.youtube.com/watch?v=WdldGv40dS8

5 Related Answers

Anonymous

  • 180 Answers
  • Posted on Jan 01, 2009

SOURCE: 1986 Toyota pickup, Hilux fuel pump

NO the problem most likely is your carb. draining down or accelerator pump not working.

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Anonymous

  • 295 Answers
  • Posted on Mar 18, 2009

SOURCE: HELP! HELP! SOMEONE PLEASE ! 2001 chevy blazer fuel problems

I would check to be on the safe side the fuel filter is going in the right direction. The arrow is pointing towards the engine away from the fuel tank, Then you need to make sure the fuel pump wiring connections are good contact and did not come loose when driving.

Anonymous

  • 811 Answers
  • Posted on Sep 27, 2009

SOURCE: 1999 chevy blazer fuel pump cycles when key is on

check or replace fuel pump relay

Brian Anderson

  • 399 Answers
  • Posted on Oct 03, 2009

SOURCE: Have a 98 gmc 5.7 truck have to prime to start truck.

Sounds to me like either your pressure regulator is bad or you have a loose fitting somewhere in the fuel line from the fuel pump to the engine. When you turn your key to the on position, you should hear the whine of the fuel pump until it builds pressure. When you shut the truck off the pressure regulator should retain the pressure for a certain amount of time but if it don't close then air is allowed into the fuel line and the fuel drains down to fuel line away from the engine. Next time you try and start the truck after it has sat for a while try turning the key on until you hear the fuel pump whine shut off, then repeat it 3-5 times and then try to start it. Basically that is running the pump enough to get the fuel back up to the injectors. Check for loose fittings in the fuel line, or cracks in the fuel line and if all that is fine then replace the regulator.

Hope that helps

Testimonial: "sounds like a good idea i will try that THANKS!!!"

Brian Anderson

  • 399 Answers
  • Posted on Dec 19, 2009

SOURCE: truck won't start, can't hear either fuel pump 1992 Ford F 150 5.

If you can't hear the fuel pump when you turn the key to the on position trying to build up fuel pressure, it is most likely either a voltage issue at the fuel pump or you need to replace the fuel pump. Have you checked your fuel filter? Try turning on the key without engaging the starter and see if you hear the whine of the fuel pump.

Good Luck

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1helpful
2answers

Ran out of gas2002ptcruser now it won't start .turns over but never starts.

You might have lost the prime to the pump or burnt the pump out do to running it low on gas consistanly. Before you pull the gas tank out to get to the pump check for spark and in some cars theres a fuel pump shut off switch you might just haft to push a reset button but usually that switch only trips when you in an accident. At any rate if you have spark you know its getting air the only thing left is fuel then check owners manual for a emergency gas pump kill switch and reset it and if not then it looks like your fuel pump bit the dust. Good luck
1helpful
2answers

1999 blazer only starts when primed and then wont start after sitting

Black smoke is usually extra fuel, but you say you are priming it to start so that could be why.
Have you checked fuel pump pressure before and after cranking ?
3helpful
1answer

I Let my chevy Blazer run out of gas,nw it wont start even though the relay and fuelpump is working.

Is it electric or mechanical pump? Electric is with fuel injection. If its fuel injection, you should hear the pump run when you turn ignition switch. If u don't hear it, try starting, if no, turn off then on. It will self prime. Carburetor is with mechanical pump. I usually put few drops of gas in the carb. Start it, if no, more in carb till it stays running.
0helpful
1answer

Where is the fuel cutoff switch located for 1998 nissan pathfinder

Reseting the fuel pump kill switch.

Before you reset the fuel pump, make sure to read all of the following instructions!!!!!

            • MAKE SURE YOU HAVE GAS IN YOUR TANK! IF IT IS EMPTY, THE FUEL PUMP MIGHT NOT NEED TO BE RESET, IT ****** ****** MIGHT ONLY NEED TO BE PRIMED, PUT AT LEAST TWO GALLONS IN THE TANK AND SKIP TO "Step 4". ******

1.) Look for an access panel in the trunk, driver's side; it might even be labeled "Fuel Pump Reset".

2.) Open the compartment and press the red button. This should reset the pump.

3.) At this point it might be a good idea to "burp" the fuel tank. This will probably be the easiest thing you do all day! Just pop the cover and unscrew the gas cap, this will release any preasure built up inside the tank. As long as you're in a controled environment, go ahead and leave the cap open until you finish "Step 4". Otherwise "burp" it a couple of times while you're priming the lines.

4.) The next step is to prime the pump. In other words, make sure there is enough gas in the fuel lines to start the car. The easiest way to do this is by turning the key back and forth from the "OFF" to the "ON" position. *** Be sure not to turn all the way to the "START" position until you have performed "Step 4", at least 3 or 4 times. If you attempt to start the car before the fuel pump is properly primed, you will run a serious risk of burning out the pump. This could lead to even more costly repairs!!!

5.) Replace the gas cap before attempting ignition.

6.) Once you have reset the pump, burped the tank, primed the fuel lines, and replaced the gas cap; you should be all set! Go ahead and give it a crank, good luck!!!!!!!!!!!!!!!!

3helpful
3answers

My truck used to run... but then i ran it outa gas.... now it wont start but will turn over..... i have a 1991 chevy s-10 blazer 4x4 with 4.3 liter v6.... if i poor gas into the carborater it runs like a...

poss ur fuel pump went bad thats very common on this truck or fuel pump relay i would turn truck on and see if u can hear fuel pump come on u have to take gas cap off
0helpful
1answer

How to check for a bad fuel pump in a "99" blazer, 4.3 motor? I sprayed starting fluid in air fillter and it would fire but not run.

If gas and starting fluid does not create a spark I believe the coils or ignition module is your problem
To check the fuel pump turn the key to the on position without trying to start the engine. Once turned to to on position the fuel pump will run for 5 secounds to prime fuel pressure to the injectors. If heard running you have a problem above as mentioned
0helpful
1answer

I have a 95 chevy blazer and at first i was able to prime my gas tank several times then it would start. Now i have to spray starting fluid in it every time i want to leave. I can hear my fuel pump kicking...

The fuel pump may be running but it may not be providing enough fuel pressure. Have the fuel pressure checked at the fuel rail and if it is not to specification, replace the fuel pump.
0helpful
1answer

Could this be a cold start problem

defective fuel pump the check valve is allowing it to lose prime replace fuel pump.
0helpful
1answer

I have96 blazer will start and run if i prime carb with gas but

did you also replace the fuel filter with the pump?
2helpful
1answer

HELP! HELP! SOMEONE PLEASE ! 2001 chevy blazer fuel problems

I would check to be on the safe side the fuel filter is going in the right direction. The arrow is pointing towards the engine away from the fuel tank, Then you need to make sure the fuel pump wiring connections are good contact and did not come loose when driving.
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