Question about Chevrolet 2500

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I have a chevy 2000 silverado. We just replaced the fuel pump and the battery, now the security light is on all the time, not flashing and the truck will start for a few seconds and then stall out. We have tried to relearn the codes, with the 30 minute process and we replaced the ignition, no change. Any advice would be helpful! thank you

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  • Chevrolet Master
  • 2,194 Answers

The security light is a visual indication that something in the car's antitheft system is failing. This link explains it pretty well.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

Posted on Jul 31, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: 2000 GMC Jimmy will not start

The oil presure switch does have some bearing on the problem but my suggestion is to change the coil. I had a the same problem with an astro van. I changed everything that you have described and it fixed the problem just for a little while and then all of a sudden did it again. I changed the coild and the cold start swithch and never had the problem again.

Posted on Nov 29, 2008

  • 1 Answer

SOURCE: FUEL PUMP FOR CHEVY SILVERADO

fuel filter? how about power to the fuel pump,loose ground wire to chasis? wiring harness? terminals clean at point of connection?did you check the fuel pump relay? Relay is located in electrical center under the hood on the driver side.relay and fuse legend will be on bottom side of cover, you sould be able to switch with another relay that you know works, ie: switch horn relay with fuel pump relay, honk horn to insure both relays are working when either relay is inserted into horn slot. Do you by chance have the electrical schematic drawing for the fuel pump?

Posted on Feb 19, 2009

csmock132
  • 4669 Answers

SOURCE: 2001 chevy silverado wont run

Have you checked fuel pressure.

Posted on Apr 02, 2009

  • 27 Answers

SOURCE: process to change fuel pump on 2001 chevy silverado 1500

take the six bed bolt loose and then take three buddies slide the bed back put in the new pump slide it back n place and put the bed bolts back in. if u drop the tank u can easily break the hard plastis lines that go to the fuel tank. u only have to take the fill lines and taillight wires loose this way its alot quicker, and easier.

Posted on Aug 07, 2009

  • 3600 Answers

SOURCE: 90 chevy k1500 350 tbi fuel problem starts but wont stay running

try bypassing the oil pressure switch on the back of the block behind the distributor, if there oil pressure switch goes bad it will do this. had one that drove me nuts trying to fix it then figured out I had to buy a book and low and behold thee it was 3 wire oil pressure switch you can't see between the engine and fire wall just behind the distributor and costs 8 bucks to buy new.

Posted on Jan 16, 2010

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