Question about 1999 GMC Suburban

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An not getting fuel

My suburban just stop running the fuel pump was done about two years ago when i put gas in the throdle body the car will run for a short time what can this be

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When you turn the key on listen for the fuel pump to run for 3 seconds, its the "prime" function..
You will have to listen for this at the fuel fill inlet tube..it will hummm..
I am 99% sure your fuel pump has burnt up though.. its common with those... remember when you buy replacement parts at Oreilly or Autozone ect, you pay for what ya get.. buy the more expensive one, and also in the future never let your gas get below 1/4 tank.. that is what keeps the fuel pump cooled...

Posted on Nov 24, 2008

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Posted on Jan 02, 2017

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I have a 93 gmc suburban it starts then dies if I put my foot on the gas to keep it running smoke comes out the muffler and when I take my foot off the gas it dies


Sounds like too much fuel, could be a leaking injector, faulty pressure regulator, or blockage of air intake. Did you replace the injectors and pressure regulator when you worked on the throttle body ? Can you see normal fuel spray on both injectors when the engine is running ?

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1991 1500 4x4 5.7 liter suburban. Will start and then die, like its not getting gas. Fuel pump has been checked, gas pressure regulator has been replaced, shop said hose from fuel tank to fuel pump had...


Yes, there is a Fuel Pump Relay. The Relay is located on the firewall just above the left-hand (even cyclinders) valve cover as viewed from the front of the car. There is also fuel pump test lead attached to the harness at the fuel pump relay. Attach a power wire from the battery to the lead and the fuel pump should come on. If fuel pump comes on, the relay could be bad. Also check the fuel filter located under the passenger side of the truck tucked into the frame rail.

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1998 gmc suburban runs great when it is drove for anywhere from 30 minutes to a couple hours. It will either die when coming to a stop or will not start after being ran for awhile and turned off. fuel...


You said a would not start but you didn't say if it would crank. if it does not crank it sounds like it might be a bad battery. Dirty battery terminals, or if there's an alarm on the car that could be a problem. When it cools down if it starts to crank again that sounds like it might be the battery. But if it does crank pour some gas down the throttle body. If it starts and dies out you have a fuel problem. If it does not start you probably have a problem with your ignition system or power going to it. Good luck.

Jun 20, 2010 | 1998 GMC Suburban

1 Answer

Fuel pump


THE FIRST THING I WOULD DO IS REMOVE THE FUEL CAP PUT YOUR EAR TO THE FILL PORT AND HAVE SOME ONE PUT KEY INTO THE RUN POSTION IF YOU HEAR A WINNING SOUND THEN THE PUMP IS TURNING ON.IF THE PUMP IS TURNING ON THEN I WOULD CHECK THE FUEL PRESSURE AT THE THRODLE BODY. IF THE PUMP DOESN'T WINE THEN I WOULD CHECK ALL OF YOUR FUSES, IF THE FUSES ARE GOOD YOU MIGHT BE LOOKING AT REPLACING THE FUEL PUMP, WHICH IS COMMON FOR GM. IF ALL IS GOOD WITH FUEL THAN I WOULD LOOK AT A NO SPARK ISSUE. BUT CHANCES ARE IT WILL BE A FUEL ISSUE. GOOD LUCK HOPE THIS HELPS

Nov 27, 2009 | 1994 GMC Suburban

2 Answers

99 gmc wont start


check electric fuel pump operation ( located in the fuel tank ). Occasionally a fuel pump will burn out when running out of fuel, due to the fact the pump runs DRY for about 30 seconds till the fuel stops flowing out of the injectors, the engine quits, simultainously losing oil pressure which FINALLY shuts off the fuel pump. Sometimes TOO LATE. Hope this helps

May 01, 2009 | 1999 GMC Suburban

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