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Have a 1998 Chevy K2500. When key goes on all

Have a 1998 Chevy K2500. When key is turned to on all normal lights appear on dash, but twice now engine will not turn over (you do hear what I believe is the fuel pump cycling). Last time had service man came and it started immediately. First time it started after 30 min of trying to figure out problem. Have no idea of what I did to suddenly make it work. It ran fine, but dash "security" stayed on entire 3 hr trip. On each occasion the engine was cold.

Have noticed in past that when operating truck, once in a while, some dash lights will flash, and on one occation cruise control would not work.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 373 Answers

SOURCE: 1993 Acura - intermittent fuel pump operation (no start)

HI...
The common cause of the problem that you related.
Is the FUEL PUMP RELAY " Called MAIN RELAY.
Is located : left side under the dash.
Is a BIG relay gray colour. with a connector of 7 or 8 wires.
I recomend replace the relay.

And letme know if you solve your problem.

I hope this information work on your problem.
Thank you for use fixya.

Posted on Jul 25, 2008

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wyatt1582
  • 453 Answers

SOURCE: fuel shutting down

Anti theft system. You might have a door lock causing the anti theft system to kick in. (thinking its being stolen.)

Posted on May 18, 2009

  • 68 Answers

SOURCE: starting and running

check if the power to the fuel pump gets constant power when switched on it may have a electrical problem you may need to get a auto elect tech to help you

Posted on Aug 08, 2009

  • 65 Answers

SOURCE: truck wont start. security lite on. doesnt seem

turn the key to the on position and pump the gas 4-5 times, this should help. My mom has a 03 silverado wich also done this and I contacted a dealer and they gave me this solution and it worked.

Posted on Aug 14, 2009

  • 811 Answers

SOURCE: engine will not start.turns over fine.ran fine

run scanner for trouble codes, some auto parts stores   will do this for free,check fuses, check for fuel at fuel rail, if not check fuel pump relay, you should here it click when key is first turned on, if not try to bend tabs slightly to make good contact, if no click, replace relay if so turn key off then on listen in tank with cap off for whirling sound if tank, if not could be fuel pump, sorry 

Posted on Oct 10, 2009

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