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Posted on Dec 15, 2012
Answered by a Fixya Expert

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My 91 gmc sieera 2500 will start but will not stay running

It will start but does not stay running

1 Answer

Stephen

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  • GMC Master 21,873 Answers
  • Posted on Dec 15, 2012
 Stephen
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Could be several things.
Someone will need to find out if you are loosing spark to the plugs or fuel to the injectors when it dies. If the pump stops running it could be a fuel pump relay. If the ignition system dies it could be a faulty coil.
And so on.

1 Related Answer

cy schousboe

  • 2002 Answers
  • Posted on Dec 27, 2009

SOURCE: my 88 gmc sieera is flashing the park break light

Most likely the cable has stretched and the pedal is not staying in the full upright position. If it drops a little it will trigger the light. To be sure use a bungee cord and hold the e brake pedal firmly up so it can't move and see if your light stops flashing. If it does the cable needs to be adjusted. You can get an adjuster at any autoparts store. It is a J hook affair that fits over the cable, you tighten the nut and it draws the cable in and tightens it up. Hope this helps.

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