Question about 1998 GMC Sierra

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1998 GMC Sierra won't fire and run

I get fuel up to the Fuel Meter Body, but the engine will not fire unless I spray starter fluid into the throttle body then only runs on what I spray into it.

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  • bruceyounger Feb 12, 2009

    I don t know the pressure I disconnected the fuel line at the Fuel Meter body and ran a tube to a gas can and had lots of gas pumping

  • bruceyounger Feb 12, 2009

    I drive the truck daily, the gas I use is from chevron. I am going to hook up to a computer later today. I should get a code that will help. I will also try to get a fuel pressure gauge.

  • bruceyounger Feb 13, 2009

    I tested the fuel pressure and it was barely 10 lbs. I have changed the fuel filter. Would that indicate a fuel pump issue?

  • the dave May 11, 2010

    Do you have correct fuel pressure? Has the truck been sitting or did you fill up recently and get bad gas?

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  • 141 Answers

INJECTOR MAYBE?

Posted on Feb 13, 2009

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1 Answer

Still I have not been able do find out the problem, My engine does not start, I have fuel in the line and spark, anybody can light me out what it could be wrong?


CAUTION - Be careful when using volatile fluids like starter fluid in the open as they are flammable and may start a fire; having a fire exstinguisher present is a good idea.
Pull back a small part of the boot just in front of the throttle body, open the throttle all the way up and spray about 3 seconds of starter fluid inside the manifold. Push the boot back in place and attempt to start it. If it starts or attempts to start but shuts back off, it has fuel supply issues which could be the injectors, wiring, the ecm, the fuel pump or other related electronics.

Feb 14, 2015 | 1997 GMC Sierra

1 Answer

Why wont my 1998 gmc sierra 3500 start


Check for fuel by pouring small amount of clean gas down throttle body and crank engine over. if it starts and runs just for a few seconds you have a fuel delivery problem

Aug 03, 2014 | 1998 GMC Sierra

1 Answer

We have a 98 Malibu that turns over but won't start.I was told it might be the fuel pump.If I use a diagnostic meter,will a code show for a bad fuel pump?


A bad fuel pump will not necessarily show a code. If you have a throttle body try spraying a little bit of starter fluid into it. Then try to start the car. If you have it will be under under the air cleaner cover and kind of looks like a conventional carbureator. If it starts with starter fluid and then dies you have a bad fuel pump, or clogged fuel filter. The fuel pump will be in the fuel tank. Im not sure where your fuel filter would be.

Jul 27, 2012 | 1998 Chevrolet Malibu

1 Answer

Traveling at 20 30 40 miles per hr, remove foot from throdle anf it wont slow down unless i break


maybe you have a throttle plate that is getting sticky try and buy a can of throttle body cleaner shoot it down the throttle body and clean it out while running just dont spray too much chance fire but this should help it if not check the throttle linkage

Sep 11, 2010 | 1998 GMC Sierra

2 Answers

Wont start


simpler that exposing the throttle body just depress the accelerator 3/4 and try to start.

If like before, the vehicle starts... watch the rear view mirror for black smoke

both indicates a leaking injector(s)

Mar 16, 2010 | 1998 GMC Sierra

1 Answer

Won't start.


try putting ether also known as starter fluid spray from auto parts store in fuel throttle becareful dont stand in front of motor when starting

Jan 29, 2010 | 1998 GMC Sierra

2 Answers

Throttle body injectors not fiering but there is fuel pressure


the injectors are fired thru the engine cotrol module but it gets its signal to fire from the pick-up located inside the distributor if you are loosing injector pulse only the ignition module is bad if you are also loosing spark when you loose injector pulse your pick up is causing the problem if you replace the pick-up i recomend you change the ignition module when doing so because they work together and you have to remove the distributor to change the pick-up

May 31, 2009 | 1994 GMC Sierra

1 Answer

Fuel pump? maybe


Just turn key as far as run, and you should hear it. If no luck, spray WD-40 in throttle body intake, and try starting.If it fires up, it's a fuel problem, if not, check for spark.

Feb 14, 2009 | 1998 GMC Sierra

3 Answers

1996 GMC Sierra 1500 truck fuel problem


Have you check the injector relay or maybe a fuse for injectors.

Aug 26, 2008 | 1996 GMC Sierra

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